Ford Escape Quiz
Electrical

Diagnosis and Testing - Parking Aid System

In this manual: Electrical
General Information — 26Chassis — 160Powertrain — 323Electrical — 356Body and Paint — 290
~48min 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).


Diagnostic Trouble Code Chart


Module Trouble Code Description Action
PAM B129E:13 On/Off Switch - Semi-Automatic Enhanced Parallel Parking: Circuit Open GO to Pinpoint Test H
PAM B129E:9E On/Off Switch - Semi-Automatic Enhanced Parallel Parking: Stuck On GO to Pinpoint Test H
PAM B129K:08 Left Front Side Sensor: Bus Signal/Message Failure GO to Pinpoint Test A
PAM B129C:31 Left Front Side Sensor: No Signal GO to Pinpoint Test A
PAM B129K:64 Left Front Side Sensor: Signal Implausible GO to Pinpoint Test A
PAM B129K:96 Left Front Side Sensor: Internal Component Failure GO to Pinpoint Test E
PAM B129K:98 Left Front Side Sensor: Component or System Overtemperature GO to Pinpoint Test F
PAM B129D:08 Right Front Side Sensor: Bus Signal/Message Failure GO to Pinpoint Test B
PAM B129D: 31 Right Front Side Sensor: No Signal GO to Pinpoint Test B
PAM B129D: 64 Right Front Side Sensor: Signal Implausible GO to Pinpoint Test B
PAM B129D: 96 Right Front Side Sensor: Internal Component Failure GO to Pinpoint Test E
PAM B129D: 98 Right Front Side Sensor: Component or System Overtemperature GO to Pinpoint Test F
PAM B13F3:08 Left Rear Side Sensor: Bus Signal/Message Failure GO to Pinpoint Test C
PAM B13F3:31 Left Rear Side Sensor: No Signal GO to Pinpoint Test C
PAM B13F3:64 Left Rear Side Sensor: Signal Implausible GO to Pinpoint Test C
PAM B13F3:96 Left Rear Side Sensor: Internal Component Failure GO to Pinpoint Test G
PAM B13F3:98 Left Rear Side Sensor: Component or System Overtemperature GO to Pinpoint Test F
PAM B13F4:08 Right Rear Side Sensor: Bus Signal/Message Failure GO to Pinpoint Test D
PAM B13F4:31 Right Rear Side Sensor: No Signal GO to Pinpoint Test D
PAM B13F4:64 Right Rear Side Sensor: Signal Implausible GO to Pinpoint Test D
PAM B13F4:96 Right Rear Side Sensor: Internal Component Failure GO to Pinpoint Test G
PAM B13F4:98 Right Rear Side Sensor: Component or System Overtemperature GO to Pinpoint Test F

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 > Park Assist > Control > Inoperative GO to Pinpoint Test H
Driver Assistance and Information > Park Assist > Control > Inoperative GO to Pinpoint Test I
Driver Assistance and Information > Park Assist > Control > Inoperative GO to Pinpoint Test J
Driver Assistance and Information > Park Assist > Control > Inoperative GO to Pinpoint Test M
Driver Assistance and Information > Park Assist > Control > Inoperative GO to Pinpoint Test N
Driver Assistance and Information > Park Assist > Performance > Inaccurate GO to Pinpoint Test K
Driver Assistance and Information > Park Assist > Performance > Inaccurate GO to Pinpoint Test L
Driver Assistance and Information > Park Assist > Performance > Inaccurate GO to Pinpoint Test M
Driver Assistance and Information > Park Assist > Performance > Inoperative GO to Pinpoint Test H
Driver Assistance and Information > Park Assist > Performance > Inoperative GO to Pinpoint Test I
Driver Assistance and Information > Park Assist > Performance > Inoperative GO to Pinpoint Test J
Driver Assistance and Information > Park Assist > Performance > Inoperative GO to Pinpoint Test L
Driver Assistance and Information > Park Assist > Performance > Inoperative GO to Pinpoint Test M
Driver Assistance and Information > Park Assist > Performance > Inoperative GO to Pinpoint Test N

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: Active Park Assist System


Condition Action
Module does not communicate with the diagnostic scan tool
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
Active Park Assist does not engage when the Active Park Assist switch is pressed GO to Pinpoint Test H
A message about Active Park Assist is displayed on the CenterStack information display and/or the IPC message center display. GO to Pinpoint Test I
The CenterStack information display shows a message that Active Park Assist is unavailable. GO to Pinpoint Test J
Active Park Assist does not correctly position the vehicle. GO to Pinpoint Test K
Active Park Assist does not offer available parking spaces. GO to Pinpoint Test L
The CenterStack information display shows POA UNAVAILABLE when the turn signal is used during parallel park assist. GO to Pinpoint Test M
Active Park Assist does not offer the parallel park assist function. GO to Pinpoint Test N

Pinpoint Test(s)


DIAGNOSTIC PINPOINT TEST A: B129C:08

For circuit and connector information, refer to Wiring Diagrams Cell 145.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B129C:08 Left Front Side Sensor: Bus Signal/Message Failures Continuous on-demand DTC that is set in the PAM when there is a message error on the LIN for the left front parking aid sensor.
PAM B129C:31 Left Front Side Sensor: No Signal Continuous on-demand DTC that is set in the PAM when no signal is received on the LIN for the LHF active parking aid sensor.
PAM B129C:64 Left Front Side Sensor: Signal Implausible Continuous on-demand DTC that is set in the PAM when the LHF active parking aid sensor does not respond.

Possible Sources

  • Wiring, Terminals or Connectors
  • Left Front Active Parking Aid Sensor
  • PAM
A1 CHECK THE PAM (PARKING AID MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SELF-TEST
  • The ignition is on.
  • Using the scan tool, perform the PAM self-test.
  • Check the PAM diagnostic trouble codes (DTCs) from the self-test.

Are DTCs recorded for more than one front parking aid sensor?
Yes GO to A2
No • For DTCs B129C:08, B129C:31 or B129C:64, GO to A3.
• For information on all other PAM DTCs, REFER TO the PAM DTC Chart in this section.
A2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for breaks, short circuits, grounds or corrosion.

Is the front bumper wiring harness in good condition?
Yes GO to A3
No REPAIR or INSTALL a new front bumper wiring harness.
A3 CHECK THE SENSOR VOLTAGE
  • Ignition OFF.
  • Disconnect the left front parking aid sensor C1854.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1854-1 Ground

Is the voltage greater than 9 volts?
Yes GO to A4
No REPAIR the circuit.
A4 CHECK THE SENSOR GROUND
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1854-1 C1854-3

Is the voltage greater than 9 volts?
Yes GO to A5
No REPAIR the circuit.
A5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1854-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to A6
No REPAIR the circuit.
A6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect the PAM C4226B.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1854-2 Ground

Is there voltage present?
Yes REPAIR the damaged circuits.
No GO to A7
A7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1854-2 C1854-1
    C1854-2 C1854-3

Is the resistance greater than 10000 ohms?
Yes GO to A8
No REPAIR the damaged circuits.
A8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Action:
    Positive lead Measurement/Action Negative lead
    C1854-1 C4226B-2
    C1854-2 C4226B-11
    C1854-3 C4226B-12

Is the resistance less than 3 ohms?
Yes GO to A9
No REPAIR the faulty circuit.
A9 INSTALL A KNOWN-GOOD SENSOR
  • Connect the PAM C4226B.
  • Install a known-good sensor in place of the suspect left front active parking aid sensor.
    REFER TO: Front Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the PAM diagnostic trouble codes (DTCs) and repeat the self-test.

Is DTC B129C:08, B129C:31 or B129C:64 still present?
Yes GO to A10
No INSTALL a new left front parking aid sensor.
REFER TO: Front Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
A10 CHECK THE PAM (PARKING AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST B: B129D:08

For circuit and connector information, refer to Wiring Diagrams Cell 145.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B129D:08 Right Front Side Sensor: Bus Signal/Message Failures Continuous on-demand DTC that is set in the PAM when there is a message error on the LIN for the right front parking aid sensor.
PAM B129D:31 Right Front Side Sensor: No Signal Continuous on-demand DTC that is set in the PAM when no signal is received on the LIN for the RHF active parking aid sensor.
PAM B129D:64 Right Front Side Sensor: Signal Implausible Continuous on-demand DTC that is set in the PAM when the RHF active parking aid sensor does not respond.

Possible Sources

  • Wiring, Terminals or Connectors
  • Right Front Active Parking Aid Sensor
  • PAM
B1 CHECK THE PAM (PARKING AID MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SELF-TEST
  • The ignition is on.
  • Using the scan tool, perform the PAM self-test.
  • Check the PAM diagnostic trouble codes (DTCs) from the self-test.

Are DTCs recorded for more than one front parking aid sensor?
Yes GO to B2
No • For DTCs B129D:08, B129D:31 or B129D:64, GO to B3.
• For information on all other PAM DTCs, REFER TO the PAM DTC Chart in this section.
B2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for breaks, short circuits, grounds or corrosion.

