Ford Escape Quiz
Electrical

Diagnosis and Testing - Blind Spot Information System

In this manual: Electrical
General Information — 26Chassis — 160Powertrain — 323Electrical — 356Body and Paint — 290
~78min read

Diagnostic Trouble Code (DTC) Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Module Trouble Code Description Action
DDM B118K:11 Left Blind Spot Warning Indicator: Short to Ground GO to Pinpoint Test F
DDM B118K:15 Left Blind Spot Warning Indicator: Short to Battery or Open GO to Pinpoint Test D
DDM B118K:15 Left Blind Spot Warning Indicator: Short to Battery or Open GO to Pinpoint Test F
PDM B118D:11 Right Blind Spot Warning Indicator: Short to Ground GO to Pinpoint Test F
PDM B118D:15 Right Blind Spot Warning Indicator: Short to Battery or Open GO to Pinpoint Test D
PDM B118D:15 Right Blind Spot Warning Indicator: Short to Battery or Open GO to Pinpoint Test F
PDM B11D6:11 Driver Display Warning LED Indicator: Short to Ground GO to Pinpoint Test E
PDM B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open GO to Pinpoint Test C
PDM B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open GO to Pinpoint Test E
PDM U0100:00 Lost Communication with ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test I
PDM U0101:00 Lost Communication with TCM: No Sub Type Information GO to Pinpoint Test I
PDM U0121:00 Lost Communication with Anti-Lock Brake System (ABS) Control Module 'A': No Sub-type Information GO to Pinpoint Test I
PDM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test I
PDM U0146:00 Lost Communication with Serial Data Gateway 'A': No Sub Type Information GO to Pinpoint Test I
PDM U0151:00 Lost Communication with Restraints Control Module: No Sub Type Information GO to Pinpoint Test I
PDM U0155:00 Lost Communication with Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test I
PDM U0199:00 Lost Communication with Door A Control Module: No Sub Type Information GO to Pinpoint Test I
PDM U0232:00 Communication Lost with Blind Spot Detection Control Module A: No Sub Type Information GO to Pinpoint Test I
PDM U0232:87 Communication Lost with Side Obstacle Detection Control Module A: Message Missing GO to Pinpoint Test J
PDM U0401:86 Incorrect Data Received from ECM/PCM 'A': Incorrect Signal GO to Pinpoint Test K
PDM U0402:86 Invalid data received from TCM: invalid signal GO to Pinpoint Test K
PDM U0415:86 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module A: Invalid Signal GO to Pinpoint Test K
PDM U049A:86 Invalid Data Received from Door Control Module A: Invalid Signal GO to Pinpoint Test K
PDM U0533:62 Invalid Data Received from Side Obstacle Detection Control Module A: Signal Comparison Failure GO to Pinpoint Test L
PDM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test M
PDM U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test M
PDM U2300:55 Central configuration: not configured GO to Pinpoint Test M
PDM U3000:44 Control Module: Data Memory Failure GO to Pinpoint Test N
PDM U3000:45 Control module: software memory failure GO to Pinpoint Test N
PDM U3000:46 Control module: calibration/parameter memory failure GO to Pinpoint Test N
PDM U3000:49 Control Module: Internal Electronic Failure GO to Pinpoint Test N
PDM U3002:62 Vehicle Identification Number: Signal Comparison Failure GO to Pinpoint Test M
DDM B11D6:11 Driver Display Warning LED Indicator: Short to Ground GO to Pinpoint Test E
DDM B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open GO to Pinpoint Test C
DDM B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open GO to Pinpoint Test E
DDM U0100:00 Lost Communication with ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test I
DDM U0101:00 Lost Communication with TCM: No Sub Type Information GO to Pinpoint Test I
DDM U0121:00 Lost Communication with Anti-Lock Brake System (ABS) Control Module 'A': No Sub-type Information GO to Pinpoint Test I
DDM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test I
DDM U0146:00 Lost Communication with Serial Data Gateway 'A': No Sub Type Information GO to Pinpoint Test I
DDM U0151:00 Lost Communication with Restraints Control Module: No Sub Type Information GO to Pinpoint Test I
DDM U0155:00 Lost Communication with Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test I
DDM U0200:00 Lost Communication with Door B Control Module: No Sub Type Information GO to Pinpoint Test I
DDM U0233:00 Communication Lost with Blind Spot Detection Control Module B: No Sub Type Information GO to Pinpoint Test I
DDM U0233:87 Communication Lost with Side Obstacle Detection Control Module B: Message Missing GO to Pinpoint Test J
DDM U0401:86 Incorrect Data Received from ECM/PCM 'A': Incorrect Signal GO to Pinpoint Test K
DDM U0402:86 Invalid data received from TCM: invalid signal GO to Pinpoint Test K
DDM U0415:86 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module A: Invalid Signal GO to Pinpoint Test K
DDM U0501:86 Invalid Data Received from Door Control Module B: Invalid Signal GO to Pinpoint Test K
DDM U0534:62 Invalid Data Received from Side Obstacle Detection Control Module B: Signal Comparison Failure GO to Pinpoint Test L
DDM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test M
DDM U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test M
DDM U2300:55 Central configuration: not configured GO to Pinpoint Test M
DDM U3000:44 Control Module: Data Memory Failure GO to Pinpoint Test N
DDM U3000:45 Control module: software memory failure GO to Pinpoint Test N
DDM U3000:46 Control module: calibration/parameter memory failure GO to Pinpoint Test N
DDM U3000:49 Control Module: Internal Electronic Failure GO to Pinpoint Test N
DDM U3002:62 Vehicle Identification Number: Signal Comparison Failure GO to Pinpoint Test M

Global Customer Symptom Codes (GCSC) Table

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Symptom Action
Driver Assistance and Information > Blind Spot (BLIS)/Cross Traffic > Control > Inoperative GO to Pinpoint Test A
Driver Assistance and Information > Blind Spot (BLIS)/Cross Traffic > Control > Inoperative GO to Pinpoint Test B
Driver Assistance and Information > Blind Spot (BLIS)/Cross Traffic > Control > Inoperative GO to Pinpoint Test H
Driver Assistance and Information > Blind Spot Information System (BLIS)/Cross Traffic Alert > Performance > Inoperative GO to Pinpoint Test A
Driver Assistance and Information > Blind Spot Information System (BLIS)/Cross Traffic Alert > Performance > Inoperative GO to Pinpoint Test B
Driver Assistance and Information > Park Assist > Control > Inoperative GO TO Pinpoint Test O
Driver Assistance and Information > Park Assist > Performance > Inoperative GO TO Pinpoint Test O
Driver Assistance and Information > Rear Sensing > Control > Inoperative GO TO Pinpoint Test O
Driver Assistance and Information > Rear Sensing > Performance > Inoperative GO to Pinpoint Test G
Driver Assistance and Information > Rear Sensing > Performance > Inoperative GO TO Pinpoint Test O
Lighting/Glass/Vision > Mirror > Side > Appearance GO to Pinpoint Test C
Lighting/Glass/Vision > Mirror > Side > Appearance GO to Pinpoint Test D
Lighting/Glass/Vision > Mirror > Side > Appearance GO to Pinpoint Test E
Lighting/Glass/Vision > Mirror > Side > Appearance GO to Pinpoint Test F
Lighting/Glass/Vision > Mirror > Side > Inoperative GO to Pinpoint Test C
Lighting/Glass/Vision > Mirror > Side > Inoperative GO to Pinpoint Test D
Lighting/Glass/Vision > Mirror > Side > Inoperative GO to Pinpoint Test E
Lighting/Glass/Vision > Mirror > Side > Inoperative GO to Pinpoint Test F
Safety and Security > Trailer Towing > Trailer Brake Control > Inoperative GO TO Pinpoint Test O

Symptom Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Symptom Chart - BLIS®


Condition Action
Module Does Not Respond to Diagnostic Scan Tool
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
BLIS ® Inoperative or Does Not Operate Correctly GO to Pinpoint Test A
BLIS ® Has Poor or Intermittent Performance GO to Pinpoint Test A
BLIS ® Message Center Warnings Do Not Display and Outside Mirror BLIS ®/CTA LED Does Not Illuminate GO to Pinpoint Test A
Outside Mirror BLIS®/ CTA LED Always On GO to Pinpoint Test D
Outside Mirror BLIS®/ CTA LED Does Not Illuminate GO to Pinpoint Test F
IPC Message Center Displays Sensor Blocked Message GO to Pinpoint Test G
BLIS ® Cannot Be Turned Off in the Infotainment Display GO to Pinpoint Test H

Symptom Chart - CTA


Condition Action
Module Does Not Respond to Diagnostic Scan Tool
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
CTA System Inoperative or Does Not Operate Correctly GO to Pinpoint Test B
CTA System Has Poor or Intermittent Performance GO to Pinpoint Test B
CTA Message Center Warnings Do Not Display and Outside Mirror BLIS ®/CTA LED Does Not Illuminate GO to Pinpoint Test B
Outside Mirror BLIS®/ CTA LED Does Not Illuminate When CTA Chime Sounds GO to Pinpoint Test B
Outside Mirror BLIS®/ CTA LED Always On GO to Pinpoint Test D
Outside Mirror BLIS®/ CTA LED Does Not Illuminate GO to Pinpoint Test F
IPC Message Center Displays Sensor Blocked Message GO to Pinpoint Test G
CTA System Cannot Be Turned Off in the Infotainment Display GO to Pinpoint Test H

Symptom Chart - Reverse Brake Assist System


Condition Action
Reverse brake assist inoperative or malfunctions GO TO Pinpoint Test O

Pinpoint Tests


DIAGNOSTIC TEST A: BLIS (BLIND SPOT INFORMATION SYSTEM) ® IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

For circuit and connector information, refer to Wiring Diagrams Cell 146.

