OCM Configuration Mismatch

OCM CONFIGURATION MISMATCH



Theory of Operation

When powered, the Occupant Restraint Controller (ORC) monitors the Bus for the Occupant Classification Module (OCM) messages and then compares the messages to the known ORC configuration. The repair of this fault does not involve any external circuitry and centers on verifying the module is configured correctly for the vehicle's restraint system components.

- When Monitored:
At ignition on.

- Set Condition:
The ORC will set this DTC if the OCM is broadcasting messages on the Bus and the ORC is not configured for OCM.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.

1. DETERMINE ACTIVE OR STORED DTC

NOTE: Ensure that the battery is fully charged.

1. With the scan tool, read the ORC DTC.

Select ACTIVE or STORED DTC:

ACTIVE DTC

- Go To 2

STORED DTC

- Erase the DTC, test complete.

2. VERIFY THAT THE PCM IS PROGRAMMED WITH THE CORRECT VIN
1. With the scan tool, select System Tests and select VIN Verification.
2. Compare the VIN displayed by the scan tool and the VIN on the Vehicle VIN plate.

Does the current VIN match the VIN on the vehicle VIN plate?

Yes

- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and serious or fatal injury.
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

- Replace the ORC.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Replace and program the PCM.
- Perform the POWERTRAIN VERIFICATION TEST. PCM Verification Test.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.