Test Notes
Normal OperationThe air bag indicator is designed to illuminate for approximately six seconds when the ignition key is turned to the ON position. This initial six seconds of air bag indicator illumination (continuous lamp) is considered normal operation and is called "prove-out" of the air bag indicator.
The diagnostic monitor requires power on Pin 1 in order to energize the air bag indicator circuit. if the air bag indicator circuit is open or the diagnostic monitor does not have ignition voltage at Pin 1, the air bag indicator will not light.
Possible Causes
A No Air Bag indicator condition can be caused by:
1. A burned out bulb or open wiring in the air bag Indicator circuit.
2. Loss of ignition voltage at Pin 1 and Pin 6 of the diagnostic monitor.