Diagnostic Strategies

1. With the battery negative remote cable disconnected, connect the DRB III scan tool to the Data Link connector.
2. Turn the ignition key to the ON position. Exit vehicle with the scan tool.
3. After checking that no one is inside the vehicle, connect the battery negative remote terminal.
4. Read and record the ACTIVE Diagnostic Trouble Code (DTC) data.
5. Read and record any STORED DTC's.
6. Refer to the proper Body Diagnostic Procedures manual if any DTC's are found in Step 4 and Step 5.
7. Erase stored DTC's if there are no active codes. If problems remain, DTC's will not erase. Refer to the proper Body Diagnostic Procedures manual to diagnose the problem. If the airbag warning lamp either fails to light, or goes on and stays on, there is a system malfunction. Refer to the proper Body Diagnostic Procedures manual to diagnose the problem. To test the airbag warning lamp operation in the cluster only, refer to Electrical, Instrument Cluster, Diagnosis and Testing - Instrument Cluster.