Diagnostic Test

VERIFY THE DTC IS ACTIVE
1. Using the scan tool, read the DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Refer to DIAGNOSIS AND TESTING and perform the No Response from ORC diagnostic procedure.
VERIFY THAT THE OCCUPANT RESTRAINT CONTROLLER (ORC) IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. Using the scan tool, select Network Diagnostics.
3. Verify that the ORC is active on the bus.
  Is the ORC active on the bus?
  
  Yes
  - Go To 3
  No
  - Perform the U0151-87 Lost Communication with ORC diagnostic procedure. Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX .
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
WARNING:
To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.
1. Replace the Anti-Lock Brakes System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL .
2. Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
3. Using the scan tool, read ABS DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Occupant Restraint Controller (ORC) in accordance with the Service Information. Refer to CONTROLLER, OCCUPANT RESTRAINT (ORC), REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Test complete.