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

Possible Sources

  • Communication network concern
  • Blockage or Damage to the Rear Bumper Cover Sides
  • Configuration Concerns
  • PDM
  • DDM
  • IPC Concern
  • PCM Concern
  • GWM concern
  • TPM Controller (if equipped)
  • DDM Concern (door module vehicles only)
  • PDM Concern (door module vehicles only)

Visual Inspection and Pre-checks

  • Check the sides of the rear bumper cover for obstructions or damage.
A1 CHECK LEFT (LH) AND RIGHT (RH) OUTSIDE MIRROR BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LIGHT EMITTING DIODE (LED) OPERATION
  • Ignition OFF.
  • Observe the left and right outside mirror BLIS ®/CTA Light Emitting Diodes (LEDs).
  • Start the engine.

Do the left and right outside mirror BLIS ® / CTA Light Emitting Diodes (LEDs) illuminate and turn off after approximately 3 seconds?
Yes GO to A2
No • If one of the LEDs does not work on vehicles without door modules, GO to Pinpoint Test E
• If one of the LEDs does not work on vehicles with door modules, GO to Pinpoint Test F
• If one of the LEDs is always on on vehicles without door modules, GO to Pinpoint Test C
• If any of the LEDs is always on on vehicles with door modules, GO to Pinpoint Test D
• If both LEDs do not work, GO to A5.
A2 CHECK BLIS® (BLIND SPOT INFORMATION SYSTEM) OPERATION
  • Check the operation of the BLIS®.

Is the BLIS® operating correctly?
Yes The concern may have been caused by an intermittent condition, such as poor weather conditions, or by the customer's perception of correct BLIS® operation. CHECK normal system operation with the customer. REFER to Owner's Literature.
No GO to A3
A3 CHECK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) FOR OBSTRUCTIONS
  • Ignition OFF.
  • Inspect the rear side bumper cover for dirt buildup, bumper stickers, or any obstructions.

Are there any obstructions?
Yes CLEAN and REMOVE any obstructions from the rear bumper cover area.
No GO to A4
A4 CHECK REAR BUMPER COVER, SODL (SIDE OBSTACLE DETECTION CONTROL MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) FOR DAMAGE
  • Inspect the rear side bumper cover and the SODL and SODR mounting brackets for damage.

Is there any damage?
Yes REPAIR or INSTALL new components as necessary. REFER to: Rear Bumper Cover (501-19 Bumpers, Removal and Installation).
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).
No GO to A5
A5 CHECK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) PERFORM NETWORK TEST
  • The ignition is on.
  • Using a scan tool, perform the network test.

Do the SODL and SODR pass the network test?
Yes GO to A6
No REFER to the Symptom Chart: Communication Network.
REFER to: Communication Network (418-00 Module Communications Network, Diagnosis and Testing).
A6 CHECK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scan tool, retrieve the continuous memory diagnostic trouble codes (CMDTCs) from the SODL and SODR.

Are any diagnostic trouble codes (DTCs) present?
Yes REFER to the SODL and SODR DTC Chart in this section.
No GO to A7
A7 CHECK MESSAGE CENTER FUNCTIONALITY
  • Make sure the message center and infotainment display are operating correctly.

Is the message center and infotainment display operating correctly?
Yes GO to A8
No REFER to Symptom Chart: Information and Message Center.
Refer to: Instrument Cluster, Message Center and Warning Chimes - Vehicles With: Head-Up Display (HUD) (413-01 Instrument Cluster, Message Center and Warning Chimes, Diagnosis and Testing). REFER to Symptom Chart: Information and Entertainment System.
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information, Diagnosis and Testing).
A8 CHECK BLIS® (BLIND SPOT INFORMATION SYSTEM) ENABLED IN THE INFOTAINMENT DISPLAY
  • NOTE: Make sure the MyKey® is NOT in use. Navigate to the BLIS® menu on the infotainment display and make sure BLIS® is enabled.

Is the BLIS® enabled?
Yes GO to A9
No ENABLE the BLIS®. If the system cannot be enabled, GO to A10.
A9 CHECK TRANSMISSION SHIFT QUALITY
  • Apply the parking brake.
  • While monitoring the backup lamps, move the gear selector lever through the entire range.

Do the backup lamps illuminate only when the vehicle is in REVERSE?
Yes GO to A10
No CHECK the backup lamps.
REFER to: Backup Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
A10 PERFORM PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON ENGINE OFF) SELF-TEST
  • Using the diagnostic scan tool, perform the PCM KOEO self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes REFER to Electronic Engine Controls, PCM DTC Chart. For the procedure, REFER to the appropriate group 303 section.
No GO to A11
A11 CHECK GWM (GATEWAY MODULE A) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scanner, check the GWM continuous memory diagnostic trouble codes (CMDTCs).

Are any diagnostic trouble codes (DTCs) present?
Yes REFER to GWM DTC Chart.
REFER to: Communication Network (418-00 Communication Network, Diagnosis and Testing).
No • For vehicles with door modules, GO to A12.
• For vehicles without door modules, GO to A15.
A12 PERFORM DDM (DRIVER DOOR MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the DDM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes • For DTC B118C:11 or DTC B118C:15, REFER to DDM DTC Chart in this section.
• For all other diagnostic trouble codes (DTCs)
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
No GO to A13
A13 PERFORM PDM (PASSENGER DOOR MODULE) SELF-TEST
  • Using the diagnostic scan tool, perform the PDM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes • For DTC B118D:11 or DTC B118D:15, REFER to PDM DTC Chart in this section.
• For all other diagnostic trouble codes (DTCs)
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
No GO to A14
A14 PERFORM TRM (TRAILER MODULE) SELF-TEST
  • Using the diagnostic scan tool, perform the TRM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Trailer Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
No GO to A15
A15 CHECK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) CONFIGURATION
  • Check the vehicle service history for recent service actions involving the SODL and SODR.

Were any recent service actions performed on the SODL or SODR?
Yes SET the configuration data in the SODL and SODR from the Professional Technician Society (PTS) after the diagnostic scan tool instructions in the Module Programming section > How-To.
No • If the concern is with the SODL, GO to A16.
• If the concern is with the SODR, GO to A17.
A16 CHECK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE, LEFT) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODL connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODL connector. Make sure the connectors are fully seated and locked.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODL. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
A17 CHECK THE SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODR connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODR connector. Make sure the connectors are fully seated and locked.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODR. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
DIAGNOSTIC TEST B: CTA (CROSS TRAFFIC ALERT) SYSTEM IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

For circuit and connector information, refer to Wiring Diagrams Cell 146.

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

Possible Sources

  • Communication network concern
  • Blockage or Damage to the Rear Bumper Cover Sides
  • Configuration Concerns
  • PDM
  • DDM
  • IPC Concern
  • PCM Concern
  • GWM concern
  • PAM concern
  • TPM Controller (if equipped)
  • DDM Concern (door module vehicles only)
  • PDM Concern (door module vehicles only)

Visual Inspection and Pre-checks

  • Make sure the trailer is not electrically connected to the vehicle.
  • Check the sides of the rear bumper cover for obstructions or damage.
B1 CHECK THE LEFT-HAND (LH) AND RIGHT-HAND (RH) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) OUTSIDE MIRROR OPERATION
  • Ignition OFF.
  • Observe the left and right outside mirror BLIS ®/CTA Light Emitting Diodes (LEDs).
  • Start the engine.

Do the left and right outside mirror BLIS ® / CTA Light Emitting Diodes (LEDs) illuminate and turn off after approximately 3 seconds?
Yes GO to B2
No • If one of the LEDs does not work on vehicles without door modules, GO to Pinpoint Test E
• If one of the LEDs does not work on vehicles with door modules, GO to Pinpoint Test F
• If one of the LEDs is always on on vehicles without door modules, GO to Pinpoint Test C
• If any of the LEDs is always on on vehicles with door modules, GO to Pinpoint Test D
• If both LEDs do not work, GO to B5.
B2 CHECK THE CTA (CROSS TRAFFIC ALERT) SYSTEM OPERATION
  • Check the operation of the CTA system.

Does the CTA system operate correctly?
Yes The concern may have been caused by an intermittent condition, such as adverse weather, or by the customer's perception of correct CTA system operation. REVIEW correct system operation with the customer. REFER TO the Owner's Literature.
No GO to B3
B3 CHECK THE SODL (LEFT SIDE OBSTACLE DETECTION CONTROL MODULE) AND SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) OBSTRUCTIONS
  • Ignition OFF.
  • Inspect the rear side bumper cover for dirt buildup, bumper stickers, or any obstructions.

