No Airbag Indicator - Inoperative Indicator Circuit

NO AIR BAG INDICATOR

Inoperative Indicator Circuit or No Ignition Voltage to Diagnostic Monitor

Normal Operation
The AIR BAG indicator is designed to light for 6 (±2) seconds when the ignition switch is turned to RUN. 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 air bag diagnostic monitor requires power at Pin 1 in order to energize the AIR BAG indicator circuit. If the air bag indicator circuit is open or if the air bag diagnostic monitor does not have ignition voltage at Pin 1, the AIR BAG indicator will not light.

If the computer in the air bag diagnostic monitor detects an open in the AIR BAG indicator circuit and if another system fault exists1 then the air bag diagnostic monitor will turn on its internal tone generator (beeper). The beep pattern is five sets of five beeps. The pattern is repeated every 30 minutes while the ignition switch is in RUN. The five beeps do not indicate a code five or any other code. The AIR BAG indicator circuit must be repaired before the fault code can be read.

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 of the air bag diagnostic monitor.

Electrical Schematic-No Air Bag Indicator:

NAB1 - NAB2: