Suzuki SY413 Service Manual page 2487

9J-18 AIR BAG SYSTEM
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 equip-
ment 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 flow tables and follow the sequence listed below.
A. PERFORM THE "AIR BAG DIAGNOSTIC SYSTEM CHECK FLOW TABLE"
The "AIR BAG DIAGNOSTIC SYSTEM CHECK FLOW TABLE" must be the starting point of any air bag system
diagnostics. The "AIR BAG DIAGNOSTIC SYSTEM CHECK FLOW TABLE" checks for proper "AIR BAG" warn-
ing lamp operation, the ability of the SDM to communicate through "AIR BAG" warning lamp and whether air
bag diagnostic trouble codes exist.
B. REFER TO THE PROPER DIAGNOSTIC TABLE AS DIRECTED BY THE "AIR BAG DIAGNOSTIC SYSTEM
CHECK FLOW TABLE".
The "AIR BAG DIAGNOSTIC SYSTEM CHECK FLOW TABLE" will lead you to the correct table 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 FLOW TABLE" AFTER ANY REPAIR OR DIAGNOS-
TIC PROCEDURES HAVE BEEN PERFORMED.
Performing the "AIR BAG DIAGNOSTIC SYSTEM CHECK FLOW TABLE" after all repair or diagnostic proce-
dures will ensure that the repair has been made correctly and that no other malfunctions exist.
FLOW TABLE TEST DESCRIPTION
STEP 1: Check that "AIR BAG" warning lamp lights.
STEP 2: Check diagnosis switch circuit.
STEP 3: Check that "AIR BAG" warning lamp turns off about 6 seconds after ignition switch is turned ON.
STEP 4: Check that history codes are in SDM memory.
STEP 5: Check that current code is in SDM memory.