SECTION 419-01C: Anti-Theft — Passive Anti-Theft System (PATS), With Intelligent Access (IA)
2014 Flex Workshop Manual
DIAGNOSIS AND TESTING
Procedure revision date: 06/04/2013

Anti-Theft

 

DTC Charts

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

 


  RFA Module DTC Chart

DTC Description Action
B10C7:01 Interior Trunk Antenna: General Electrical Failure GO to Pinpoint Test A .
B10C8:01 Interior Centre Antenna: General Electrical Failure GO to Pinpoint Test A .
B10C9:01 Interior Front Antenna: General Electrical Failure GO to Pinpoint Test A .
B10D7:05 PATS Key: System Programming Failure GO to Pinpoint Test D .
B10D8:51 PATS Key Less Than Minimum Programmed: Not Programmed If other PATS DTCs are present, address them first. If DTC B10D8:51 is the only DTC present, PROGRAM additional keys (minimum of 2 keys must be programmed). REFER to Key Programming Using Diagnostic Equipment .
B10D9:11 PATS Transponder: Circuit Short to Ground GO to Pinpoint Test E .
B10D9:12 PATS Transponder: Circuit Short to Battery GO to Pinpoint Test E .
B10D9:31 PATS Transponder: No Signal GO to Pinpoint Test E .
B10D9:87 PATS Transponder: Missing Message GO to Pinpoint Test E .
B10DA:51 PATS Target Identifier: Not Programmed There is no PCM identification stored in the RFA module. CARRY OUT a parameter reset, then CYCLE the ignition and make an attempt to start the vehicle. REFER to Passive Anti-Theft System (PATS) Parameter Reset .
B10DA:61 PATS Target Identifier: Signal Calculation Failure There is an incorrect PCM ID stored in the RFA module. CARRY OUT a parameter reset, then CYCLE the ignition and make an attempt to start the vehicle. REFER to Passive Anti-Theft System (PATS) Parameter Reset .
U201F:31 External Receiver: No Signal REFER to Section 501-14B .
All other DTCs — REFER to Section 419-10 .

 


 PCM DTC Chart

DTC Description Action
P161A Incorrect Response from Immobilizer Control Module The BCM ID received by the PCM does not match the ID stored in the PCM memory. CARRY OUT a parameter reset. REFER to Passive Anti-Theft System (PATS) Parameter Reset .
All other DTCs — REFER to Section 303-14 .

 

Symptom Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

 
Symptom Chart
Condition Possible Sources Action
  • The vehicle does not start with the IA key in certain areas within the vehicle
  • Refer to the Diagnostic Routine
  • The engine does not start or unable to turn ignition on
  • Refer to the Diagnostic Routine
  • STARTING SYSTEM FAULT is displayed in the message center
  • PATS concern
  • RETRIEVE and DIAGNOSE all PATS DTCs in the RFA module and the PCM. REFER to the RFA Module DTC Chart or the PCM DTC Chart in this section.
  • NO KEY DETECTED is displayed in the message center
  • Refer to the Diagnostic Routine
 

Pinpoint Tests

 

Pinpoint Test A: The Vehicle Does Not Start With the IA Key in Certain Areas of the Vehicle

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 112 , Passive Anti-Theft System for schematic and connector information.

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS no-start if the IA key is within a few inches of the charger. If a concern is observed, move the IA key away from the charger and attempt to start the vehicle.

Normal Operation and Fault Conditions

Refer to System Operation - Passive Anti-Theft System (PATS) in Anti-Theft .

Refer to Component Description - Passive Start Antennas in Anti-Theft .



  RFA Module DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
B10C7:01 Interior Trunk Antenna: General Electrical Failure Sets when the RFA module detects an open, short to ground, or short to voltage from one of the circuits to the rear passive start antenna.
B10C8:01 Interior Centre Antenna: General Electrical Failure Sets when the RFA module detects an open, short to ground, or short to voltage from one of the circuits to the center passive start antenna.
B10C9:01 Interior Front Antenna: General Electrical Failure Sets when the RFA module detects an open, short to ground, or short to voltage from one of the circuits to the front passive start antenna.

 
PINPOINT TEST A: THE VEHICLE DOES NOT START WITH THE IA KEY IN CERTAIN AREAS OF THE VEHICLE
Test Step Result / Action to Take
  A1 CHECK THE IA KEY LOCATION  
  • Ignition ON.
  • Check the location of the IA key. If it is placed in the far corners of the interior of the vehicle, move the IA key out of these areas and attempt to start the vehicle.
  • Does the vehicle start?
Yes
The system is operating correctly. INFORM the customer of the correct operation of the IA feature.