Are there any obstructions?
Yes CLEAN and REMOVE any obstructions from the rear bumper cover area.
No GO to B4
B4 CHECK THE REAR BUMPER FASCIA, SODL (LEFT SIDE OBSTACLE DETECTION CONTROL MODULE) AND SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) FOR DAMAGE
  • Inspect the rear side bumper cover and the SODL and SODR mounting brackets for damage.

Is there any damage?
Yes REPAIR or INSTALL new components as necessary. REFER to: Rear Bumper Cover (501-19 Bumpers, Removal and Installation).
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).
No GO to B5
B5 CHECK THE SODL (LEFT SIDE OBSTACLE DETECTION CONTROL MODULE) AND SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) NETWORK TEST PASS
  • The ignition is on.
  • Using a scan tool, perform the network test.

Do the SODL and SODR pass the network test?
Yes GO to B6
No REFER to the Symptom Chart: Communication Network.
REFER to: Communication Network (418-00 Module Communications Network, Diagnosis and Testing).
B6 CHECK THE SODL (LEFT SIDE OBSTACLE DETECTION CONTROL MODULE) AND SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scan tool, retrieve the continuous memory diagnostic trouble codes (CMDTCs) from the SODL and SODR.

Are any diagnostic trouble codes (DTCs) present?
Yes REFER to the SODL and SODR DTC Chart in this section.
No GO to B7
B7 CHECK MESSAGE CENTER FUNCTIONALITY
  • Make sure the message center and infotainment display are operating correctly.

Is the message center and infotainment display operating correctly?
Yes GO to B8
No REFER TO Symptom Chart: Information and Message Center.
REFER TO: Instrument Cluster, Message Center and Warning Chimes - Vehicles With: Head-Up Display (HUD) (413-01 Instrument Cluster, Message Center and Warning Chimes, Diagnosis and Testing). REFER TO Symptom Chart: Audio/Entertainment System.
REFER TO: Information and Entertainment System (415-00 Information and Entertainment System, General Information, Diagnosis and Testing).
B8 CHECK THE CTA (CROSS TRAFFIC ALERT) ENABLED IN THE INFOTAINMENT UNIT
  • NOTE: Make sure the MyKey® is NOT being used. Navigate to the CTA menu on the infotainment display and make sure the CTA system is enabled.

Is the CTA system enabled?
Yes GO to B9
No ENABLE the CTA system. If the system cannot be enabled, GO to B10.
B9 CHECK TRANSMISSION SHIFT QUALITY
  • Apply the parking brake.
  • Watching the back-up lamps, move the shift lever through the entire range of gears.

Do the backup lamps illuminate only when the vehicle is in REVERSE?
Yes GO to B10
No CHECK the backup lamps.
REFER to: Backup Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
B10 PERFORM PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON ENGINE OFF) SELF-TEST
  • Using the diagnostic scan tool, perform the PCM KOEO self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes CHECK the PCM diagnostic trouble codes (DTCs). REFER TO Electronic Engine Controls, PCM DTC Chart. For the procedure, refer to the appropriate section in Group 303.
No GO to B11
B11 PERFORM PAM (PARK ASSIST MODULE) SELF-TEST
  • Using the scan tool, perform the PAM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes REFER TO the PAM DTC Chart.
REFER TO: Park Aid (413-13B Park Aid - Vehicles With: 180-Degree Camera/360-Degree Camera/Park Aid Camera, Diagnosis and Testing).
No GO to B12
B12 CHECK THE GWM (GATEWAY MODULE A) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scanner, check the GWM continuous memory diagnostic trouble codes (CMDTCs).

Are any diagnostic trouble codes (DTCs) present?
Yes REFER to GWM DTC Chart.
REFER to: Communication Network (418-00 Communication Network, Diagnosis and Testing).
No • For vehicles with door modules, GO to B13
• For vehicles without door modules, GO to B16
B13 PERFORM DDM (DRIVER DOOR MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the DDM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes • For DTC B118C:11 or DTC B118C:15, REFER to DDM DTC Chart in this section.
• For all other diagnostic trouble codes (DTCs)
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
No GO to B14
B14 PERFORM PDM (PASSENGER DOOR MODULE) SELF-TEST
  • Using the diagnostic scan tool, perform the PDM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes • For DTC B118D:11 or DTC B118D:15, REFER to PDM DTC Chart in this section.
• For all other diagnostic trouble codes (DTCs)
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
No GO TO B15
B15 PERFORM TRM (TRAILER MODULE) SELF-TEST
  • Using the diagnostic scan tool, perform the TRM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Trailer Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
No GO TO B16
B16 CHECK THE SODL (LEFT SIDE OBSTACLE DETECTION CONTROL MODULE) AND SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) CONFIGURATION
  • Check the vehicle service history for recent service actions involving the SODL and SODR.

Were any recent service actions performed on the SODL or SODR?
Yes SET the configuration data in the SODL and SODR from the Professional Technician Society (PTS) after the diagnostic scan tool instructions in the Module Programming section > How-To.
No • For a SODL concern, GO to B17
• For a SODR concern, GO to B18.
B17 CHECK THE SODL (LEFT SIDE OBSTACLE DETECTION CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODL connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODL connector. Make sure the connectors are fully seated and locked.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODL. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
B18 CHECK THE SODR (RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODR connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODR connector. Make sure the connectors are fully seated and locked.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODR. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
DIAGNOSTIC TEST C: BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED (LIGHT EMITTING DIODE) IS ALWAYS ON (WITHOUT DOOR MODULES)

For circuit and connector information, refer to Wiring Diagrams Cell 146.

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open This DTC is set in continuous memory and on demand in the SODL when a current draw lower than expected (for example, a short to voltage) is detected on the left-hand outside mirror BLIS ®/ CTA LED output circuit for 500 milliseconds.
SODR B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open This DTC is stored in continuous memory and on demand in the SODR when current draw is lower than expected (for example, a short to voltage) is detected on the RH BLIS®/CTA outside mirror LED output circuit for 500 milliseconds.

Possible Sources

  • Wiring, Terminals or Connectors
  • PDM
  • DDM
C1 CHECK THE BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED (LIGHT EMITTING DIODE) OPERATION
  • Start the engine.
  • Observe the BLIS®/CTA outside mirror LEDs (light emitting diodes) for 10 seconds.

Is the continuous condition still present?
Yes GO to C2
No The system is currently operating correctly. The concern may have been caused by an intermittent condition.
C2 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SODL (SIDE OBSTACLE DETECTION MODULE LH) AND SODR (SIDE OBSTACLE DETECTION MODULE RH) SELF-TEST
  • Using the diagnostic scan tool, perform the SODL and SODR self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes • For DTC B11D6:15, GO to C3.
• For information on all other diagnostic trouble codes (DTCs), REFER to the SODL and SODR DTC chart in this section.
No GO to C3
C3 CHECK THE BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED (LIGHT EMITTING DIODE) POWER CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect: SODL C4369 (LH LED concern).
  • Disconnect: SODR C4370 (RH LED concern).
  • The ignition is on.
  • Action:
    Click to display the connectors

    PDM


    Positive lead Measurement/Action Negative lead
    C4369-4 Ground

    Click to display the connectors

    DDM


    Positive lead Measurement/Action Negative lead
    C4370-4 Ground

Is there voltage present?
Yes REPAIR the circuit.
No • For a LH LED concern, GO to C4
• For a RH LED concern, GO to C5
C4 CHECK THE SODL (SIDE OBSTACLE DETECTION MODULE LH) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODL connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODL connector. Make sure the connector is fully seated and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODL. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin concerns.
C5 CHECK THE SODR (SIDE OBSTACLE DETECTION MODULE RH) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODR connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODR connector. Make sure the connector is fully seated and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODR. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin concerns.
DIAGNOSTIC TEST D: BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED (LIGHT EMITTING DIODE) IS ALWAYS ON (WITH DOOR MODULES)

For circuit and connector information, refer to Wiring Diagrams Cell 146.

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
DDM B118C:15 Left Blind Spot Warning Indicator: Short to Battery or Open This DTC is stored in continuous memory and on demand in the DDM when current draw is lower than expected (for example, a short to voltage) is detected on the LH BLIS®/CTA outside mirror LED output circuit.
PDM B118D:15 Right Blind Spot Warning Indicator: Short to Battery or Open This DTC is stored in continuous memory and on demand in the PDM when current draw is lower than expected (for example, a short to voltage) is detected on the RH BLIS®/CTA outside mirror LED output circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • DDM
  • PDM
D1 CHECK THE BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED OPERATION
  • Start the engine.
  • Observe the BLIS®/CTA outside mirror LEDs (light emitting diodes) for 10 seconds.

Is the continuous condition still present?
Yes If the LH LED is always on, GO to D2
If the RH LED is always on, GO to D4
No The system is currently operating correctly. The concern may have been caused by an intermittent condition.
D2 CHECK THE LH (LEFT-HAND) BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect the DDM C501B.
  • The ignition is on.