Is the front bumper wiring harness in good condition?
Yes GO to B3
No REPAIR or INSTALL a new front bumper wiring harness.
B3 CHECK THE SENSOR VOLTAGE
  • Ignition OFF.
  • Disconnect the right front parking aid sensor C1855.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1855-1 Ground

Is the voltage greater than 9 volts?
Yes GO to B4
No REPAIR the circuit.
B4 CHECK THE SENSOR GROUND
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1855-1 C1855-3

Is the voltage greater than 9 volts?
Yes GO to B5
No REPAIR the circuit.
B5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1855-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to B6
No REPAIR the circuit.
B6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect the PAM C4226B.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1855-2 Ground

Is there voltage present?
Yes REPAIR the damaged circuits.
No GO to B7
B7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1855-2 C1855-1
    C1855-2 C1855-3

Is the resistance greater than 10000 ohms?
Yes GO to B8
No REPAIR the damaged circuits.
B8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C1855-1 C4226B-2
    C1855-2 C4226B-5
    C1855-3 C4226B-12

Is the resistance less than 3 ohms?
Yes GO to B9
No REPAIR the faulty circuit.
B9 INSTALL A KNOWN-GOOD SENSOR
  • Connect the PAM C4226B.
  • Install a known-good sensor in place of the suspect right front active parking aid sensor.
    REFER TO: Front Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the PAM diagnostic trouble codes (DTCs) and repeat the self-test.

Is DTC B129D:08, B129D:31 or B129D:64 present?
Yes GO to B10
No INSTALL a new right front parking aid sensor.
REFER TO: Front Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
B10 CHECK THE PAM (PARKING AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST C: B13F3:08

For circuit and connector information, refer to Wiring Diagrams Cell 145.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B13F3:08 Left Rear Side Sensor: Bus Signal/Message Failures Continuous on-demand DTC that is set in the PAM when there is a message failure on the LIN for the left side wheel sensor.
PAM B13F3:31 Left Rear Side Sensor: No Signal Continuous on-demand DTC that is set in the PAM when no signal is received on the LIN for the left side sensor.
PAM B13F3:64 Left Rear Side Sensor: Signal Implausible Continuous on-demand DTC that is set in the PAM when there is no response from the LHR side sensor.

Possible Sources

  • Wiring, Terminals or Connectors
  • Left Rear Side Sensor
  • PAM
C1 CHECK THE PAM (PARKING AID MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SELF-TEST
  • The ignition is on.
  • Using the scan tool, perform the PAM self-test.
  • Check the PAM diagnostic trouble codes (DTCs) from the self-test.

Are DTCs recorded for more than one front parking aid sensor?
Yes GO to C2
No • For diagnostic trouble codes (DTC) B13F3:08, B13F3:31 or B13F3:64, GO to C3.
• For information on all other PAM DTCs, REFER to the PAM DTC chart in this section.
C2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for breaks, short circuits, ground faults or corrosion.

Is the rear bumper wiring harness in good condition?
Yes GO to C3
No REPAIR or INSTALL a new rear bumper wiring harness.
C3 CHECK THE SENSOR VOLTAGE
  • Ignition OFF.
  • Disconnect the left rear side sensor C4420.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4420-1 Ground

Is the voltage greater than 9 volts?
Yes GO TO C4
No REPAIR the circuit.
C4 CHECK THE SENSOR GROUND
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4420-1 C4420-3

Is the voltage greater than 9 volts?
Yes GO to C5
No REPAIR the circuit.
C5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4420-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to C6
No REPAIR the circuit.
C6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect the PAM C4226A.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4420-2 Ground

Is there voltage present?
Yes REPAIR the damaged circuits.
No GO TO C7
C7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4420-2 C4420-1
    C4420-2 C4420-3

Is the resistance greater than 10000 ohms?
Yes GO TO C8
No REPAIR the damaged circuits.
C8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Action:
    Click to display the connectors

    Trouble Code


    Positive lead Measurement/Action Negative lead
    C4420-1 C4226A-3
    C4420-2 C4226A-17
    C4420-3 C4226A-10

Is the resistance less than 3 ohms?
Yes GO TO C9
No REPAIR the faulty circuit.
C9 INSTALL A KNOWN GOOD SENSOR
  • Connect the PAM C4226A.
  • Install a known good sensor in place of the suspect left rear side sensor.
    REFER to: Rear Active Park Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Aid, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the PAM diagnostic trouble codes (DTCs) and repeat the self-test.

Is DTC B13F3:08, B13F3:31 or B13F3:64 present?
Yes GO TO C10
No INSTALL a new left rear side sensor.
REFER to: Rear Active Park Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Aid, Removal and Installation).
C10 CHECK THE PAM (PARK AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST D: B13F4:08

For circuit and connector information, refer to Wiring Diagrams Cell 145.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B13F4:08 Right Rear Side Sensor: Bus Signal/Message Failures Continuous on-demand DTC set in the PAM when a LIN message failure occurs for the right side sensor.
PAM B13F4:31 Right Rear Side Sensor: No Signal Continuous on-demand DTC set in the PAM when no LIN signal is received from the right side sensor.
PAM B13F4:64 Right Rear Side Sensor: Signal Implausible Continuous on-demand DTC set in the PAM when there is no response from the right rear side sensor.