No
GO to A2 .
  A2 CHECK FOR ENVIRONMENTAL INTERFERENCE  
  • Check for the use of any charger or other wireless device that can cause interference with the IA key. If any device is found, remove the device and attempt to start the vehicle.
  • Does the vehicle start?
Yes
The system is operating correctly. INFORM the customer of the cause of the concern and the correct operation of the IA feature.

No
GO to A3 .
  A3 CHECK THE SUSPECT PASSIVE START ANTENNA  
  • Ignition OFF.
  • Disconnect: Suspect Passive Start Antenna .
  • Measure the resistance between the suspect passive start antenna pin 1, component side and suspect passive start antenna pin 2, component side.


  • Is the resistance between 0.3 and 0.6 ohms?
Yes
GO to A4 .

No
INSTALL a new passive start antenna for the one in question.
  A4 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE  
  • Disconnect: RFA Module C2153A .
  • Place an IA key in the backup transceiver slot and press the start/stop switch to transition the ignition to RUN.
  • Measure the voltage between the suspect passive start antenna, harness side and ground as follows:


    • Suspect Passive Start Antenna Connector-Pin Circuit
    Front C325-1 VPK05 (BN/GN)
    Front C325-2 RPK05 (YE/OG)
    Center C326-1 VPK06 (GY/VT)
    Center C326-2 RPK06 (BU/WH)
    Rear C4321-1 VPK08 (WH/OG)
    Rear C4321-2 RPK08 (BN/VT)



  • Is any voltage present?
Yes
REPAIR the circuit in question.

No
GO to A5 .
  A5 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR A SHORT TO GROUND  
  • Ignition OFF.
  • Measure the resistance between the suspect passive start antenna, harness side and ground as follows:


    • Suspect Passive Start Antenna Connector-Pin Circuit
    Front C325-1 VPK05 (BN/GN)
    Front C325-2 RPK05 (YE/OG)
    Center C326-1 VPK06 (GY/VT)
    Center C326-2 RPK06 (BU/WH)
    Rear C4321-1 VPK08 (WH/OG)
    Rear C4321-2 RPK08 (BN/VT)



  • Are the resistances greater than 10,000 ohms?
Yes
GO to A6 .

No
REPAIR the circuit in question.
  A6 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR AN OPEN  
  • Measure the resistance between the suspect passive start antenna, harness side and the RFA module, harness side as follows:


    • Suspect Passive Start Antenna

    Connector-Pin     		Circuit RFA Module

    Connector-Pin
    Front

    C325-1     		VPK05 (BN/GN) C2153A-1
    Front

    C325-2     		RPK05 (YE/OG) C2153A-2
    Center

    C326-1     		VPK06 (GY/VT) C2153A-3
    Center

    C326-2     		RPK06 (BU/WH) C2153A-4
    Rear

    C4321-1     		VPK08 (WH/OG) C2153A-5
    Rear

    C4321-2     		RPK08 (BN/VT) C2153A-14



  • Are the resistances less than 3 ohms?
Yes
GO to A7 .

No
REPAIR the circuit in question.
  A7 CHECK FOR CORRECT RFA MODULE OPERATION  
  • Disconnect and inspect all the RFA module connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the RFA module connectors. Make sure they seat correctly.
  • Operate the system and determine if the concern is still present.
  • Is the concern still present?
Yes
CHECK On-Line Automotive Service Information System (OASIS) for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new RFA module. REFER to Section 419-10 .

No
The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
 

Pinpoint Test B: The Engine Does Not Start or Unable To Turn Ignition On

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 112 , Passive Anti-Theft System for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Passive Anti-Theft System (PATS) in Anti-Theft .

Refer to System Operation - Backup Starting in Anti-Theft .

Refer to Component Description - Passive Start Antennas in Anti-Theft .

 
PINPOINT TEST B: THE ENGINE DOES NOT START OR UNABLE TO TURN IGNITION ON

NOTE: The IA feature is a programmable parameter and can be enabled/disabled with a scan tool. If the feature is disabled, the IA feature to enter the vehicle and passive starting are inoperative. To start the vehicle, the IA key has to be placed in the backup transceiver slot.

Test Step Result / Action to Take
  B1 CHECK FOR MESSAGES IN THE MESSAGE CENTER  
  • Check the message center while pressing the start/stop switch.
  • Is NO KEY DETECTED displayed in the message center?
Yes
GO to Pinpoint Test C .

