*NO RESPONSE FROM ORC (OCCUPANT RESTRAINT CONTROLLER)





For a complete wiring diagram Refer to Section 8W.



Possible Causes
  
(Z104) GROUND CIRCUIT OPEN
  
(F100) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
  
(F20) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR SHORTED
  
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
  
OCCUPANT RESTRAINT CONTROLLER MODULE
  



Diagnostic Test

1.TEST FOR INTERMITTENT CONDITION


NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.



NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.



Does the scan tool display a red X next to the module?

Yes
  • Go To 2


No
  • The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.

2.(Z104) GROUND CIRCUIT OPEN



WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.






Does the test light illuminate brightly?

Yes
  • Go To 3


No
  • Repair the (Z104) ground circuit for an open.
  • Perform AIRBAG VERIFICATION TEST - VER 1.

3.(F100) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED



NOTE: Check the FCM for any ignition related DTCs before proceeding. If set (Refer to 8 - ELECTRICAL/IGNITION CONTROL - DIAGNOSIS AND TESTING).


WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.




Does the test light illuminate brightly?

Yes
  • Go To 4


No
  • Repair the (F100) Fused Run Relay Output circuit for an open or short.
  • Perform AIRBAG VERIFICATION TEST - VER 1.

4.(F20) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR SHORTED





Does the test light illuminate brightly?

Yes
  • Go To 5


No
  • Repair the (F20) Fused Ignition Switch Output (RUN/START) circuit for an open or short.
  • Perform AIRBAG VERIFICATION TEST - VER 1.

5.(D55) AND (D54) CAN B BUS CIRCUITS OPEN


WARNING: If the Occupant Restraint Controller is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and personal injury or death.


NOTE: One open circuit will not cause this condition.





Is there any voltage present on either circuit?

Yes
  • Replace the Occupant Restraint Controller Module in accordance with the service information.
  • Perform AIRBAG VERIFICATION TEST - VER 1.


No
  • Repair the (D55) and (D54) CAN B Bus circuits for an open. Inspect the connector for damage.
  • Perform AIRBAG VERIFICATION TEST - VER 1.