Possible Sources

  • Wiring, Terminals or Connectors
  • Right Rear Side Sensor
  • PAM
D1 CHECK THE PAM (PARK AID MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) SELF-TEST
  • The ignition is on.
  • Using the scan tool, perform the PAM self-test.
  • Check the PAM diagnostic trouble codes (DTCs) from the self-test.

Are DTCs recorded for more than one front parking aid sensor?
Yes GO to D2
No • For diagnostic trouble codes (DTC) B13F4:08, B13F4:31 or B13F4:64, GO to D3.
• For information on all other PAM DTCs, REFER to the PAM DTC chart in this section.
D2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for breaks, short circuits, ground faults or corrosion.

Is the rear bumper wiring harness in good condition?
Yes GO to D3
No REPAIR or INSTALL a new rear bumper wiring harness.
D3 CHECK THE SENSOR VOLTAGE
  • Ignition OFF.
  • Disconnect the right rear side sensor C4421.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4421-1 Ground

Is the voltage greater than 9 volts?
Yes GO to D4
No REPAIR the circuit.
D4 CHECK THE SENSOR GROUND
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4421-1 C4421-3

Is the voltage greater than 9 volts?
Yes GO to D5
No REPAIR the circuit.
D5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4421-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to D6
No REPAIR the circuit.
D6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect the PAM C4226A.
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4221-2 Ground

Is there voltage present?
Yes REPAIR the damaged circuits.
No GO to D7
D7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4421-2 C4421-1
    C4421-2 C4421-3

Is the resistance greater than 10000 Ohms?
Yes GO to D8
No REPAIR the damaged circuits.
D8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4421-1 C4226A-3
    C4421-2 C4226A-7
    C4421-3 C4226A-10

Is the resistance less than 3 ohms?
Yes GO to D9
No REPAIR the faulty circuit.
D9 INSTALL A KNOWN GOOD SENSOR
  • Connect the PAM C4226A.
  • Install a known good sensor in place of the suspect right rear side sensor.
    REFER to: Rear Active Park Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Aid, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the PAM diagnostic trouble codes (DTCs) and repeat the self-test.

Is DTC B13F4:08, B13F4:31 or B13F4:64 present?
Yes GO to D10
No INSTALL a new right rear side sensor.
REFER to: Rear Active Park Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Aid, Removal and Installation).
D10 CHECK THE PAM (PARK AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST E: B129C:96 OR B129D:96

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B129C:96 Left Front Side Sensor: Internal Component Failure Continuous on-demand DTC set in the PAM when the left front active park aid sensor has failed or has an incorrect decay time.
PAM B129D:96 Right Front Side Sensor: Internal Component Failure Continuous on-demand DTC set in the PAM when the front active park aid sensor has failed or has an incorrect decay time.

Possible Sources

  • Front Active Park Aid Sensor
  • PAM
E1 CHECK THE PAM (PARK AID MODULE) CONTINUOUS AND ON-DEMAND DIAGNOSTIC TROUBLE CODES (DTCS)
  • The ignition is on.
  • Using the diagnostic scan tool, retrieve the PAM DTCs.

Are there any DTCs other than DTC B129C:96 or DTC B129D:96?
Yes First, CHECK all other PAM DTCs. REFER to the PAM DTC chart in this section.
No GO to E2
E2 CHECK THE FRONT ACTIVE PARK ASSIST SENSOR OPERATION
  • Clean the front bumper and sensors with high-pressure water.
  • Make sure the suspect front park aid sensor is flush with the fascia.
  • Perform the Bearing Check.
    REFER to: Bearing Check (413-13C Parking Aid System - Vehicles With: Active Park Aid, General Procedures).

Does the system pass the bearing check?
Yes The system is currently operating correctly. The concern may have been caused by contamination, blockage or incorrect installation of the front active park aid sensor.
No GO to E3
E3 INSTALL A KNOWN GOOD SENSOR
  • Ignition OFF.
  • Install a known good sensor in place of the suspect front active park aid sensor.
    REFER to: Front Active Park Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Aid, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the PAM diagnostic trouble codes (DTCs) and repeat the self-test.

