Air Bag Warning Lamp Troubleshooting

Foreword
Read and understand the basic flow of troubleshooting in order to properly perform the procedures.

Malfunction Symptoms:

Troubleshooting Index
Use the chart to verify the symptoms of the trouble in order to diagnose the appropriate area.

For the steps which have an asterisk (*), shake the wiring harness which is connected to the connector while performing the inspection. (The cause of the malfunction may be a poor connection of the connector, terminal, or wiring harness.)

Part 1 Of 2:

Part 2 Of 2:

1. Air bag system warning light does not illuminate when ignition switch is turned ON.

NOTE:
The following may be the cause of trouble if the result of the following troubleshooting is normal.

1. Poor contact at L terminal of short connector (15-pin) between instrument cluster and SAS unit.
2. Simultaneous poor contact at both terminals S and X of the SAS unit connector (21-pin).
3. Simultaneous poor contact at both terminals AB and Z of the SAS unit connector (21-pin).
4. Simultaneous poor contact in wiring harness between S terminal of the SAS unit connector (21-pin) and ground, X terminal of the SAS unit connector (21-pin) and ground.
5. Simultaneous open or short ground in wiring harness between METER 15 A fuse and the SAS unit, ENGINE 15 A fuse and the SAS unit.





2. Air bag system warning light illuminates immediately after ignition switch is turned ON and remains illuminated.