Pinpoint Test Ab : Pinpoint Test Ab: The DCSM Does Not Respond To The Scan Tool

WARNING: This page is about a different car, the 2016 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If a seat equipped with a Supplemental Restraint System (SRS) component is being serviced, the SRS must be depowered. Refer to Supplemental Restraint System .

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery, Mounting and Cables .

AB1 CHECK THE DCSM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

For vehicles with seat (side) air bags, carry out the following:
- Depower the SRS. Refer to Supplemental Restraint System .
- Connect the negative battery cable.

Disconnect: DCSM C3265A .

Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3265A-E	CBX01 (GN/RD)	-	Ground
C3265A-F	CBX01 (GN/RD)	-	Ground

Courtesy of FORD MOTOR COMPANY

Are the voltages greater than 11 volts?

Yes	GO to AB2.
No	VERIFY the Battery Junction Box (BJB) fuse 28 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM WIRING DIAGRAMS to identify the possible causes of the circuit short.

AB2 CHECK THE DCSM GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: Negative Battery Cable.

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3265A-M	GD903 (BK/WH)	-	Ground

Courtesy of FORD MOTOR COMPANY

Is the resistance less than 3 ohms?

Yes	GO to AB3.
No	REPAIR the circuit.

AB3 CHECK THE MS-CAN CIRCUITS BETWEEN THE DCSM AND THE DLC FOR AN OPEN

Disconnect: DCSM C3265C .

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3265C-1	VDB06 (GY/OG)	C251-3	VDB06 (GY/OG)
C3265C-2	VDB07 (VT/OG)	C251-11	VDB07 (VT/OG)

Courtesy of FORD MOTOR COMPANY

Are the resistances less than 3 ohms?

Yes	GO to AB4.
No	REPAIR the circuit in question.

AB4 CHECK FOR CORRECT DCSM OPERATION

Disconnect all the DCSM connectors.

Repair:
- corrosion (replace connector or terminals - clean module pins)
- damaged or bent pins - replace terminals/pins
- pushed-out pins - replace pins as necessary

Connect all the DCSM connectors and make sure they seat correctly.

Operate the system and verify the concern is still present.

Is the concern still present?

Yes	CHECK 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 DCSM. REFER to Seating .
No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.