Is DTC B129C:96 or DTC B129D:96 still present?
Yes GO to E4
No INSTALL a new front active park aid sensor in place of the suspect sensor.
REFER to: Front Active Park Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Aid, Removal and Installation).
E4 CHECK THE PAM (PARK AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors and the related inline 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 PAM connectors and the related inline connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST F: B129C:98, B129D:98, B13F3:98, B13F4:98

For circuit and connector information, refer to Wiring Diagrams Cell 145.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B129C: 98 Left Front Side Sensor: Component or System Overtemperature Continuous on-demand DTC that sets when the left side Parking Aid sensor detects overheating.
PAM B129D: 98 Right Front Side Sensor: Component or System Overtemperature Continuous on-demand DTC that sets when the right side Parking Aid sensor detects overheating.
PAM B13F3: 98 Left Rear Side Sensor: Component or System Overtemperature Continuous on-demand DTC that sets when the left side Parking Aid sensor detects overheating.
PAM B13F4: 98 Right Rear Side Sensor: Component or System Overtemperature Continuous on-demand DTC that sets when the right side Parking Aid sensor detects overheating.

Possible Sources

  • Component Damage
  • Front bumper or sensor damage
  • Front Parking Aid sensor
  • PAM
F1 CHECK THE PAM (PARKING AID MODULE) SELF-TEST DIAGNOSTIC TROUBLE CODES (DTCS)
  • The ignition is on.
  • Using the scan tool, perform the PAM self-test.
  • Check the PAM diagnostic trouble codes (DTCs) from the self-test.

Are there Parking Aid Diagnostic Trouble Codes (DTCs) other than B129C:98, B129D:98, B13F3:98 or B13F4:98?
Yes For all other DTCs, GO to the DTC Chart in this section.
No GO to F2
F2 CHECK THE PARKING AID SENSOR FOR VENTILATION
  • Clean the front bumper and sensors with high-pressure water.
  • Make sure the suspect Parking Aid sensor(s) is installed flush in the fascia.
  • Check for damage, debris or any aftermarket accessories that may obstruct sensor ventilation.
  • Check for aftermarket exhaust or other aftermarket components.

Is there any damage or component obstructing the sensor(s) ventilation?
Yes REPAIR or REMOVE aftermarket components as necessary.
No GO to F3
F3 CHECK THE PARKING AID SENSORS
  • Ignition OFF.
  • Install a known good sensor in place of the suspect Parking Aid sensor. For the front sensor,
    REFER TO: Front Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
    For the rear sensor, REFER TO: Rear Active Parking Aid Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the DTCs and repeat the PAM self-test.

Is the concern still present?
Yes GO to F4
No The concern was a malfunctioning Parking Aid sensor. The system now operates correctly.
F4 CHECK THE PAM (PARKING AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST G: B13F3:96, B13F4:96

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B13F3: 96 Left Rear Side Sensor: Internal Component Failure Continuous on-demand DTC that sets in the PAM when the left rear side sensor has an internal fault or has an incorrect decay time.
PAM B13F4: 96 Right Rear Side Sensor: Internal Component Failure Continuous on-demand DTC that sets in the PAM when the right rear side sensor has an internal fault or has an incorrect decay time.

Possible Sources

  • Rear side sensor
  • PAM
G1 CHECK THE PAM (PARKING AID MODULE) CONTINUOUS AND ON-DEMAND DIAGNOSTIC TROUBLE CODES (DTCS)
  • The ignition is on.
  • Using the diagnostic scan tool, retrieve the PAM DTCs.

Are there any DTCs other than DTC B13F3:96 or DTC B13F4:96?
Yes First, CHECK all other PAM DTCs. REFER to the PAM DTC chart in this section.
No GO to G2
G2 CHECK THE REAR SIDE SENSOR OPERATION
  • Clean the rear bumper and sensors with high-pressure water.
  • Make sure the suspect rear side sensors are installed flush in the fascia.
  • Perform the Bearing Check.
    REFER to: Bearing Check (413-13C Parking Aid System - Vehicles With: Active Park Aid, General Procedures).

Does the system pass the bearing check?
Yes The system is now operating correctly. The concern may have been caused by contamination, a blockage or an incorrectly installed rear side sensor.
No GO to G3
G3 INSTALL A KNOWN GOOD SENSOR
  • Ignition OFF.
  • Install a known good sensor in place of the suspect rear side sensor.
    REFER TO: Rear Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
  • The ignition is on.
  • Using the diagnostic scan tool, clear the PAM diagnostic trouble codes (DTCs) and repeat the self-test.