Does the BLIS®/CTA LED turn off?
Yes GO to D6
No GO to D3
D3 CHECK FOR A SHORT CIRCUIT BETWEEN THE LH (LEFT-HAND) BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED OUTPUT CIRCUIT AND THE MEMORY POSITION SENSOR POWER CIRCUIT
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C501B-23 C501B-3

Is the resistance greater than 10000 Ohms?
Yes GO to D6
No REPAIR the circuit.
D4 CHECK THE RH (RIGHT-HAND) BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect the PDM C652B.
  • The ignition is on.

Does the BLIS®/CTA LED turn off?
Yes GO to D7
No GO to D5
D5 CHECK FOR A SHORT CIRCUIT BETWEEN THE RH (RIGHT-HAND) BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED OUTPUT CIRCUIT AND THE MEMORY POSITION SENSOR POWER CIRCUIT
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C652B-23 C652B-3

Is the resistance greater than 10000 Ohms?
Yes GO to D7
No REPAIR the circuit.
D6 CHECK THE DDM (DRIVER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DDM connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the DDM connector. Make sure the connector is fully seated and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new DDM. REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
D7 CHECK THE PDM (PASSENGER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the PDM connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the PDM connector. Make sure the connector is fully seated and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new PDM. REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
DIAGNOSTIC TEST E: BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED (LIGHT EMITTING DIODE) IS INOPERATIVE (WITHOUT DOOR MODULES)

For circuit and connector information, refer to Wiring Diagrams Cell 146.

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL B11D6:11 Driver Display Warning LED Indicator: Short to Ground This DTC is stored in continuous memory and on demand in the SODL when current draw is higher than expected (for example, a short to ground) is detected on the LH BLIS®/CTA outside mirror LED output circuit for 2.5 seconds.
SODR B11D6:11 Driver Display Warning LED Indicator: Short to Ground This DTC is stored in continuous memory and on demand in the SODR when current draw is higher than expected (for example, a short to ground) is detected on the RH BLIS®/CTA outside mirror LED output circuit for 2.5 seconds.
SODL B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open This DTC is stored in continuous memory and on demand in the SODL when an open circuit is detected on the LH BLIS®/CTA outside mirror LED output circuit for 2.5 seconds.
SODR B11D6:15 Driver Display Warning LED Indicator: Short to Battery or Open This DTC is stored in continuous memory and on demand in the SODR when an open circuit is detected on the RH BLIS®/CTA outside mirror LED output circuit for 2.5 seconds.

Possible Sources

  • Wiring, Terminals or Connectors
  • Communication network concern
  • Outside Mirror
  • PDM
  • DDM
  • BLIS®/CTA Outside Mirror LED (integrated into the outside mirror glass)
E1 CHECK THE BLIS® (BLIND SPOT INFORMATION SYSTEM)/CTA (CROSS TRAFFIC ALERT) OPERATION
  • Start the engine.
  • Note the left and right outside mirrors. BLIS® / CTA Light Emitting Diodes (LEDs).

Do the LH and RH BLIS®/CTA LEDs turn on and then turn off after 3 seconds?
Yes The system is currently operating correctly. The concern may have been caused by an intermittent fault condition. CHECK the operation of the BLIS® and CTA system.
No GO to E2
E2 CHECK the SODL (Side Obstacle Detection Control Module LH) and SODR (Side Obstacle Detection Control Module RH) PERFORM NETWORK TEST
  • Ignition OFF.
  • The ignition is on.
  • Using a scan tool, perform the network test.

Do the SODL and SODR pass the network test?
Yes GO to E3
No
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
E3 CHECK the DTCs FROM SODL (Side Obstacle Detection Control Module LH) AND SODR (Side Obstacle Detection Control Module RH) SELF-TEST
  • Using the diagnostic scan tool, perform the SODL and SODR self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes For DTC B11D6:11 or DTC B11D6:15 GO to E4
For information on all other Diagnostic Trouble Codes (DTCs), REFER to the SODL and SODR. DTC Chart in this section.
No GO to E5
E4 CHECK THE BLIS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) MIRROR LED (LIGHT EMITTING DIODE) POWER CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: SODL C4369 (LH Mirror LED Harness).
  • Disconnect: SODR C4370 (RH Mirror LED Harness).
  • Action:
    Click to display the connectors

    PDM


    Positive lead Measurement/Action Negative lead
    C4369-4 Ground

    Click to display the connectors

    DDM


    Positive lead Measurement/Action Negative lead
    C4370-4 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to E5
No REPAIR the circuit.
E5 CHECK THE SUSPECTED BLIS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) MIRROR LED (LIGHT EMITTING DIODE) FOR ILLUMINATION
  • Ignition OFF.
  • Disconnect: SODL C4369 (LH Mirror LED Harness).
  • Disconnect: SODR C4370 (RH Mirror LED Harness).
  • Install the fused jumper wire:
    Click to display connectors

    LH Outside Mirror with LED Illumination


    Positive lead Measurement/Action Negative lead
    C4369-5 C4369-4

    Click to display the connectors

    RH Outside Rearview Mirror LED Illumination


    Positive lead Measurement/Action Negative lead
    C4370-5 C4370-4
  • The ignition is on.

Is the corresponding LED illuminated?
Yes REMOVE the fuse jumper. For the LH LED, GO to E11
REMOVE the fuse jumper. For the RH LED, GO to E12
No REMOVE the fuse jumper, GO to E6
E6 CHECK THE MIRROR GLASS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) LED (LIGHT EMITTING DIODE) FOR AN OPEN
  • Ignition OFF.
  • Disconnect: LH BLIS®/CTA VEH C520 (LH Mirror LED Harness).
  • Disconnect: RH BLIS®/CTA VEH C622 (RH Mirror LED Harness).
  • Action:
    Click to display the connectors

    LH Outside Mirror with LED Illumination


    Positive lead Measurement/Action Negative lead
    C520-1 (Component Side) C520-9 (Component Side)

    Click to display the connectors

    RH Outside Rearview Mirror LED Illumination


    Positive lead Measurement/Action Negative lead
    C622-1 (Component Side) C622-9 (Component Side)

Is the resistance less than 2000 Ohms?
Yes GO to E7
No INSTALL a new mirror glass for the mirror in question. REFER TO: Outside Mirror (501-09 Rear View Mirrors, Removal and Installation).
E7 CHECK THE BLIS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) MIRROR LED (LIGHT EMITTING DIODE) POWER CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors

    LH Outside Mirror with LED Illumination


    Positive lead Measurement/Action Negative lead
    C4369-4 C520-1

    Click to display the connectors

    RH Outside Rearview Mirror LED Illumination


    Positive lead Measurement/Action Negative lead
    C4370-4 C622-1

Is the resistance less than 3 ohms?
Yes GO to E9
No GO to E8
E8 CHECK THE OUTSIDE MIRROR FOR AN OPEN
  • Disconnect: LH Outside Mirror C520 (LH Mirror LED Harness).
  • Disconnect: RH Outside Mirror C622 (RH Mirror LED Harness).
  • Action:
    Click to display the connectors

    LH Outside Mirror with LED Illumination


    Positive lead Measurement/Action Negative lead
    C4369-4 C520-1

    Click to display the connectors

    RH Outside Rearview Mirror LED Illumination


    Positive lead Measurement/Action Negative lead
    C4370-4 C622-1

Is the resistance less than 3 ohms?
Yes GO to E13
No REPAIR the circuit.
E9 CHECK THE BLIS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) MIRROR LED (LIGHT EMITTING DIODE) GROUND CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors

    LH Outside Mirror with LED Illumination


    Positive lead Measurement/Action Negative lead
    C520-9 Ground

    Click to display the connectors

    RH Outside Rearview Mirror LED Illumination


    Positive lead Measurement/Action Negative lead
    C622-9 Ground

Is the resistance less than 3 ohms?
Yes • For the LH LED, GO to E11
• For the RH LED, GO to E12
No GO to E10
E10 CHECK THE MIRROR GROUND CIRCUIT FOR AN OPEN
  • Disconnect: LH Outside Mirror C520 (LH Mirror LED Harness).
  • Disconnect: RH Outside Mirror C622 (RH Mirror LED Harness).
  • Action:
    Click to display the connectors

    LH Outside Mirror with LED Illumination


    Positive lead Measurement/Action Negative lead
    C520-9 Ground

    Click to display the connectors

    RH Outside Rearview Mirror LED Illumination


    Positive lead Measurement/Action Negative lead
    C622-9 Ground

Is the resistance less than 3 ohms?
Yes GO to E13
No REPAIR the circuit.
E11 CHECK THE SODL (Side Obstacle Detection Control Module LH) FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect all SODL connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODL connector. Make sure all connectors are properly installed and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODL. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin concerns.
E12 CHECK THE SODR (Side Obstacle Detection Control Module RH) FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect all SODR connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODR connector. Make sure all connectors are properly installed and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODR. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin concerns.
E13 CHECK THE MIRROR JUMPER WIRE HARNESS
  • Inspect the outside mirror jumper harness between the vehicle wiring harness and the mirror glass for:
    • Open circuit or short circuit
    • Damaged or pushed-out pins
    • Corrosion

Is the harness in good condition?
Yes INSTALL a new outside mirror. REFER TO: Outside Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness, if necessary. If the harness cannot be repaired, INSTALL a new outside mirror. REFER TO: Outside Mirror (501-09 Rear View Mirrors, Removal and Installation).
DIAGNOSTIC TEST F: BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) OUTSIDE MIRROR LED (LIGHT EMITTING DIODE) IS INOPERATIVE (WITH DOOR MODULES)

For circuit and connector information, refer to Wiring Diagrams Cell 146.

