Air Bag Systems: Testing and Inspection

For testing of the Air Bag System, refer to Body Control Module, Testing and Inspection.

PROCEDURE

NOTE: A DRB scan tool is required for diagnosis of the airbag system. See the proper Diagnostic Procedures for more information.

16-Way Data Link Connector - Typical:

1. Connect the DRB scan tool to the 16-way data link wire harness connector. The connector is located on the driver side lower edge of the instrument panel, outboard of the steering column.
2. Turn the ignition switch to the ON position. Exit the vehicle with the DRB. Be certain that the DRB contains the latest version of the proper DRB software.
3. Using the DRB, read and record the active Diagnostic Trouble Code (DTC) data.
4. Read and record any stored DTC data.
5. See the proper Diagnostic Procedures if any DTC is found in Step 3 or Step 4.
6. After completing the necessary repairs, try to erase the stored DTC data. If any problems remain the stored DTC data will not erase. See the proper Diagnostic Procedures to diagnose any stored DTC that will not erase.
7. With the ignition switch still in the ON position, check to be certain that nobody is in the vehicle.
8. From outside of the vehicle (away from the airbags in case of an accidental deployment) turn the ignition switch to the OFF position for about ten seconds, and then back to the ON position. Observe the airbag indicator lamp in the instrument cluster. It should light for six to eight seconds, and then go out. This indicates that the airbag system is functioning normally

NOTE: If the airbag indicator lamp fails to light, or lights and stays on, there is an airbag system malfunction. See the proper Diagnostic Procedures to diagnose the problem.

AIRBAG TROUBLE CODES
The Airbag Control Module may report any of the following diagnostic trouble codes.

For the following active or stored codes, replace the Airbag Control Module (ACM):
- AECM Accelerometer
- Internal Diagnostic 1
- Internal Diagnostic 2
- AECM Output Driver
- AECM Stored Energy Logic
- AECM Stored Energy Driver
- AECM Stored Energy Passenger
- Internal Diagnostic 3
- Internal Diagnostic 4
- Safing Sensor Shorted

For these codes, refer to the appropriate diagnostic procedure:
- Driver Squib Circuit Open
- Driver Squib Circuit Shorted
- Loss of Ignition Run Only
- Loss of Ignition Run/Start
- No Cluster CCD Bus Message
- No CCD Communication
- Passenger Squib Circuit Open
- Passenger Squib Circuit Shorted
- Either Squib Term Shorted to Battery
- Either Squib Term Shorted to Ground
- Warning Lamp Circuit Open/Shorted