Q: B1892-Air Bag Tone Warning Indicator Ckt Short to Gnd/Open

Normal Operation
The air bag Electronic Crash Sensor (ECS) module monitors its connection to the Lighting Control Module (LCM) at pin 13. This connection is used to signal a chime if the air bag indicator is inoperative and another Supplemental Restraint System (SRS) fault exists. If the ECS detects a short to battery or open on the connection to the LCM, it will store a Diagnostic Trouble Code (DTC) B1892 in memory.

Possible Causes
The air bag tone warning indicator circuit short to ground or open can be caused by:
- a short to ground or open on circuit 1083 (LB/BK).
- a damaged or inoperative LCM.

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