Pinpoint Test

1. Ignition OFF.
2. Disconnect: ATCM.
3. Ignition ON.
4. Measure:

   ATCM			Ground
   C3639			Ground
   Pin	Circuit	Measurement	Pin	Circuit
   1	CBP35 (YE/GY)		-	-

Are the voltages greater than 11 volts? 

1. Yes: GO to 2  .
2. No: VERIFY the BCM fuse 35 (5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to OEM FUSE AND RELAY INFORMATION and OEM WIRING DIAGRAMS .

1. Ignition OFF.
2. Measure:

   ATCM			Ground
   C3639			Ground
   Pin	Circuit	Measurement	Pin	Circuit
   7	GD214 (BK/BU)		-	-

Is the resistance less than 3 ohms? 

1. Yes: GO to 3  .
2. No: REPAIR the circuit in question.

1. Measure:

   ATCM			DLC
   C3639			C251
   Pin	Circuit	Measurement	Pin	Circuit
   3	VDB04 (WH/BU)		6	VDB04 (WH/BU)
   6	VDB05 (WH)		14	VDB05 (WH)

Are the resistances less than 3 ohms? 

1. Yes: GO to 4  .
2. No: REPAIR the circuit in question.

1. Ignition OFF.
2. Disconnect and inspect the ATCM connector.
3. Repair:
   • corrosion (replace connector or terminals - clean module pins)
   • damaged or bent pins - replace terminals/pins
   • pushed-out pins - replace pins as necessary
4. Reconnect the ATCM connector. Make sure it seats and latches correctly.
5. Operate the system and verify the concern is still present.

Is the concern still present? 

1. 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 ATCM. REFER to ALL TERRAIN CONTROL MODULE (ATCM) .
2. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.