Air Bag Diagnostic System Check

AIR BAG DIAGNOSTIC SYSTEM CHECK

WARNING: TO AVOID DEPLOYMENT WHEN TROUBLESHOOTING THE AIR BAG SYSTEM, DO NOT USE ELECTRICAL TEST EQUIPMENT SUCH AS A BATTERY POWERED OR AC POWERED VOLTMETER, OHMMETER, ETC., OR ANY TYPE OF ELECTRICAL EQUIPMENT OTHER THAN THAT SPECIFIED IN THIS MANUAL. DO NOT USE A NON-POWERED PROBE TYPE TESTER.

Instructions in this manual must be followed carefully. otherwise personal injury may result.

CAUTION: The order in which diagnostic trouble codes are diagnosed is very important. Failure to diagnose the diagnostic trouble codes in the order specified may result in extended diagnostic time, incorrect diagnosis and incorrect parts replacement.

The diagnostic procedures used in this section are designed to find and repair air bag system malfunctions. To get the best results, it is important to use the diagnostic charts and follow the sequence listed below.





A. PERFORM THE "AIR BAG DIAGNOSTIC SYSTEM CHECK".
The "Air Bag Diagnostic System Check" must be the starting point of any air bag system diagnostics. The "Air Bag Diagnostic System Check" checks for proper "AIR BAG" warning lamp operation, the ability of the SDM to communicate through the "Serial Data" line or "AIR BAG" warning lamp and whether air bag diagnostic trouble codes exist.

B. REFER TO THE PROPER DIAGNOSTIC CHART AS DIRECTED BY THE "AIR BAG DIAGNOSTIC SYSTEM CHECK".
The "Air Bag Diagnostic System Check" will lead you to the correct chart to diagnose any air bag system malfunctions. Bypassing these procedures may result in extended diagnostic time, incorrect diagnosis and incorrect parts replacement.

C. REPEAT THE "AIR BAG DIAGNOSTIC SYSTEM CHECK" AFTER ANY REPAIR OR DIAGNOSTIC PROCEDURES HAVE BEEN PERFORMED.
Performing the "Air Bag Diagnostic System Check" after all repair or diagnostic procedures will ensure that the repair has been made correctly and that no other malfunctions exist.

NOTES ON SYSTEM CHECK CHART:

Number(s) below refer to circled number(s) on the Air Bag Diagnostic System Check Chart.

The "AIR BAG" warning lamp should flash 7 times after ignition is first turned "ON". This test checks for proper operation of the "Serial Data" line. This test will also identify the stored diagnostic trouble codes and whether they are current or history.