Occupant Restraint Controller (ORC)

B210D-BATTERY VOLTAGE LOW

Special Tools:










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

Theory of Operation

The Occupant Restraint Controller module (ORC) receives power from both a fused run relay output and fused ignition switch output circuit from the Totally Integrated Power Module (TIPM). These circuits power the ORC and the capacitors used to initiate the squib deployment circuits in the event of collision detection.

- When Monitored:
While the Occupant Restraint Controller (ORC) CAN bus ignition status received is RUN or Signal Not Available (SNA), the module checks the (F100) Fused Run relay Output circuit and (F201) Fused Ignition Switch Output (Run/Start) circuit voltage input range. The monitoring type is continuous and the monitoring rate is every 100ms.

- Set Condition:The code will be set active if the ORC detects when both the Ignition (Run Only) and Ignition (Run-Start) supply circuits voltage is less than 9 volts for 15 seconds. The code will go from active to stored if the Ignition (Run Only) or Ignition (Run-Start) voltage is more than 9 volts for 5 seconds.






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.

1. VERIFY THAT DTC B210D-BATTERY VOLTAGE LOW IS ACTIVE

NOTE: Make sure the battery is fully charged.

NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.

1. Turn the ignition on.
2. With the scan tool, read the Occupant Restraint Controller (ORC) DTCs.

Does the scan tool display active: B210D-BATTERY VOLTAGE LOW?

Yes

- Go To 2

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Restraints System Intermittent Condition Test.

2. CHECK VOLTAGE OF ORC (F100) FUSED RUN RELAY OUTPUT AND (F201) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUITS.





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.

1. Disconnect the ORC connectors.

NOTE: Check the connectors - Clean and repair as necessary.

2. Connect the (8443-24) Adaptor to the ORC C2 connector.If equipped with the standard key ignition, use this ignition on warning.

WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
If equipped with the keyless ignition, use this ignition on warning.

WARNING: Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

3. Measure the voltage between Ground and the appropriate terminals for the (F201) Fused Ignition Switch Output (Run-Start) circuit at the (8443-24).
4. Measure the voltage between Ground and the appropriate terminals of the (F100) Fused Run Relay Output circuit at the (8443-24).

Is the voltage above 9 volts on both circuits?

Yes

- 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.

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

No

- Repair the (F100) Fused Run Relay Output and/or (F201) Fused Ignition Switch Output (Run-Start) circuits for an open or high resistance.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.