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
DDM B118C:11 Left Blind Spot Warning Indicator: Short to Ground This DTC is stored in continuous memory and on request in the DDM when higher than expected current consumption is detected on the LH outside mirror BLIS®/CTA LED output circuit.
DDM B118C:15 Left Blind Spot Warning Indicator: Short to Battery or Open This DTC is stored in continuous memory and on request in the DDM when an open circuit is detected on the LH outside mirror BLIS®/CTA LED output circuit.
PDM B118D:11 Right Blind Spot Warning Indicator: Short to Ground This DTC is stored in continuous memory and on request in the PDM when higher than expected current consumption is detected on the RH outside mirror BLIS®/CTA LED output circuit.
PDM B118D:15 Right Blind Spot Warning Indicator: Short to Battery or Open This DTC is stored in continuous memory and on request in the PDM when an open circuit is detected on the RH outside mirror BLIS®/CTA LED output circuit.

Possible Sources

  • Wiring, Terminals or Connectors
  • Communication network concern
  • Outside Mirror
  • PDM
  • DDM
  • DDM
  • PDM
  • BLIS®/CTA Outside Mirror LED (integrated into the outside mirror glass)
F1 CHECK THE BLIS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) OPERATION
  • Start the engine.
  • Note the left and right outside mirrors. BLIS® / CTA Light Emitting Diodes (LEDs).

Do the LH and RH BLIS®/CTA LEDs turn on and then turn off after 3 seconds?
Yes The system is currently operating correctly. The concern may have been caused by an intermittent fault condition. CHECK the operation of the BLIS® and CTA system.
No GO to F2
F2 CHECK the SODL (Side Obstacle Detection Control Module LH) and SODR (Side Obstacle Detection Control Module RH) PERFORM NETWORK TEST
  • Ignition OFF.
  • The ignition is on.
  • Using a scan tool, perform the network test.

Do the SODL and SODR pass the network test?
Yes GO to F3
No REFER to the Symptom Chart: Communication Network.
REFER to: Communication Network (418-00 Module Communications Network, Diagnosis and Testing).
F3 CHECK the DDM (Driver Door Module) and PDM (Passenger Door Module) PERFORM NETWORK TEST
  • Ignition OFF.
  • The ignition is on.
  • Using a scan tool, perform the network test.

Do the DDM and PDM pass the network test?
Yes GO to F4
No REFER to the Symptom Chart: Communication Network.
REFER to: Communication Network (418-00 Module Communications Network, Diagnosis and Testing).
F4 CHECK FOR STORED DIAGNOSTIC TROUBLE CODES (DTCs) IN THE DDM (Driver Door Module) OR PDM (Passenger Door Module) SELF-TEST
  • Using the diagnostic scan tool, perform the DDM (LH LED) or PDM (RH LED) self-test.

Is DDM DTC B118C:11 or PDM DTC B118D:11 present?
Yes • For DTC B118C:11 GO to F5.
• For DTC B118D:11 GO to F10.
No • If the LH BLIS®/CTA LED is not operating, GO to F8
• If the RH BLIS®/CTA LED is not operating, GO to F13
F5 CHECK THE DDM (Driver Door Module) DIAGNOSTIC TROUBLE CODES (DTCs) WITH THE LH (LEFT) BLIS (Blind Spot Information System) ® / CTA (Cross Traffic Alert) LED (LIGHT EMITTING DIODE) DISABLED
  • Using the diagnostic scan tool, clear the DDM diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • The ignition is on.
  • NOTE: DTC B118C:11 may be set at this point. It can be ignored. Using the diagnostic scan tool, perform a DDM self-test.

Is DTC B118C:15 present?
Yes GO to F6
No GO to F7
F6 CHECK THE OUTSIDE MIRROR WIRE HARNESS FOR A SHORT TO GROUND
  • Using the diagnostic scan tool, clear the DDM diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • Disconnect the LH outside mirror C521.
  • The ignition is on.
  • NOTE: DTC B118C:11 may be set at this point. It can be ignored. Using the diagnostic scan tool, perform a DDM self-test.

Is DTC B118C:15 present?
Yes Go to F17.
No REPAIR the circuit.
F7 CHECK THE LH (LEFT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the DDM C501B.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C501B-10 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to F15
No REPAIR the circuit.
F8 CHECK THE DDM (DRIVER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE LH (LEFT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) CIRCUITS SHORTED TOGETHER ON THE LH (LEFT-HAND) OUTSIDE MIRROR
  • Ignition OFF.
  • Disconnect the LH outside mirror C521.
  • Connect a fused jumper wire:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C521-7 C521-9
  • The ignition is on.
  • NOTE: DTC B118C:15 may be set at this point. It can be ignored. Using the diagnostic scan tool, perform a DDM self-test.

Is DTC B118C:11 present?
Yes REMOVE the fuse jumper. GO to F17.
No REMOVE the fuse jumper. GO to F9.
F9 CHECK THE LH (LEFT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) CIRCUITS FOR AN OPEN BETWEEN THE DDM (DRIVER DOOR MODULE) AND THE LH (LEFT-HAND) OUTSIDE MIRROR.
  • Ignition OFF.
  • Disconnect the DDM C501B.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C521-9 C501B-10
    C521-7 C501B-3

Is the resistance less than 3 ohms?
Yes GO to F15
No REPAIR the faulty circuit.
F10 CHECK THE PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE RH (RIGHT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) DISCONNECTED
  • Using the diagnostic scan tool, clear the PDM diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • The ignition is on.
  • NOTE: DTC B118D:11 may be set at this point. It can be ignored. Using the diagnostic scan tool, perform a PDM self-test.

Is DTC B118D:15 present?
Yes GO to F11
No GO to F12
F11 CHECK THE OUTSIDE MIRROR WIRE HARNESS FOR A SHORT TO GROUND
  • Using the diagnostic scan tool, clear the PDM diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • Disconnect the RH outside mirror C601.
  • The ignition is on.
  • NOTE: DTC B118D:11 may be set at this point. It can be ignored. Using the diagnostic scan tool, perform a PDM self-test.

Is DTC B118D:15 present?
Yes Go to F17.
No REPAIR the circuit.
F12 CHECK THE RH (RIGHT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the PDM C652B.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C652B-10 Ground

Is the resistance greater than 10000 Ohms?
Yes Go to F16.
No REPAIR the circuit.
F13 CHECK THE PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE RH (RIGHT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) CIRCUITS SHORTED TOGETHER ON THE LH (LEFT-HAND) OUTSIDE MIRROR
  • Ignition OFF.
  • Disconnect the RH outside mirror C601.
  • Connect a fused jumper wire:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C601-7 C601-9
  • The ignition is on.
  • NOTE: DTC B118D:15 may be set at this point. It can be ignored. Using the diagnostic scan tool, perform a PDM self-test.

Is DTC B118D:11 present?
Yes REMOVE the fuse jumper. INSTALL a new RH outside rearview mirror glass. REFER to: Outside Mirror (501-09 Mirrors, Removal and Installation).
No REMOVE the fuse jumper. GO to F14.
F14 CHECK THE RH (RIGHT-HAND) BLIS (BLIND SPOT INFORMATION SYSTEM) ®/ CTA (CROSS TRAFFIC ALERT) LED (LIGHT EMITTING DIODE) CIRCUITS FOR AN OPEN BETWEEN THE PDM (PASSENGER DOOR MODULE) AND THE RH (RIGHT-HAND) OUTSIDE MIRROR.
  • Ignition OFF.
  • Disconnect the PDM C652B.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C601-9 C652B-10
    C601-7 C652B-3

Is the resistance less than 3 ohms?
Yes GO to F15
No REPAIR the faulty circuit.
F15 CHECK THE DDM (DRIVER DOOR MODULE) FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect all DDM connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the DDM connector. Make sure all connectors are properly seated and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new DDM. REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
F16 CHECK THE PDM (PASSENGER DOOR MODULE) FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PDM connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the PDM connector. Make sure all connectors are properly seated and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new PDM. REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
F17 CHECK THE OUTSIDE MIRROR JUMPER WIRE HARNESS
  • Inspect the outside mirror jumper harness between the vehicle wiring harness and the mirror glass for:
    • Open circuit or short circuit
    • Damaged or pushed-out pins
    • Corrosion

Is the harness in good condition?
Yes INSTALL a new outside mirror. REFER TO: Outside Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the harness, if necessary. If the harness cannot be repaired, INSTALL a new outside mirror. REFER TO: Outside Mirror (501-09 Rear View Mirrors, Removal and Installation).
DIAGNOSTIC TEST G: IPC (INSTRUMENT PANEL CLUSTER) MESSAGE CENTER DISPLAYS SENSOR BLOCKED MESSAGE

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

Possible Sources

  • Dirt or debris buildup on the sides of the rear bumper cover
  • Damaged rear bumper cover
  • PDM
  • DDM
G1 CHECK THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) FOR DEBRIS, DIRT, SNOW OR ICE
  • Inspect the rear bumper cover, SODL and SODR for debris, dirt, snow or ice.

