B220B

B220B-00-OCCUPANT RESTRAINT CONTROLLER FIRING STORED ENERGY

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation
When powered, The Occupant Restraint Controller (ORC) performs a self test of the capacitors used to initiate the squib deployment circuits in the event of collision detection. The repair of this fault condition does not involve any external circuitry and centers on verifying the integrity of these capacitors.
- When Monitored:
The ORC checks the status and capacitance of the stored energy reserve at power up during the initialization process, and continuously through the ignition cycle.

- Set Condition:
This DTC will set if the ORC detects a malfunction with the capacitors or internal circuitry used to initiate the squib deployment circuits. Once set, this DTC is latched for the entire ignition cycle. If two consecutive internal faults related to the roll over sensor are detected in one ignition cycle, the DTC is set as active indefinitely.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.
REPLACE OCCUPANT RESTRAINT CONTROLLER
1. Turn the ignition on.
2. With the scan tool, erase and read ORC DTCs.

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 take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.

When this code is set, view repair.

Repair

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