NAB: No Air Bag Indicator

Electrical Schematic:

Normal Operation
The air bag indicator is designed to light for 6 (±2) seconds when the ignition key is turned to the ON position. This initial 6 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 at Pin 1 or Pin 6 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 Pins 1 and 6, 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 Pins 1 and 6 of the diagnostic monitor.

Pinpoint Test Steps:

NAB1 - NAB2: