Passive Anti-Theft System (PATS) Diagnosis and Testing
In this manual: Electrical
~12min read
Diagnostic Trouble Code Charts
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).
DTC Chart
Trouble Code
Description
Action
B10C7:01
Interior Trunk Antenna: General Electrical Failure
GO to Pinpoint Test A
B10C8:01
Interior Center Antenna: General Electrical Malfunction
GO to Pinpoint Test A
B10D7:05
PATS Key: System Programming Failure
DIAGNOSE all other diagnostic trouble codes (DTCs) first. If no other DTCs are present, REPROGRAM the suspect passive key again. If key programming fails, REPLACE the suspect passive key. PROGRAM the new passive key. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
B10D8:00
PATS Keys Less Than Programmed Minimum: No Subtype Information
Fewer than 2 keys programmed (a minimum of 2 keys must be programmed). PROGRAM the customer's second key. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
B10DA:51
PATS Target Identifier: Not Programmed
No PCM/SOBDMC identifier in BCM memory. PERFORM a configuration reset. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
B11C6:01
Passenger Door Exterior Antenna: General Electrical Malfunction
GO to Pinpoint Test A
B11KA:01
Driver Door Exterior Antenna: General Electrical Malfunction
GO to Pinpoint Test A
All Other Diagnostic Trouble Codes (DTCs)
-
REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
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).
PCM/SOBDMC Diagnostic Trouble Code Chart
Trouble Code
Description
Action
P161A
Incorrect Response from Immobilizer Control Module
BCM identifier received by the PCM/SOBDMC does not match the identifier stored in PCM/SOBDMC memory. PERFORM a configuration reset. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
P161B
Incorrect Response from Secondary Immobilizer Module
BCM identifier received by the SOBDMC does not match the identifier stored in SOBDMC memory. PERFORM a configuration reset. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
All Other Diagnostic Trouble Codes (DTCs)
-
REFER to the appropriate section 303-14.
Symptom Chart
Symptom Chart: PATS
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).
Condition
Possible Sources
Action
The message center displays the message "Key Not Detected."
Refer to Pinpoint Test
GO to Pinpoint Test A
Vehicle does not start with the passive key in certain locations inside the vehicle, but starts when using the passive key backup start location
Refer to Pinpoint Test
GO to Pinpoint Test A
Unable to program new keys
Refer to Pinpoint Test
GO to Pinpoint Test A
Unable to turn ignition on or ready to drive indicator does not illuminate
Refer to Pinpoint Test
GO to Pinpoint Test B
Pinpoint Tests
The message center displays the message "Key Not Detected."
For circuit and connector information, refer to Wiring Diagrams Cell 112.
For circuit and connector information, refer to Wiring Diagrams Cell 117.
Normal Operation and Fault Symptoms
REFER TO: Passive Anti-Theft System (PATS) - System Operation and Component Description (419-01B Passive Anti-Theft System (PATS), Description and Operation).
PATS does not shut off a vehicle that is already running.
DTC Fault Trigger Conditions
Trouble Code
Description
Fault Trigger Conditions
B10C7:01
Interior Trunk Antenna: General Electrical Failure
Sets when the BCM detects a fault in the keyless entry rear antenna.
B10C8:01
Interior Center Antenna: General Electrical Malfunction
Sets when the BCM detects a fault in the PATS central antenna.
B11C6:01
Passenger Door Exterior Antenna: General Electrical Malfunction
Sets when the BCM detects a fault in the passenger door keyless entry antenna.
B11KA:01
Driver Door Exterior Antenna: General Electrical Malfunction
Sets when the BCM detects a fault in the driver door keyless entry antenna.
Possible Causes
Environmental Interference
Wiring, Terminals or Connectors
Passive Key Not Programmed
PATS Center Antenna
Rear Passive Entry Antenna
Driver front door outside handle
Passenger front door outside handle
BCM
Visual Inspection and Preliminary Diagnosis
If the selection is available on the scan tool (Body > Security > PATS Functions), make sure that the Passive Entry/Passive Start feature is enabled. If the vehicle is disabled, only start with the key in the backup starting location.
DIAGNOSTIC TEST A: NO KEY DETECTED MESSAGE DISPLAYED IN THE MESSAGE CENTER
A1 CHECK THE BCM (BODY CONTROL MODULE) ANTENNA DIAGNOSTIC TROUBLE CODES (DTCS)
The ignition is on.
Using the diagnostic scan tool, perform a BCM self-test. Record the DTC.
Ignition OFF.
Are DTC B10C7:01, B10C8:01, B11C6:01 or B11CA:01 present?
Yes
GO to A8
No
GO to A2
A2 CHECK IF PASSIVE KEYS START THE VEHICLE FROM THE PASSIVE KEY BACKUP START LOCATION
Place the suspect passive key in the backup starting location and attempt to start the vehicle. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
Does the key start the vehicle (the message center displays the ready to drive indicator on hybrid vehicles)?
