Diagnostic Test

VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

NOTE:

Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.

Turn the ignition on.
With the scan tool, read ORC DTCs.
Is the U0167-LOST COMMUNICATION WITH INTRUSION TRANSCEIVER CONTROL MODULE DTC active?

Yes
- Refer to U0167-LOST COMMUNICATION WITH INTRUSION TRANSCEIVER CONTROL MODULE and perform the U0167-Lost Communication with Intrusion Transceiver Control Module diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the Stored Lost Communication DTCs diagnostic procedure.