B220B

B220B-OCCUPANT RESTRAINT CONTROLLER FIRING STORED ENERGY

Theory of Operation

When powered, the Occupant Restraint Controller (ORC) performs an internal self test. The repair of this fault condition does not involve any external circuitry and centers on verifying the integrity of the module's internal circuitry and software validity

- When Monitored:
The ORC checks the status and validity of the internal operating hardware and software at power up during the initialization process, and continuously through the ignition cycle.

- Set Condition:
This DTC will set if the module identifies an out of range internal circuit.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.
REPLACE OCCUPANT RESTRAINT CONTROLLER

NOTE: When this DTC is set, the module self test has discovered an internal fault that cannot be repaired and the module must be replaced regardless of DTC status.

When this code is set do not clear codes, view repair.

Repair

- 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.

- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.

- Replace the Occupant Restraint Controller.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.