Pinpoint Test

1. Ignition OFF.
2. Wait one minute.
3. Disconnect: OCSM.
4. Ignition ON.
5. Measure:

   OCSM			Ground
   C3159			Ground
   Pin	Circuit	Measurement	Pin	Circuit
   1	CBX02 (BN/RD) (with power seats) CBX02 (YE/BU) (without power seats)		-	-

Is the voltage greater than 11 volts? 

1. Yes: GO to 2  .
2. No: VERIFY the BCM fuse 33 (10A) is OK. If OK, REPAIR the circuit. 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:

   OCSM			Ground
   C3159			Ground
   Pin	Circuit	Measurement	Pin	Circuit
   4	GD901 (BK)		-	-

Is the resistance less than 3 ohms? 

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

1. Measure:

   OCSM			DLC
   C3159			C251
   Pin	Circuit	Measurement	Pin	Circuit
   2	VDB04 (WH/BU)		6	VDB04 (WH/BU)
   3	VDB05 (WH)		14	VDB05 (WH)

Are the resistances less than 3 ohms? 

1. Yes: CONNECT the negative battery cable. GO to 4  .
2. No: REPAIR the circuit in question.

1. Ignition OFF.
2. Disconnect and inspect the OCSM connector.
3. 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
4. Reconnect the OCSM 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 OCS sensor. REFER to OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR .
2. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.