Is DTC B13F3:96 or DTC B13F4:96 still present?
Yes GO to G4
No INSTALL a new rear side sensor in place of the suspect sensor.
REFER TO: Rear Active Parking Aid Sensors (413-13C Parking Aid System - Vehicles With: Active Park Assist, Removal and Installation).
G4 CHECK THE PAM (PARKING AID MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST H: ACTIVE PARK ASSIST DOES NOT ENGAGE WHEN THE ACTIVE PARK ASSIST SWITCH IS PRESSED

Normal Operation and Fault Symptoms

To activate, the Active Park Assist system relies on several message inputs and a driver input through the Active Park Assist switch. REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PAM B129E: 13 On/Off Switch - Semi-Automatic Enhanced Parallel Parking: Circuit Open Continuous DTC that sets in the PAM when the PAM detects an open circuit fault in the Active Parking Aid switch input circuit.
PAM B129E: 9E On/Off Switch - Semi-Automatic Enhanced Parallel Parking: Stuck On Continuous DTC that sets in the PAM when the PAM detects a short to ground in the Parking Aid switch input circuit.

Possible Sources

  • Wiring
  • PAM
H1 VERIFY CUSTOMER CONCERN
  • The ignition is on.
  • Check the Active Park Assist system operation.

Does the Active Park Assist system operate correctly?
Yes CLEAR the DTC. The system is now operating correctly. The concern may have been caused by high network traffic or the driver's perception of how the Active Park Assist system operates. REFER TO the Owner's Manual.
No GO to H2
H2 CHECK THE PAM (PARKING AID MODULE) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the scan tool, perform the PAM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes For DTC B129E:13, GO to H4.
For DTC B129E:9E, GO to H3.
For all other PAM DTCs, GO to the PAM DTC Chart in this section.
No GO to H5
H3 CHECK THE ACTIVE PARK ASSIST SWITCH CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the Automatic Start-Stop Deactivation Switch C3010.
  • Disconnect the PAM C4226A.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3010-2 Ground

Is the resistance greater than 10000 Ohms?
Yes GO to H6
No REPAIR the circuit.
H4 CHECK THE ACTIVE PARK ASSIST SWITCH CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect the PAM C4226A.
  • Disconnect the Automatic Start-Stop Deactivation Switch C3010.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3010-2 C4226A-12

Is the resistance less than 3 ohms?
Yes GO to H5
No REPAIR the circuit.
H5 CHECK THE ACTIVE PARK ASSIST SWITCH GROUND CIRCUIT FOR AN OPEN
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3010-12 Ground

Is the resistance less than 3 ohms?
Yes GO to H6
No REPAIR the circuit.
H6 CHECK THE ACTIVE PARK ASSIST SYSTEM SWITCH OPERATION
  • Connect the Auto Start-Stop Deactivation switch C3010.
  • Measure while pressing and releasing the Active Park Assist switch:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C4226A-12 Ground

Is the resistance less than 3 Ohms with the switch pressed and greater than 10,000 Ohms with the switch released?
Yes GO to H7
No INSTALL a new Auto Start-Stop Deactivation switch.
H7 CHECK THE PAM (PARK ASSIST MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST I: ACTIVE PARK ASSIST FAULT MESSAGE IS DISPLAYED ON THE CENTERSTACK INFORMATION DISPLAY AND/OR THE IPC (INSTRUMENT PANEL CLUSTER) MESSAGE CENTER DISPLAY

For circuit and connector information, refer to Wiring Diagrams Cell 14.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • Communication network concern
  • PAM
  • PSCM concern
  • SCCM concern
  • ABS concern
  • PCM Concern
  • RCM Concern
  • TRM concern
  • IPC Concern
  • GWM concern
  • APIM
  • BCM concern
I1 PERFORM NETWORK TEST
  • The ignition is on.
  • Using the diagnostic scan tool, perform the network test.

Do all modules pass the network test?
Yes GO to I2.
No
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
I2 CHECK THE PAM (PARK ASSIST MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the scan tool, perform the PAM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes REFER TO the PAM DTC Chart in this section.
No GO to I3
I3 CHECK THE PSCM (POWER STEERING CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform the PSCM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Power Steering (211-02 Power Steering, Diagnosis and Testing).
No GO to I4
I4 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform the SCCM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).
No GO to I5
I5 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform a self-test of the ABS module.

Are any diagnostic trouble codes (DTCs) present?
Yes
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).
No GO to I6
I6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform a PCM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Electronic Engine Controls (303-14A Electronic Engine Controls). Controls - 1.5 L EcoBoost (132 kW/180 L PS) - I3 (Y1), Diagnosis and Testing.
No GO to I7
I7 CHECK THE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scanner, perform the RCM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to I8
I8 CHECK THE TRM (TRAILER MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • 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 I9
I9 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform the IPC self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
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).
No GO to I10
I10 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: Communication Network (418-00 Communication Network, Diagnosis and Testing).
No GO to I11
I11 CHECK THE BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a scan tool, perform the BCM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to I12
I12 CHECK THE APIM (APPLICATION PROCESSOR INTERFACE MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform the APIM self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes
REFER TO: Information and Entertainment System (415-00 Information and Entertainment System, General Information, Diagnosis and Testing).
No GO to I13
I13 CHECK THE PAM (PARK ASSIST MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM 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 PAM connectors. Make sure they 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 service information: TSB, GSB, SSM or FSA. If a service bulletin exists for this condition, STOP this test and FOLLOW the service bulletin instructions. If no service information applies to this condition, INSTALL a new PAM.
REFER TO: Park Assist Module (PAM) (413-13A Park Aid System - Vehicles With: Rear Park Aid System, 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 PINPOINT TEST J: THE CENTERSTACK INFORMATION DISPLAY SHOWS ACTIVE PARK ASSIST UNAVAILABLE MESSAGE

