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.

- When Monitored:
The ORC checks the status of firing stored energy circuit at power up during the initialization process, and continuously through the ignition cycle.

- Set Condition:
This DTC sets when a fault is detected internal to ORC firing stored energy circuit. Once set, this DTC is latched for an entire power cycle. If the same failure is detected in two consecutive cycles, this DTC is latched active indefinitely.





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

NOTE: The airbag warning lamp in the Cab Compartment Node/CCN (Instrument Cluster) sets.
REPLACE OCCUPANT RESTRAINT CONTROLLER
1. Turn the ignition on.

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 is dropped at any time, it must be replaced. Failure to take proper precautions can result in accidental airbag deployment and serious or fatal injury.

When this code is set, view repair.

Repair

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