Is the rear bumper cover, SODL or SODR blocked by debris, dirt, snow or ice?
Yes REMOVE and CLEAN the damaged component(s). Once the repair is complete, PERFORM one ignition cycle and DRIVE the vehicle. The SODL and SODR must detect 2 good targets while the vehicle is driven to clear the blocked condition.
No GO to G2
G2 CHECK THE REAR BUMPER COVER, SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) FOR DAMAGE
  • Thoroughly inspect the rear bumper cover, SODL, SODR and the SODL and SODR mounting brackets for damage.

Is there any damage?
Yes REPAIR or INSTALL new components as necessary. REFER to: Rear Bumper Cover (501-19 Bumpers, Removal and Installation).
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).
No • For a concern with the SODL, GO to G3.
• For a concern with the SODR, GO to G4.
G3 CHECK THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect all SODL connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODL connector. Make sure all connectors are properly installed and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODL. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
G4 CHECK THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect all SODR connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the SODR connector. Make sure all connectors are properly installed and latched.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new SODR. REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Vision Systems, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin concerns.
DIAGNOSTIC TEST H: BLIS (BLIND SPOT INFORMATION SYSTEM) ® AND CTA (CROSS TRAFFIC ALERT) SYSTEM CANNOT BE TURNED OFF IN THE INFOTAINMENT DISPLAY

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

Possible Sources

  • MyKey® in Use
  • Communication network concern
  • Message Center
  • GWM concern
  • Information and entertainment display concern
  • SODR concern
  • SODL concern

Visual Inspection and Pre-checks

  • Determine whether a MyKey® restricted key is being used. If a restricted key is used, the BLIS® or CTA system cannot be disabled in the information and entertainment display.
H1 CHECK IF A MYKEY® RESTRICTED KEY IS BEING USED
  • Check whether a MyKey® restricted key is being used.

Is a MyKey® restricted key being used?
Yes The system is currently operating correctly. INFORM the customer that the system is operating normally. REFER to the Owner's Literature.
No GO to H2
H2 NETWORK TEST
  • The ignition is on.
  • Using a scan tool, perform the network test.

Do the IPC, GWM, SODL, SODR and APIM pass the network test?
Yes GO to H3
No REFER to the Symptom Chart: Communication Network.
REFER to: Communication Network (418-00 Module Communications Network, Diagnosis and Testing).
H3 CHECK THE GWM (GATEWAY MODULE A) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scanner, check the GWM continuous memory diagnostic trouble codes (CMDTCs).

Are any diagnostic trouble codes (DTCs) present?
Yes REFER to GWM DTC Chart.
REFER to: Communication Network (418-00 Communication Network, Diagnosis and Testing).
No GO to H4
H4 CHECK DIAGNOSTIC TROUBLE CODES (DTCS) FROM SODL (LEFT SIDE OBJECT DETECTION MODULE) AND SODR (RIGHT SIDE OBJECT DETECTION MODULE) SELF-TEST
  • Using the diagnostic scan tool, perform a self-test of the SODL, SODR and APIM.

Are any diagnostic trouble codes (DTCs) present?
Yes Refer to SODL, SODR and APIM DTC Chart in this section.
No GO to H5
H5 CHECK INFOTAINMENT DISPLAY FOR CORRECT OPERATION
  • Check the infotainment display driver assist menu for correct operation when turning the BLIS ® and CTA systems on and off.

Does the infotainment display driver assist menu operate correctly?
Yes At this time the system is operating correctly. The concern may have been caused by an intermittent condition.
No Refer to Symptom Chart: Infotainment System.
REFER TO: Infotainment System (415-00 Infotainment System - General Information, Diagnosis and Testing).
DIAGNOSTIC TEST I: MODULE COMMUNICATION LOST (SUBTYPE INFORMATION MISSING)

Normal Operation and Fault Symptoms

REFER TO: Communication Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL U0100:00 Lost Communication with ECM/PCM 'A': No Sub Type Information Continuous memory DTC set in the SODL when messages from the PCM over HS-CAN1 through the GWM are not received for 3 seconds or more.
SODR U0100:00 Lost Communication with ECM/PCM 'A': No Sub Type Information Continuous memory DTC set in the SODR when messages from the PCM over HS-CAN1 through the GWM are not received for 3 seconds or more.
SODL U0101:00 Lost Communication with TCM: No Sub Type Information Continuous memory DTC set in the SODL when messages from the PCM over HS-CAN1 through the GWM are not received for 3 seconds or more.
SODR U0101:00 Lost Communication with TCM: No Sub Type Information Continuous memory DTC set in the SODR when messages from the PCM over HS-CAN1 through the GWM are not received for 3 seconds or more.
SODL U0121:00 Lost Communication with Anti-Lock Brake System (ABS) Control Module 'A': No Sub-type Information Continuous memory DTC set in the SODL when ABS messages from the ABS module over HS-CAN through the BCM are not received for 2 seconds or more.
SODR U0121:00 Lost Communication with Anti-Lock Brake System (ABS) Control Module 'A': No Sub-type Information Continuous memory DTC set in the SODR when ABS messages from the ABS module over HS-CAN through the BCM are not received for 2 seconds or more.
SODL U0140:00 Lost Communication With Body Control Module: No Sub Type Information Continuous memory DTC set in the SODL when data messages from the BCM over MS-CAN are not received for 2 seconds or more.
SODR U0140:00 Lost Communication With Body Control Module: No Sub Type Information Continuous memory DTC set in the SODR when data messages from the BCM over MS-CAN are not received for 2 seconds or more.
SODL U0146:00 Lost Communication with Serial Data Gateway 'A': No Sub Type Information Continuous memory DTC set in the SODL when messages received through the GWM are not received for 3 seconds or more.
SODR U0146:00 Lost Communication with Serial Data Gateway 'A': No Sub Type Information Continuous memory DTC set in the SODR when messages received through the GWM are not received for 3 seconds or more.
SODL U0151:00 Lost Communication with Restraints Control Module: No Sub Type Information Set in continuous memory when the SODL detects that messages from the RCM are not received for more than 5 seconds.
SODR U0151:00 Lost Communication with Restraints Control Module: No Sub Type Information Set in continuous memory when the SODR detects that messages from the RCM are not received for more than 5 seconds.
SODL U0155:00 Lost Communication with Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Set in continuous memory when the SODL detects that network messages from the IPC are not received for more than 5 seconds.
SODR U0155:00 Lost Communication with Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Set in continuous memory when the SODR detects that network messages from the IPC are not received for more than 5 seconds.
SODL U0199:00 Lost Communication with Door A Control Module: No Sub Type Information Continuous memory DTC set in the SODL when expected messages from the DDM are not received for 3 seconds or more.
SODR U0200:00 Lost Communication with Door B Control Module: No Sub Type Information Continuous memory DTC set in the SODR when expected messages from the PDM are not received for 3 seconds or more.
SODL U0232:00 Communication Lost with Blind Spot Detection Control Module A: No Sub Type Information Set in continuous memory when the SODL detects network messages are not received from the SODR for more than 3 seconds with the ignition on.
SODR U0233:00 Communication Lost with Blind Spot Detection Control Module B: No Sub Type Information Set in continuous memory when the SODR detects network messages are not received from the SODL for more than 3 seconds with the ignition on.

Possible Sources

  • Communication network concern
  • Battery Voltage Concern
  • GWM
  • CAN module malfunction, determined by setting a loss of communication DTC
  • PDM
  • DDM
I1 VERIFY CUSTOMER CONCERN
  • The ignition is on.
  • Check for the observed symptom.

Is the observed symptom present?
Yes GO to I2.
No CLEAR the diagnostic trouble code.
At this time the system is operating correctly. The diagnostic trouble code may have been set due to high network traffic or an intermittent condition.
I2 CHECK THE COMMUNICATION NETWORK
  • Using a scan tool, perform the network test.

Do all modules pass the network test?
Yes GO to I3
No
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
I3 CHECK SODL (LEFT SIDE OBJECT DETECTION MODULE) AND SODR (RIGHT SIDE OBJECT DETECTION MODULE) CMDTC (CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODE)
  • Using the diagnostic scan tool, perform a self-test of the SODL and SODR.
  • Clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the self-test of the SODL and SODR.

Are there any non-network diagnostic trouble codes (DTCs)?
Yes CHECK all non-network diagnostic trouble codes (DTCs). REFER TO SODL and SODR DTC Chart in this section.
No GO to I4
I4 PERFORM SELF-TEST
  • Determine which loss of communication diagnostic trouble codes (DTCs) are set during the SODL and SODR self-test.
  • Using the diagnostic scan tool, perform a self-test for the modules that set the loss of communication DTCs in the SODL and SODR.