No
GO to B2 .
  B2 CHECK THE IPC OPERATION  
  • Observe the IPC operation while pressing the start/stop switch.
  • Do some of the indicators in the IPC illuminate?
Yes
GO to B3 .

No
GO to B4 .
  B3 CHECK FOR RFA MODULE AND PCM DTCs  
  • Using a scan tool, perform the RFA module and PCM self-test.
  • Are any RFA module or PCM DTCs present?
Yes
REFER to the RFA Module DTC Chart or PCM DTC Chart in this section.

No
The no-crank condition is not PATS -related. REFER to Section 303-06 .
  B4 CHECK FOR COMMUNICATION WITH THE SCAN TOOL  
  • Refer to Section 418-00 and follow the procedure to establish a session with the vehicle.
  • Does the scan tool establish communication with the BCM and the RFA module?
Yes
REFER to Section 211-05 to diagnose no power in RUN-no power in START.

No
REFER to Section 418-00 to diagnose the BCM or the RFA module not responding to the scan tool.
 

Pinpoint Test C: NO KEY DETECTED Message Is Displayed In The Message Center

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

Refer to System Operation - NO KEY DETECTED Message in Anti-Theft .

 
PINPOINT TEST C: NO KEY DETECTED MESSAGE IS DISPLAYED IN THE MESSAGE CENTER

NOTE: This pinpoint test may require a second IA key. If only one key is available, a second IA key must be obtained.

Test Step Result / Action to Take
  C1 CHECK FOR RFA MODULE DTCs  
  • Ignition ON.
  • Using a diagnostic scan tool, perform the RFA module self-test.
  • Are any DTCs present?
Yes
DIAGNOSE the RFA module DTCs. REFER to RFA Module DTC Chart in this section.

No
If the concern is still present, GO to C2 .

If concern is no longer present, the system is operating normally at this time. The concern may have been caused due to an intermittent fault condition.
  C2 CHECK THE IA KEY RKE TRANSMITTER OPERATION  
  • Press the lock and unlock buttons on the suspect IA key.
  • Do the doors lock and unlock?
Yes
GO to C3 .

No
REFER to Section 501-14B to diagnose the inoperative RKE transmitter concern.
  C3 CHECK THE IA KEY LOCATION  
  • Place the IA key in several locations within the vehicle and attempt to start the vehicle.
  • Does the vehicle start with the IA key in certain areas only?
Yes
GO to Pinpoint Test A .

No
GO to C4 .
  C4 CHECK FOR ENVIRONMENTAL INTERFERENCE  
  • Check for the use of any charger or other wireless device that can cause interference with the IA key. If any device is found, remove the device and attempt to start the vehicle.
  • Does the vehicle start?
Yes
The vehicle is operating correctly. INFORM the customer of the cause of the concern and the normal operation of the IA feature.

No
GO to C5 .
  C5 CHECK THE IA KEY PROGRAMMING  
Yes
The concern was caused by an unprogrammed IA key.

No
DISCARD the key in question and PROGRAM a new IA key. REFER to Key Programming Using Diagnostic Equipment .
 

Pinpoint Test D: B10D7:05

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 112 , Passive Anti-Theft System for schematic and connector information.

Normal Operation and Fault Conditions

When the RFA module enters a key programming state, it activates the backup transceiver to read the key in the backup transceiver slot. When a valid IA key is used and there are no concerns with the PATS , the key is programmed into the RFA module memory.



  RFA Module DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
B10D7:05 PATS Key: System Programming Failure Sets when the RFA module has not successfully programmed an IA key into the RFA module when in the key programming state.

Visual Inspection and Diagnostic Pre-checks

 
PINPOINT TEST D: B10D7:05

NOTE: This pinpoint test may require a second IA key. If only one key is available, a second IA key must be obtained.

Test Step Result / Action to Take
  D1 REVIEW THE RFA MODULE DTCs FROM THE ON-DEMAND SELF-TEST  
  • Review the RFA module DTCs from the on-demand self-test.
  • Are any other RFA module DTCs present?
Yes
REFER to the RFA Module DTC Chart in this section.

No
GO to D2 .
  D2 CHECK THE IA KEYS  
  • Verify the correct IA keys are used with the vehicle.
  • Are the correct keys used?
Yes
ATTEMPT to program the key again. REFER to Key Programming Using Diagnostic Equipment .

If the key programming fails, GO to D3 .

No
OBTAIN the correct key(s) for the vehicle. PROGRAM the new key(s). REFER to Key Programming Using Diagnostic Equipment .
  D3 CHECK BOTH IA KEYS  

    NOTE: At least 2 IA keys must be present to carry out this pinpoint test step.