Yes
GO to A5
No
GO to A3
A3 DOCUMENT KEY IDENTIFICATION MODULES USING THE BCM (BODY CONTROL MODULE) KEY ID AND RTM (RADIO TRANSCEIVER MODULE) KEY IDENTIFICATION PARAMETERS (PIDS)
Using a diagnostic scan tool, view the BCM PIDs.
Using a diagnostic scan tool, monitor the following BCM PIDs:
Using the diagnostic scan tool, monitor the RTM Lst_Xm_ID_Cd PID (last received Transmitter Identification Code (TIC)) while pressing the lock and unlock buttons on the suspect key.
Record the RTM Lst_Xm_ID_Cd TIC ID displayed when the lock and unlock buttons on the suspect key are pressed.
Compare the RTM TIC ID with the recorded BCM TIC IDs.
Does the RTM TIC ID match any of the recorded BCM TIC IDs?
Yes
GO to A4
No
No fault found. The key in question is not an original key supplied with the vehicle.
A4 CHECK THE KEY OPERATION
Check the operation of the suspect key.
Is the concern still present?
Yes
REPLACE the suspect key. PROGRAM the new key. Refer to the appropriate key programming procedure. REFER TO: Anti-Theft Key Programming - Scan Tool (419-01B Passive Anti-Theft System (PATS), General Procedures).
No
The system is functioning. The concern was caused by an incompletely programmed key.
Press the lock and unlock buttons on the RKE transmitter of the suspect passive key.
Do the doors lock and unlock?
Yes
GO to A6
No
REFER TO: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
A6 CHECK PASSIVE KEY LOCATION
Check the location of the passive key. If it is in the far corners of the vehicle interior, move the passive key out of these locations and attempt to start the vehicle.
Does the vehicle start (the message center displays the ready to drive indicator on hybrid vehicles)?
Yes
System is OK. INFORM the customer that the vehicle is operating normally.
No
GO to A7
A7 CHECK FOR ENVIRONMENTAL INTERFERENCE
Check for consumer electronic devices that may cause interference with the passive key, such as:
other passive keys.
a charger that is plugged in.
USB connection to the media hub.
a mobile phone, access card or other electronic device near the passive key.
Remove any devices found and attempt to start the vehicle.
Does the vehicle start (the message center displays the ready to drive indicator on hybrid vehicles)?
Yes
System is OK. INFORM the customer that the vehicle is operating normally.
No
GO to A8
A8 CHECK THE SUSPECT ANTENNA
The ignition is on.
NOTE: For concerns with key programming or if the vehicle cannot be started with the passive key in the backup starting location, follow the PATS central antenna diagnosis. Using the diagnostic scan tool, perform a BCM self-test. Record all DTCs present.
Ignition OFF.
Disconnect the suspect antenna.
Action: Click to display the connectors
PATS central antenna (DTC B10C8:01)
Positive lead
Measurement/Action
Negative lead
C3513, pin 1, component side
C3513, pin 2, component side
Click to display the connectors
Keyless entry rear antenna (DTC B10C7:01)
Positive lead
Measurement/Action
Negative lead
C4817, pin 1, component side
C4817, pin 2, component side
Click to display the connectors
Driver front door outside handle (DTC B11CA:01)
Positive lead
Measurement/Action
Negative lead
C543, pin 2, component side
C543, pin 3, component side
Click to display the connectors
Passenger front door outside handle (DTC B11C6:01)
Positive lead
Measurement/Action
Negative lead
C634, pin 2, component side
C634, pin 3, component side
Is the resistance between 1 and 10 ohms?
Yes
GO to A9
No
INSTALL a new antenna. For the PATS central antenna: REFER TO: PATS Central Antenna (419-01B Passive Anti-Theft System (PATS), Removal and Installation). For the keyless entry rear antenna, REFER TO: Keyless Entry Rear Antenna (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For any front door outside handle, REFER TO: Front Door Outside Handle (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation).
A9 CHECK SUSPECT ANTENNA CIRCUITS FOR SHORT TO VOLTAGE
Disconnect C2280G (PATS central antenna).
Disconnect C2280E (keyless entry rear antenna or front door outside handle).
Action: Click to display the connectors
PATS Center Antenna
Positive lead
Measurement/Action
Negative lead
C3513-1
Ground
C3513-2
Ground
Click to display the connectors
Rear Passive Entry Antenna
Positive lead
Measurement/Action
Negative lead
C4817-1
Ground
C4817-2
Ground
Click to display the connectors
Driver front door outside handle
Positive lead
Measurement/Action
Negative lead
C543-2
Ground
C543-3
Ground
Click to display the connectors
Passenger front door outside handle
Positive lead
Measurement/Action
Negative lead
C634-2
Ground
C634-3
Ground
Is there voltage present?
Yes
REPAIR the faulty circuit.
No
GO to A10
A10 CHECK SUSPECT ANTENNA CIRCUITS FOR SHORT TO GROUND
Action: Click to display the connectors
PATS Center Antenna
Positive lead
Measurement/Action
Negative lead
C3513-1
Ground
C3513-2
Ground
Click to display the connectors
Rear Passive Entry Antenna
Positive lead
Measurement/Action
Negative lead
C4817-1
Ground
C4817-2
Ground
Click to display the connectors
Driver front door outside handle
Positive lead
Measurement/Action
Negative lead
C543-2
Ground
C543-3
Ground
Click to display the connectors
Passenger front door outside handle
Positive lead
Measurement/Action
Negative lead
C634-2
Ground
C634-3
Ground
Is the resistance greater than 10000 ohms?
Yes
GO to A11
No
REPAIR the faulty circuit.
A11 CHECK SUSPECT ANTENNA CIRCUITS FOR OPEN
Action: Click to display the connectors
PATS Center Antenna
Positive lead
Measurement/Action
Negative lead
C3513-1
C2280G-40
C3513-2
C2280G-27
Click to display the connectors
Rear Passive Entry Antenna
Positive lead
Measurement/Action
Negative lead
C4817-1
C2280E-16
C4817-2
C2280E-15
Click to display the connectors
Driver front door outside handle
Positive lead
Measurement/Action
Negative lead
C543-2
C2280E-13
C543-3
C2280E-28
Click to display the connectors
Passenger front door outside handle
Positive lead
Measurement/Action
Negative lead
C634-2
C2280E-12
C634-3
C2280E-29
Is the resistance less than 3 ohms?
Yes
INSTALL a new antenna. For the PATS central antenna: REFER TO: Passive Anti-Theft System (PATS) Central Antenna (419-01B Passive Anti-Theft System (PATS), Removal and Installation). For the keyless entry rear antenna, REFER TO: Keyless Entry Rear Antenna (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For any front door outside handle, REFER TO: Front Door Outside Handle (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). CHECK the system for normal operation. If the concern is not resolved, GO to A12.
No
REPAIR the faulty circuit.
A12 CHECK BCM (BODY CONTROL MODULE) OPERATION
Disconnect and inspect all BCM connectors.
Repair:
corrosion (install new connectors or terminals, clean the module pins)
damaged or bent terminals/pins - install new terminals/pins
pushed-out pins - install new pins as necessary
Connect all BCM connectors and make sure they 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 service information: TSB, GSB, SSM or FSA. If a service article exists for this concern, STOP this test and FOLLOW the service article instructions. If no service article exists, INSTALL a new BCM. REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No
The system is currently operating correctly. The concern may have been caused by module connections. Refer to the root cause of any connector or terminal issues.
Unable to turn the ignition on or the ready-to-drive indicator does not illuminate
Normal Operation and Fault Symptoms
REFER TO: Passive Anti-Theft System (PATS) - System Operation and Component Description (419-01B Passive Anti-Theft System (PATS), Description and Operation).
Possible Causes
Battery Voltage Concern
Drivability concern
Starting System
PATS Concern
PINPOINT TEST B: UNABLE TO TURN IGNITION ON OR READY TO DRIVE INDICATOR DOES NOT ILLUMINATE
B1 CHECK VEHICLE BATTERY
Perform the battery state of health test. REFER TO: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).
Is the battery OK?
Yes
GO to B2
No
REPAIR the battery condition and CHECK the charging operation. REFER TO the Diagnosis and Testing section in the appropriate 414-00 section.
B2 CHECK FOR KEY NOT DETECTED MESSAGE
Press and release the START/STOP button while observing the message center.
Does the message "Key Not Detected" display in the message center?
Yes
GO to Pinpoint Test A
No
GO to B3
B3 CHECK IGNITION MODE INDICATOR
Press and release the START/STOP button while observing the ignition mode indicator in the top of the button.
Does the ignition mode indicator constantly turn on and off?
Yes
The condition is not related to PATS. DIAGNOSE no power in ON. REFER TO: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).
No
GO to B4
B4 CHECK THE BCM (BODY CONTROL MODULE) AND PCM (POWERTRAIN CONTROL MODULE) / SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC MONITORING CONTROL) DIAGNOSTIC TROUBLE CODES (DTCS)
Follow the procedure to establish a diagnostic scan session with the vehicle. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Using a scan tool, perform the BCM self-test.
Using the diagnostic scan tool, perform the PCM/SOBDMC self-test.
Are there any BCM or PCM/SOBDMC diagnostic trouble codes (DTCs) present?
Yes
REFER TO the BCM DTC Chart or PCM/SOBDMC DTC Chart in this section.
No
The condition is not related to PATS. DIAGNOSE no power in ON. REFER TO: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).
?
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