Are there any non-network diagnostic trouble codes (DTCs)?
Yes Refer to the Powertrain Diagnostic Trouble Code Index.
No GO to I5
I5 CHECK GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scanner, check the GWM continuous memory diagnostic trouble codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
No GO to I6
I6 RECHECK SODL (LEFT SIDE OBJECT DETECTION MODULE) AND SODR (RIGHT SIDE OBJECT DETECTION MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, clear the SODL and SODR diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • The ignition is on.
  • Wait 10 seconds.
  • Using a scan tool, perform a continuous memory self-test.
  • Check the SODL and SODR diagnostic trouble codes (DTCs).

Are any loss of communication diagnostic trouble codes (DTCs) present?
Yes GO to I7
No The system is currently operating correctly. This DTC may have been set due to high network traffic or an intermittent fault.
I7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERNS
  • CHECK the vehicle service history for recent service actions related to the module(s) in question, GWM, SODL or SODR. If recent service history is found:
    • make sure the correct replacement module was installed
      • Vehicle component assembly may be used to verify correct component installation.
    • make sure the replacement module configuration was correct
      • reconfigure the module using the original data if the previous configuration is suspected
    • make sure the module was not obtained from a similar vehicle and installed on the customer's vehicle
      • Reinstall the replaced module in the original vehicle and obtain a new replacement module.
  • Operate the system and determine whether the observed symptom persists.

Is the observed symptom still present?
Yes GO to I8
No The system is currently operating correctly. The concern may have been caused by incorrect part replacement procedures or incorrect module configuration.
I8 CHECK THE CHECKED MODULE FOR PROPER OPERATION
  • Ignition OFF.
  • Disconnect and inspect the module connector(s).
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • backed-out pins - install new pins as necessary
  • Reconnect the module connector(s). Make sure they are properly seated and locked.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK in OASIS for any applicable TSB, GSB, SSM or FSA service articles. If a service article exists for this concern, STOP this test and FOLLOW the service article instructions. If no service article resolves this concern, INSTALL a new module in question. REFER TO the appropriate Removal and Installation procedure.
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin concerns.
DIAGNOSTIC TEST J: DTCs (DIAGNOSTIC TROUBLE CODES) U0232:87, U0233:87

Normal Operation and Fault Symptoms

SODL and SODR communicate over CAN. If messages are missing or not received from SODL or SODR, functions such as the blind spot detection side setting or warning chimes may operate incorrectly.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL U0232:87 Communication Lost with Side Obstacle Detection Control Module A: Message Missing Set in continuous memory when the SODL detects network messages are not received from the SODR for more than 3 seconds with the ignition on.
SODR U0233:87 Communication Lost with Side Obstacle Detection Control Module B: Message Missing Set in continuous memory when the SODR detects network messages are not received from the SODL for more than 3 seconds with the ignition on.

Possible Sources

  • Network communication fault
  • GWM
  • PDM
  • DDM
J1 CONFIRM THE CONCERN
  • The ignition is on.
  • Make sure the observed symptom is present.

Is the observed symptom present?
Yes GO to J2
No CLEAR the DTC. The system is currently operating correctly. The DTC may have been set due to high network traffic or an intermittent fault condition.
J2 CHECK THE COMMUNICATION NETWORK
  • Using the diagnostic scan tool, perform the network test.

Do the SODL and SODR pass the network test?
Yes GO to J3
No
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
J3 CHECK SODL (SIDE OBSTACLE DETECTION MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION MODULE, RH) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scan tool, perform a self-test of the SODL and SODR.
  • Clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the self-test of the SODL and SODR.

Are there any non-network diagnostic trouble codes (DTCs)?
Yes CHECK all non-network diagnostic trouble codes (DTCs). REFER TO the IPMA DTC Chart in this section.
No GO to J4
J4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scanner, check the GWM continuous memory diagnostic trouble codes (CMDTCs).

Are there any non-network diagnostic trouble codes (DTCs)?
Yes
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
No GO to J5
J5 RECHECK SODL (SIDE OBSTACLE DETECTION MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION MODULE, RH) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, clear the SODL and SODR diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • The ignition is on.
  • Wait 10 seconds.
  • Using a scan tool, perform a continuous memory self-test.
  • Check the SODL and SODR diagnostic trouble codes (DTCs).

Are any loss of communication diagnostic trouble codes (DTCs) present?
Yes GO to J6
No The system is currently operating correctly. The DTC may have been set due to high network traffic or an intermittent fault.
J6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION PROBLEMS
  • Check the vehicle service history for recent service actions related to the GWM, SODL or SODR. If recent service history is found:
    • make sure the correct replacement module was installed
      • Use the vehicle parts list to verify that parts were installed correctly.
    • make sure the replacement module configuration was correct
      • reconfigure the module using the original data if the previous configuration is suspected
    • Make sure the module was not obtained from a similar vehicle and was not installed in the vehicle in error.
      • Reinstall the replaced module in the original vehicle and obtain a new replacement module.
  • Operate the system and determine whether the observed symptom persists.

Is the observed symptom still present?
Yes GO to J7
No The system is currently operating correctly. The concern may have been caused by incorrect part replacement procedures or incorrect module configuration.
J7 CHECK SODL (SIDE OBSTACLE DETECTION MODULE, LEFT) AND SODR (SIDE OBSTACLE DETECTION MODULE, RH) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SODL connector.
  • Disconnect and inspect the SODR connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean the module contacts)
    • damaged or bent pins - install new terminal pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SODL and SODR connectors. Make sure that the connector is fully seated and locked.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this condition, STOP this test and FOLLOW the service article instructions. If there are no service articles to resolve this condition, INSTALL a new SODL or SODR. REFER TO: Side Obstacle Detection Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal issues.
DIAGNOSTIC TEST K: INVALID DATA RECEIVED

Normal Operation and Fault Symptoms

When a module receives invalid network data from another module with a faulty input, the invalid data DTC is set.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL U0401:86 Incorrect Data Received from ECM/PCM 'A': Incorrect Signal This continuous memory DTC is set when SODL receives invalid network data from the PCM. RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. If there are no PCM DTCs, DIAGNOSE the observed symptom.
SODR U0401:86 Incorrect Data Received from ECM/PCM 'A': Incorrect Signal This continuous memory DTC is set when SODR receives invalid network data from the PCM. RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. If there are no PCM DTCs, DIAGNOSE the observed symptom.
SODL U0402:86 Invalid data received from TCM: invalid signal This continuous memory DTC is set when SODL receives invalid transmission range network data from the TCM. RETRIEVE and REPAIR all non-network DTCs in the TCM and other modules on the network. If there are no TCM DTCs, DIAGNOSE the observed symptom.
SODR U0402:86 Invalid data received from TCM: invalid signal This continuous memory DTC is set when SODR receives invalid transmission range network data from the TCM. RETRIEVE and REPAIR all non-network DTCs in the TCM and other modules on the network. If there are no TCM DTCs, DIAGNOSE the observed symptom.
SODL U0415:86 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module A: Invalid Signal This continuous memory DTC is set when SODL receives invalid network data from the ABS. RETRIEVE and REPAIR all non-network DTCs in the ABS and other modules on the network. If there are no ABS DTCs, CHECK the observed symptom.
SODR U0415:86 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module A: Invalid Signal This continuous memory DTC is set when SODR receives invalid network data from the ABS. RETRIEVE and REPAIR all non-network DTCs in the ABS and other modules on the network. If there are no ABS DTCs, CHECK the observed symptom.
SODL U049A:86 Invalid Data Received from Door Control Module A: Invalid Signal This continuous memory DTC is set when SODL receives invalid network data from the DDM. RETRIEVE and REPAIR all non-network DTCs in the DDM and other modules on the network. If there are no DDM DTCs, CHECK the observed symptom.
SODR U0501:86 Invalid Data Received from Door Control Module B: Invalid Signal This continuous memory DTC is set when SODR receives invalid network data from the PDM. RETRIEVE and REPAIR all non-network DTCs in the PDM and other modules on the network. If there are no PDM DTCs, CHECK the observed symptom.

Possible Sources

  • Invalid Signal Input from Another Module
  • Suspect module
K1 CHECK DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA
  • The ignition is on.
  • Using the diagnostic scan tool, perform a self-test of the module in question that is sending invalid data.

Are any diagnostic trouble codes (DTCs) present from the module sending invalid data?
Yes CHECK the module sending invalid data. REFER to the appropriate section in the Workshop Manual.
No DIAGNOSE the observed symptom. REFER to the appropriate symptom chart in this section.
DIAGNOSTIC TEST L: DTCs (DIAGNOSTIC TROUBLE CODES) U0533:62, U0534:62

Normal Operation and Fault Symptoms

Refer to: Blind Spot Information System - System Operation and Component Description (419-04 Side and Rear View, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL U0533:62 Invalid Data Received from Side Obstacle Detection Control Module A: Signal Comparison Failure This DTC is set when the VIN stored in the SODL does not match the VIN determined in the BCM. This may indicate that the original SODL is not installed in the vehicle or is incorrectly configured. PERFORM PMI (when the original module is not available) for the module in question as directed by the diagnostic scan tool.
SODR U0534:62 Invalid Data Received from Side Obstacle Detection Control Module B: Signal Comparison Failure This DTC is set when the VIN stored in the SODR does not match the VIN determined in the BCM. This may indicate that the original SODR is not installed in the vehicle or is incorrectly configured. PERFORM PMI (when the original module is not available) for the module in question as directed by the diagnostic scan tool.

