Operation CHARM: Car repair manuals for everyone.
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No PCI Loopback







NO PCI LOOPBACK





For a complete wiring diagram Consult Diagrams/Electrical.

Theory of Operation

When powered, the Occupant Restraint Controller (ORC) broadcasts messages on the Bus. The ORC on-board diagnostic monitors the Bus for valid ORC messages.

- When Monitored:
With the ignition on.

- Set Condition:
The ORC will set this DTC immediately if valid ORC messages are not detected on the Bus. NOTE: Any Bus Failure may cause a stored code to set.





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

Diagnostic Test

1. DETERMINE ACTIVE OR STORED DTC
NOTE: Ensure that the battery is fully charged.

Turn the ignition on.
With the scan tool, read the ORC DTC.
Does the scan tool display an active: NO PCI LOOPBACK DTC?

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: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

- Replace the ORC.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests

No

- Perform *RESTRAINTS SYSTEM INTERMITTENT TEST. Restraints System Intermittent Test