Test Notes

Normal Operation

NOTE: During normal operation the air bag indicator will be lit continuously for 6 seconds after the ignition switch is placed in the RUN position and after five cycles of a Lamp Fault Code (LFC) if a fault exists. Be sure to cycle the ignition switch and look for a 6 seconds indicator prove-out without LFCs.

The air bag Electronic Crash Sensor (ECS) module will communicate Diagnostic Trouble Codes (DTCs) through the New Generation Star (NGS) Tester using the Data Link Connector (DLC). If the NGS Tester displays NO COMMUNICATION when retrieving continuous DTCs, use this pinpoint test to troubleshoot the system.

Possible Causes
An air bag indicator that is illuminated continuously could be caused by one of the following:
^ the battery or ignition circuit damaged
^ the ECS module disconnected from the vehicle harness
^ a loss of ECS module ground circuits
^ the ECS module inoperative
^ the NGS Tester damaged