Possible Sources

  • VIN Mismatch
Diagnostic steps are not provided for this symptom or diagnostic trouble code. REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).
DIAGNOSTIC TEST M: DTCs (DIAGNOSTIC TROUBLE CODES) U2100:00, U2101:00, U2300:55

Normal Operation and Fault Symptoms

If the replacement module is incorrectly configured or not configured, the incomplete configuration DTC is set.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL (21:00) Initial Configuration Not Complete: No Sub Type Information This continuous memory DTC sets due to incomplete or incorrect SODL PMI procedure. CHECK the vehicle service history for recent service actions involving this module. If there has been a recent service action with this module, INSTALL as-built data.
REFER TO: Module Configuration - System Operation and Component Description (418-01 Module Configuration, Description and Operation).
If there has been no recent service action, INSTALL a new module to correct the configuration data storage error.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODR U2100:00 Initial Configuration Not Complete: No Sub Type Information This continuous memory DTC sets due to incomplete or incorrect SODR PMI procedure. CHECK the vehicle service history for recent service actions involving this module. If there has been a recent service action with this module, INSTALL as-built data.
REFER TO: Module Configuration - System Operation and Component Description (418-01 Module Configuration, Description and Operation).
If there has been no recent service action, INSTALL a new module to correct the configuration data storage error.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODL (21:00) Control Module Configuration Incompatible: No Sub Type Information This continuous memory DTC sets due to incomplete or incorrect SODL PMI procedure. CHECK the vehicle service history for recent service actions involving this module. If there has been a recent service action with this module, INSTALL as-built data.
REFER TO: Module Configuration - System Operation and Component Description (418-01 Module Configuration, Description and Operation).
SODR (21:00) Control Module Configuration Incompatible: No Sub Type Information This continuous memory DTC sets due to incomplete or incorrect SODR PMI procedure. CHECK the vehicle service history for recent service actions involving this module. If there has been a recent service action with this module, INSTALL as-built data.
REFER TO: Module Configuration - System Operation and Component Description (418-01 Module Configuration, Description and Operation).
SODL U2300:55 Central configuration: not configured This continuous memory DTC sets when the SODL does not detect VIN information on the MS-CAN. GET and REPAIR all non-network DTCs in all other modules.
SODR U2300:55 Central configuration: not configured This continuous memory DTC sets when the SODR does not detect VIN information on the MS-CAN. GET and REPAIR all non-network DTCs in all other modules.
SODL U3002:62 Vehicle Identification Number: Signal Comparison Failure This DTC sets when the VIN stored in the SODL does not match the VIN broadcast on the network. CHECK the vehicle service history for recent service actions involving this module. If there have been recent service actions with this module, REPEAT the PMI procedure as directed by the diagnostic scan tool.
REFER TO: Module Configuration - System Operation and Component Description (418-01 Module Configuration, Description and Operation).
If there has been no recent service action, INSTALL a new module to correct the configuration data storage error.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODR U3002:62 Vehicle Identification Number: Signal Comparison Failure This DTC sets when the VIN stored in the SODR does not match the VIN broadcast on the network. CHECK the vehicle service history for recent service actions involving this module. If there have been recent service actions with this module, REPEAT the PMI procedure as directed by the diagnostic scan tool.
REFER TO: Module Configuration - System Operation and Component Description (418-01 Module Configuration, Description and Operation).
If there has been no recent service action, INSTALL a new module to correct the configuration data storage error.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).

Possible Sources

  • Incomplete or incorrect PMI procedures.
Diagnostic steps are not provided for this symptom or diagnostic trouble code. REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).
DIAGNOSTIC TEST N: U3000:44, U3000:45, U3000:46, U3000:49

Normal Operation and Fault Symptoms

The SODL and SODR set a module malfunction DTC when an internal fault is detected.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
SODL U3000:44 Control Module: Data Memory Failure Sets when the SODL detects an internal fault. CLEAR the SODL DTCs and REPEAT the self-test. If continuous memory or on-demand DTC U3000:44 returns, INSTALL a new SODL.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODR U3000:44 Control Module: Data Memory Failure Sets when the SODR detects an internal fault. CLEAR the SODR DTCs and REPEAT the self-test. If continuous memory or on-demand DTC U3000:44 returns, INSTALL a new SODR.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODL U3000:45 Control module: software memory failure Sets when the SODL detects an internal fault. CLEAR the SODL DTCs and REPEAT the self-test. If continuous memory or on-demand DTC U3000:45 returns, INSTALL a new SODL.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODR U3000:45 Control module: software memory failure Sets when the SODR detects an internal fault. CLEAR the SODR DTCs and REPEAT the self-test. If continuous memory or on-demand DTC U3000:45 returns, INSTALL a new SODR.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODL U3000:46 Control module: calibration/parameter memory failure Sets when the SODL detects an internal fault. CLEAR the SODL DTCs and REPEAT the self-test. If continuous memory or on-demand DTC U3000:46 returns, INSTALL a new SODL.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODR U3000:46 Control module: calibration/parameter memory failure Set when the SODR detects an internal fault. CLEAR the SODR DTCs and REPEAT the self-test. If DTC U3000:46 returns as continuous memory or on demand, INSTALL a new SODR.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODL U3000:49 Control Module: Internal Electronic Failure Set when the SODL detects an internal fault. CLEAR the SODL DTCs and REPEAT the self-test. If DTC U3000:49 returns as continuous memory or on demand, INSTALL a new SODL.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).
SODR U3000:49 Control Module: Internal Electronic Failure Set when the SODR detects an internal fault. CLEAR the SODR DTCs and REPEAT the self-test. If DTC U3000:49 returns as continuous memory or on demand, INSTALL a new SODR.
REFER TO: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear View Camera, Removal and Installation).

Possible Sources

  • PDM
  • DDM
Diagnostic steps are not provided for this symptom or diagnostic trouble code. REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).
DIAGNOSTIC TEST O: REVERSE BRAKE ASSIST DEVICE IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Normal Operation and Fault Symptoms

The Traction Control System, TCS, and the Active Park Assist function must be enabled for the Reverse Brake Assist function to be operational. All vehicle doors must be closed.

Possible Sources

  • Communication Problem
  • Park Assist System Concern
  • ABS system concern
  • Doors open
  • Traction control off
  • Park assist system off
  • CTA system off
  • Trailer connected
  • Dirty rear park assist camera
O1 CHECK THE REVERSE BRAKE ASSIST DEVICE FOR CORRECT OPERATION
  • Make sure the message center displays a Reverse Brake Assist unavailable warning.
  • Possible cause:
    • Make sure the Reverse Brake Assist function is activated.
    • Check the vehicle service history if the vehicle was recently serviced when the battery may have been disconnected.
    • Check if this is a new vehicle
    • Check if the traction control system is enabled
    • Make sure the active park assist function is enabled.
    • Make sure the CTA is enabled in the message center
  • Repair:
    • Drive the vehicle straight on a level/smooth road above 50 km/h with minimal steering wheel input for 30 seconds.
    • Turn on the traction control switch
    • Enable the active park assist function. If the system cannot be activated, REFER TO the symptom chart in this section.
    • ACTIVATE THE CTA. If the system cannot be activated,
      REFER TO: Blind Spot Information System (419-04 Side and Rear View Camera, Diagnosis and Testing).
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes GO to O2
No The system is currently operating correctly
O2 CHECK FOR BLIS (BLIND SPOT INFORMATION SYSTEM), PCM (POWERTRAIN CONTROL MODULE), IPMB (IMAGE PROCESSING MODULE B), ABS (ANTI-LOCK BRAKE SYSTEM) AND BCM (BODY CONTROL MODULE) DTCs
  • Check the BLIS, PCM, IPMB, ABS and BCM. DTCs are present.
  • Using the diagnostic scanner, perform a self-test of the BLIS, PCM, IPMB, ABS and BCM.

Are DTCs present in any of these modules?
Yes Diagnose all DTCs for the module in question.
No GO to O3
O3 CLEAN THE REAR PARK ASSIST CAMERA LENS AND REAR PARK ASSIST SENSORS
  • Clean and make sure there is no debris on the rear view camera lens and the rear park assist sensors.
  • The ignition is on.
  • Check the Reverse Brake Assist system for correct operation.

Is the concern still present?
Yes GO to O4
No The system is currently operating correctly. The concern may have been caused by dirt or debris on the camera lens or rear park assist sensors.
O4 CHECK THE PARK ASSIST SYSTEM AND ABS (ANTI-LOCK BRAKE SYSTEM) OPERATION
  • Make sure that the Park Assist and ABS systems operate correctly.

Are the rear park assist sensors and ABS systems operating correctly?
Yes The system is currently operating normally.
No For the park assist system,
REFER TO: Park Assist System (413-13A Park Assist System - Vehicles With: Rear Park Assist System, Diagnosis and Testing). For the ABS system concern,
REFER TO: Anti-Lock Brake System (ABS) and Stability Control System (206-09 Anti-Lock Brake System (ABS) and Stability Control System, Diagnosis and Testing).

Test yourself

A quick Ford Escape quiz: every answer comes with an explanation and a link to the manual page.