Test Notes

Inoperative Lamp Circuit Or No Ignition Voltage To Diagnostic Monitor

Normal Operation
The air bag indicator is designed to illuminate 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 pins 1 and 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 illuminate.

If the computer in the diagnostic monitor detects an open in the air bag indicator circuit and if another system fault exists, then the 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 key is in the ON position. The five beeps do not indicate a code five or any other code. The indicator circuitry 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 an open circuit in the wiring for the air bag indicator circuit.
2. Loss of ignition voltage at pins 1 and 6 of the diagnostic monitor.