  • Program both IA keys. Refer to Key Programming Using Diagnostic Equipment .
  • After both IA keys have been programmed, attempt to start the vehicle with each IA key (one key inside the vehicle at a time).
  • Does the vehicle start with only one IA key?
Yes
REPLACE the IA key that did not program. PROGRAM the new IA key. REFER to Key Programming Using Diagnostic Equipment .

No
If the vehicle started with both IA keys, the vehicle is operating correctly. The concern was cause by an unprogrammed IA key.

If neither IA key starts the vehicle, INSTALL a new backup transceiver. REFER to Backup Transceiver . PROGRAM the IA keys. REFER to Key Programming Using Diagnostic Equipment .
 

Pinpoint Test E: B10D9:11, B10D9:12, B10D9:31 Or B10D9:87

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 112 , Passive Anti-Theft System for schematic and connector information.

Normal Operation and Fault Conditions

The RFA module uses the backup transceiver to operate the PATS in the event of a failure of any passive start antenna, a discharged battery in the IA key, or a communication concern with the TPM module. The backup transceiver is also used for IA key programming.

The backup transceiver receives voltage and ground directly from the RFA module. The RFA module controls the backup transceiver through the dedicated clock and data circuits.



  RFA Module DTC Fault Trigger Conditions

DTC Description Fault Trigger Conditions
B10D9:11 PATS Transponder: Circuit Short to Ground Sets when the RFA module detects a short to ground from the transceiver voltage supply circuit.
B10D9:12 PATS Transponder: Circuit Short to Battery Sets when the RFA module detects a short to voltage from the transceiver voltage supply circuit.
B10D9:31 PATS Transponder: No Signal Sets when the RFA module does not receive a signal from the backup transceiver.
B10D9:87 PATS Transponder: Missing Message Sets when the RFA module cannot initialize the backup transceiver.

 
PINPOINT TEST E: B10D9:11, B10D9:12, B10D9:31 OR B10D9:87
Test Step Result / Action to Take
  E1 CHECK THE BACKUP TRANSCEIVER CIRCUITS FOR A SHORT TO VOLTAGE  
  • Ignition OFF.
  • Disconnect: RFA Module C2153D .
  • Disconnect: Backup Transceiver C3371 .
  • Ignition ON.
  • Measure the voltage between the backup transceiver, harness side and ground as follows:


    • Backup Transceiver Connector-Pin Circuit
    C3371-2 LPK32 (GN/BU)
    C3371-3 VPK32 (WH/BU)
    C3371-4 VPK33 (WH)
    C3371-5 RPK32 (YE/GY)



  • Is any voltage present?
Yes
REPAIR the circuit in question.

No
GO to E2 .
  E2 CHECK THE BACKUP TRANSCEIVER CIRCUITS FOR A SHORT TO GROUND  
  • Ignition OFF.
  • Measure the resistance between the backup transceiver, harness side and ground as follows:


    • Backup Transceiver Connector-Pin Circuit
    C3371-2 LPK32 (GN/BU)
    C3371-3 VPK32 (WH/BU)
    C3371-4 VPK33 (WH)
    C3371-5 RPK32 (YE/GY)



  • Are the resistances greater than 10,000 ohms?
Yes
GO to E3 .

No
REPAIR the circuit in question.
  E3 CHECK THE BACKUP TRANSCEIVER CIRCUITS FOR AN OPEN  
  • Measure the resistance between the backup transceiver, harness side and RFA module, harness side as follows:


    • Backup Transceiver Connector-Pin Circuit RFA Module Connector-Pin
    C3371-2 LPK32 (GN/BU) C2153D-11
    C3371-3 VPK32 (WH/BU) C2153D-13
    C3371-4 VPK33 (WH) C2153D-12
    C3371-5 RPK32 (YE/GY) C2153D-14



  • Are the resistances less than 3 ohms?
Yes
INSTALL a new backup transceiver. REFER to Backup Transceiver . TEST the system for normal operation. If the concern is still present, GO to E4 .

No
REPAIR the circuit in question.
  E4 CHECK FOR CORRECT RFA MODULE OPERATION  
  • Disconnect and inspect all the RFA module connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the RFA module connectors. Make sure they seat correctly.
  • Operate the system and determine if the concern is still present.
  • Is the concern still present?
Yes
CHECK On-Line Automotive Service Information System (OASIS) for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new RFA module. REFER to Section 419-10 .

No
The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.