For circuit and connector information, refer to Wiring Diagrams Cell 14.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • AdvanceTrac® is turned off
  • AdvanceTrac® event was in progress
  • ABS event was in progress
  • Battery was recently disconnected
J1 CONFIRM THE CONCERN
  • Confirm the concern

Does the center console information display show that the Active Park Assist system is unavailable?
Yes If AdvanceTrac® was turned off when the system was activated, or an ABS or AdvanceTrac® event was in progress when the system was activated.
The Active Park Assist system is unavailable if AdvanceTrac® is turned off or if an ABS or AdvanceTrac® event occurs when the system is activated by the driver.
If the battery was recently disconnected, the PSCM and/or ABS module was recently reprogrammed, or the vehicle is brand new from the factory (and vehicle speed did not exceed 50 km/h with minimal steering wheel input for 30 seconds.
The Active Park Assist system is unavailable immediately after the battery is disconnected or if the PSCM and/or ABS module was recently reprogrammed. Perform the following: drive the vehicle straight on a level/smooth road at a speed above 50 km/h with minimal driver steering input for 30 seconds. Abort this step at any time to maintain safe driving and repeat the process if necessary. If performed correctly, Active Park Assist will be available when the Active Park Assist switch is pressed.
No The system is currently operating normally.
DIAGNOSTIC PINPOINT TEST K: ACTIVE PARK ASSIST DOES NOT CORRECTLY POSITION THE VEHICLE

For circuit and connector information, refer to Wiring Diagrams Cell 14.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • Active Park Assist sensor(s) incorrectly secured in the bumper
  • Dirty or iced Park Assist sensor(s)
  • Sudden change in ambient temperature
  • Tire shedding
  • Incorrect curb
  • Vehicle or object not aligned with the parking space
  • Parking space length or position of parked objects changed after the vehicle passed the parking space
  • Transmission does not shift correctly
K1 CONFIRM THE CONCERN
  • Confirm the concern

Does the Active Park Assist system incorrectly position the vehicle?
Yes
The active park assist sensors are damaged, displaced or improperly secured in the bumper.
REMOVE and INSTALL the park assist sensor(s), if necessary.
REFER TO: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
REFER TO: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation). The active park assist sensor(s) are dirty or iced over.
CLEAN the bumper covers and active park assist sensors with high-pressure water.
The active park assist sensors react to rapid changes in ambient air temperature.
The air temperature around the vehicle can change quickly, for example, when the vehicle enters or exits a garage or car wash. As a result, the air temperature displayed in the vehicle may not be close enough to the actual ambient air temperature. The active park assist system relies on accurately detecting the ambient air temperature to compensate the sensors. No action is necessary.
The tires are not inflated to the correct pressure, the tires are not the same size, or the tires are not original equipment size.
CHECK the tire condition, pressure and size. A severely worn tire will pull the vehicle away from the curb. A larger-than-specified tire will bring the vehicle closer to the curb. REPAIR or REPLACE the tire(s) as necessary.
The driver allowed the vehicle to roll in the direction opposite to the selected gear, for example, rolling forward when reverse is selected.
INFORM the customer not to allow the vehicle to roll in the opposite direction while the active park assist system is operating. REFER TO the Owner's Literature.
An irregularly shaped curb runs along the parking space.
The system may not be able to align the vehicle to damaged, very low or debris-covered curbs. If this occurs, the system aligns the vehicle to objects bordering the parking space.
The vehicle or object bordering the parking space is not aligned with the parking space.
The system aligns the vehicle to objects bordering the parking space when a curb is not detected.
One of the parked vehicles has a raised attachment, such as a salt spreader or a moving truck platform, that the sensors cannot detect.
Raised attachments may not be detected by the system.
The length of the parking space or the position of the parked objects has changed after the vehicle passed the parking space.
The system scans the parking space as the vehicle is driven past available spaces. Therefore, the system cannot determine if the position of the parked vehicle or objects has changed after the parking space was scanned. No action is necessary at this time.
The transmission does not shift correctly. REFER TO: DTC Chart and Pinpoint Tests - 1.5 L EcoBoost (132 kW/180 L hp) - I3 (Y1) (307-01A Automatic Transmission - 8-Speed Automatic Transmission - 8F35/8F40, Diagnosis and Testing).
No The system is currently operating normally.
DIAGNOSTIC PINPOINT TEST L: ACTIVE PARK ASSIST DOES NOT OFFER AVAILABLE PARKING SPACES

