Mazda 6 2002 Workshop Manual page 1060

DTC B1913, B1916, B1932, B1934
B1913 Driver-side air bag module (inflator No.1) system circuit short to ground
B1916 Driver-side air bag module (inflator No.1) system circuit short to power supply
DTC
B1932 Driver-side air bag module (inflator No.1) system resistance high
B1934 Driver-side air bag module (inflator No.1) system resistance low
Warning
• • • • Detection conditions are for understanding DTC outline before performing inspection.
DETECTION
CONDITION
• Abnormal resistance (other than 1.5—3.7 ohm) detected in driver-side air bag module (inflator No.1)
circuit
• Malfunction in wiring harness between driver-side air bag module (inflator No.1) and SAS unit
• Open or short circuit in wiring harness between clock spring and SAS unit
POSSIBLE • Clock spring malfunction
CAUSE • Driver-side air bag module (inflator No.1) malfunction
• SAS unit malfunction
Diagnostic procedure
STEP
1 INSPECT DRIVER-SIDE AIR BAG MODULE
(INFLATOR NO.1)
• Check following PID/DATA monitor, using
SST (WDS or equivalent).
(See T–195 PID/DATA MONITOR
— DABAGR
• Is resistant value of driver-side air bag
module normal?
— Resistance: 1.5—3.7 ohm
2 INSPECT DRIVER-SIDE AIR BAG MODULE
CONNECTOR (CLOCK SPRING)
Warning
• • • • Handling air bag system components
improperly can accidentally deploy air
bag modules and pre-tensioner seat
belts, which may seriously injure you.
Read AIR BAG SYSTEM SERVICE
WARNINGS before handling air bag
system components.
(See T–117 SERVICE
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait
for more than 1 minute.
• Remove driver-side air bag module.
• Is there cracking or chipping in driver-side air
bag module connector?
T–208
ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
Performing inspection with only detection conditions may cause injury due to operating error
or damage the system. When performing inspection, always follow inspection procedure.
INSPECTION
TABLE)
WARNINGS)
Yes [Present malfunction diagnosis]
Replace SAS unit.
(See T–124 SAS UNIT
[Part malfunction diagnosis]
Troubleshooting completed.
No Go to net step.
Yes Replace wiring harness.
No Go to net step.
A6E817401046W12
ACTION
REMOVAL/INSTALLATION)