Pinpoint Test C: DTC B10D9:87

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

C1 RETRIEVE THE BCM DTCs FROM THE SELF-TEST
- Check the recorded results from the BCM self-test.
- Is DTC C113A:11 or DTC C113A:15 recorded?
- Yes : GO to PINPOINT TEST D .
- No : GO to C2.
C2 CHECK FOR VOLTAGE TO THE PATS TRANSCEIVER
- Disconnect: PATS Transceiver C252.
- Ignition ON.
- Measure the voltage between the PATS transceiver C252-1, circuit CE436 (VT/OG), harness side and the PATS transceiver C252-2, circuit GD133 (BK).
  
  Fig 1: Measuring Voltage Between PATS Transceiver C252-1, Circuit CE436 (VT/OG) And PATS Transceiver C252-2, Circuit GD133 (BK)
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to C4.
- No : GO to C3.
C3 CHECK THE PATS TRANSCEIVER VOLTAGE SUPPLY CIRCUIT
- Measure the voltage between the PATS transceiver C252-1, circuit CE436 (VT/OG), harness side and ground.
  
  Fig 2: Measuring Voltage Between PATS Transceiver Harness Connector Terminal And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : REPAIR circuit GD133 (BK) for an open. CLEAR the DTCs. REPEAT the self-test.
- No : VERIFY the BCM fuse 18 (10A) is OK. If OK, REPAIR circuit CE436 (VT/OG) for an open. If not OK, REFER to the OEM ELECTRICAL WIRING DIAGRAM INTRODUCTION article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the self-test.
C4 CHECK THE PATS TRANSCEIVER CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: BCM C2280B.
- Ignition ON.
- Measure the voltage between the PATS transceiver C252-3, circuit VRT24 (YE/OG), harness side and ground; and between the PATS transceiver C252-4, circuit VRT23 (VT/GY), harness side and ground.
  
  Fig 3: Measuring Voltage Between PATS Transceiver Transceiver Harness Connector Terminals And Ground
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes : REPAIR the circuit in question for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
- No : GO to C5.
C5 CHECK THE PATS TRANSCEIVER CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure the resistance between the PATS transceiver C252-3, circuit VRT24 (YE/OG), harness side and ground; and between the PATS transceiver C252-4, circuit VRT23 (VT/GY), harness side and ground.
  
  Fig 4: Measuring Resistance Between PATS Transceiver C252 Transceiver Harness Connector Terminals And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10, 000 ohms?
- Yes : GO to C6.
- No : REPAIR the circuit in question for a short to ground. CLEAR the DTCs. REPEAT the self-test.

C6 CHECK THE PATS TRANSCEIVER CIRCUITS FOR AN OPEN

Measure the resistance between the BCM, harness side and the PATS transceiver, harness side as follows:

BCM Connector-Pin	Circuit	PATS Transceiver Connector-Pin
C2280B-36	VRT23 (VT/GY)	C252-4
C2280B-37	VRT24 (YE/OG)	C252-3

Fig 5: Measuring Resistance Between BCM And PATS Transceiver

Courtesy of FORD MOTOR CO.

Are the resistances less than 5 ohms?

Yes : INSTALL a new PATS transceiver. REFER to PASSIVE ANTI-THEFT SYSTEM (PATS) TRANSCEIVER . CLEAR the DTCs. REPEAT the self-test.
If DTC B10D9:87 is retrieved again, GO to C7.
No : REPAIR the circuit in question for an open. CLEAR the DTCs. REPEAT the self-test.

C7 CHECK FOR CORRECT BCM OPERATION
- Disconnect the BCM connectors.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the BCM connectors and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new BCM. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.