For circuit and connector information, refer to Wiring Diagrams Cell 14.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • The Outside Air Temperature (OAT) sensor gives inaccurate temperature readings
  • Available parking space is too small
  • Not enough room to maneuver
  • Obstruction blocking the active park assist sensor(s).
  • Isolator ring is missing, damaged or displaced
L1 CONFIRM THE CONCERN
  • Confirm the concern

Does the active park assist system find available parking spaces?
Yes The system is currently operating normally.
No The vehicle moves too close or too far from the adjacent vehicle and/or objects.
The vehicle must be more than 40 cm (16 in) and less than 152 cm (60 in) from the adjacent vehicle.
The available parking space is too small.
For parallel parking, the active park assist system only allows available parking spaces that are longer than 1.2 times the length of the vehicle. The system operates correctly at this time.
For perpendicular parking, the active park assist system only allows available parking spaces that are wider than the width of the vehicle plus 90 cm (3 ft). The system operates correctly at this time.
The available space may not provide enough room to maneuver the vehicle.
There must be enough room beside the vehicle for the front of the vehicle to swing out as the operator backs into the space.
The park assist sensor(s) may be blocked by an obstruction.
CHECK and CLEAN the active park assist sensor(s). REMOVE any obstructions blocking the sensor(s).
The active park assist sensor isolator ring is missing, damaged or displaced.
INSTALL new active park assist sensor(s).
REFER TO: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
REFER TO: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation). The Outside Air Temperature (OAT) sensor does not show accurate temperature readings.
DRIVE the vehicle so that the airflow over the Outside Air Temperature (OAT) sensor to the center stack information and entertainment system display reflects the actual ambient temperature.
DIAGNOSTIC PINPOINT TEST M: THE CENTERSTACK INFORMATION DISPLAY SHOWS POA UNAVAILABLE WHEN USING TURN SIGNAL DURING PARALLEL PARKING

For circuit and connector information, refer to Wiring Diagrams Cell 14.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • parking space too small
  • front active park assist sensor blockage
  • Object not detected directly in front or behind
  • Object or vehicle detected on the turn signal side
M1 CONFIRM HAZARD
  • Confirm the concern

Does the center console information display show POA NOT AVAILABLE when the turn signal is used during the parallel parking assist maneuver?
Yes The parking space is too small.
The Active Park Assist system offers Parallel Park Assist only when the occupied parking space is at least 1.2 times the length of the vehicle. The system is operating correctly at this time.
An obstruction may be covering the front Active Park Assist sensor(s).
CHECK and CLEAN the front Active Park Assist sensor(s). REMOVE any obstructions covering the sensor(s).
No object or vehicle is detected directly in front of or behind the occupied parking space.
Parallel Park Assist is only available when an object or vehicle is detected within 1.5 m (5 ft) of either the front or rear bumper. The system is operating correctly at this time.
An object or vehicle is detected on the turn signal side.
The POA NOT AVAILABLE message is displayed when objects or vehicles are detected within 110 cm (4 ft) in North America and South America, or within 60 cm (2 ft) in Europe and Asia-Pacific, on the side of the turn signal activation. Passing vehicles, pedestrians or other objects may be detected. When the turn signal is activated, MAKE SURE the clearance on the desired side is at least 110 cm (4 ft) in North America and South America, or 60 cm (2 ft) in Europe and Asia-Pacific.
No The system is currently operating normally.
DIAGNOSTIC PINPOINT TEST N: ACTIVE PARK ASSIST DOES NOT OFFER PARALLEL PARK ASSIST FUNCTION

For circuit and connector information, refer to Wiring Diagrams Cell 14.

Normal Operation and Fault Symptoms

REFER TO: Parking Aid System - System Operation and Component Description (413-13C Parking Aid System - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • Active Park Assist Operation
N1 CONFIRM THE CONCERN
  • Confirm the concern

Does the Active Park Assist system offer Parallel Park Assist?
Yes The system is currently operating normally.
No The vehicle has traveled more than 2 m (7 ft) after the ignition was turned on or after parallel parking.
INFORM the customer that Parallel Park Assist is disabled. The feature is only available immediately after a successful automatic parallel park or immediately after the ignition is turned on. Driving more than 2 m (7 ft) after either of these events makes Parallel Park Assist unavailable for driver selection.

Test yourself

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