No Response From ORC (Occupant Restraint Controller Module)

*NO RESPONSE FROM ORC (OCCUPANT RESTRAINT CONTROLLER)





For a complete wiring diagram Consult Diagrams/Electrical.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.

Turn the ignition on.

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

With the scan tool, select ECU View.

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. (Z912) (Z915) GROUND CIRCUITS OPEN




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

Disconnect the Occupant Restraint Controller Module harness connectors.
Connect the appropriate Load Tool ACM Adaptor to the ORC connectors.
Measure the resistance between ground and the (Z912) and (Z915) ground circuits.
Is the resistance below 10k ohms?

Yes

- Go To 3

No

- Repair the (Z912) or (Z915) ground circuit for an open.
- Perform the AIRBAG VERIFICATION TEST - VER 1 Airbag System Verification Test.

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




NOTE: Check the TIPM for any ignition related DTCs before proceeding. If set diagnose and repair DTC's.

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

Using a 12-volt test light connected to ground, check the (F100) Fused Run Relay Output circuit.
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 the AIRBAG VERIFICATION TEST - VER 1 Airbag System Verification Test.

4. (F201) FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED




Using a 12-volt test light connected to ground, check the (F201) Fused Run/Start Relay Output circuit.
Does the test light illuminate brightly?

Yes

- Go To 5

No

- Repair the (F201) Fused Run/Start Relay Output circuit for an open or short.
- Perform the AIRBAG VERIFICATION TEST - VER 1 Airbag System Verification Test.

5. (D65) CAN C BUS (+) CIRCUIT OPEN




Turn the ignition off.
Disconnect the TIPM C1 harness connector.
Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C1 harness connector and the Occupant Restraint Controller Module connector.
Is resistance below 5.0 ohms?

Yes

- Go To 6

No

- Repair the (D65) CAN C Bus (+) circuit for an open.
- Perform the AIRBAG VERIFICATION TEST - VER 1 Airbag System Verification Test.

6. (D64) CAN C BUS (-) CIRCUIT OPEN




Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C1 harness connector and the Occupant Restraint Controller Module connector.
Is resistance below 5.0 ohms?

Yes

- Replace the Occupant Restraint Controller Module.
- Perform the AIRBAG VERIFICATION TEST - VER 1 Airbag System Verification Test.

No

- Repair the (D64) CAN C Bus (-) circuit for an open.
- Perform the AIRBAG VERIFICATION TEST - VER 1 Airbag System Verification Test.