Pinpoint Test D : B10D9:87

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. 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.

D1 REVIEW THE BCM DTCs FROM THE ON-DEMAND SELF-TEST
- Review the BCM DTCs from the on-demand self-test.
Is DTC C113A:11 or C113A:15 present?

Yes GO to Pinpoint Test E .

No GO to D2.

D2 CHECK THE PATS TRANSCEIVER VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: PATS Transceiver C252 .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C252-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes	GO to D3.
No	VERIFY the BCM fuse 18 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM Electrical Wiring Diagram Introduction to identify the possible causes of the circuit short.

D3 CHECK THE PATS TRANSCEIVER GROUND CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C252-1	Courtesy of FORD MOTOR COMPANY	C252-2

Is the voltage greater than 11 volts?

Yes	GO to D4.
No	REPAIR the circuit.

D4 CHECK THE PATS TRANSCEIVER CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect: BCM C2280B .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C252-3	Courtesy of FORD MOTOR COMPANY	Ground
C252-4	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit in question.
No	GO to D5.

D5 CHECK THE PATS TRANSCEIVER CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C252-3	Courtesy of FORD MOTOR COMPANY	Ground
C252-4	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes	GO to D6.
No	REPAIR the circuit in question.

D6 CHECK THE PATS TRANSCEIVER CIRCUITS FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C252-3	Courtesy of FORD MOTOR COMPANY	C2280B-37
C252-4	Courtesy of FORD MOTOR COMPANY	C2280B-36

Are the resistances less than 3 ohms?

Yes	INSTALL a new PATS transceiver. REFER to Passive Anti-Theft System (PATS) Transceiver . CLEAR the DTCs and REPEAT the BCM self-test. If DTC B10D9:87 is retrieved again, GO to D7.
No	REPAIR the circuit in question.

D7 CHECK FOR CORRECT BCM OPERATION

Disconnect and inspect all the BCM 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 BCM 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, BCM Hardware Testing .
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.