Mazda 6 2002 Workshop Manual page 1067

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
DTC B2228, B2230, B2232, B2234
B2228 Driver-side air bag module (inflator No.2) system circuit short to ground
B2230 Driver-side air bag module (inflator No.2) system circuit short to power supply
DTC
B2232 Driver-side air bag module (inflator No.2) system resistance high
B2234 Driver-side air bag module (inflator No.2) system resistance low
Warning
• • • • Detection conditions are for understanding DTC outline before performing inspection.
Performing inspection with only detection conditions may cause injury due to operating error
DETECTION
or damage the system. When performing inspection, always follow inspection procedure.
CONDITION
• Abnormal resistance (other than 1.5—3.7 ohm) detected in driver-side air bag module (inflator No.2)
circuit
• Malfunction in wiring harness between driver-side air bag module (inflator No.2) 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.2) malfunction
• SAS unit malfunction
Diagnostic procedure
STEP
1 INSPECT DRIVER-SIDE AIR BAG MODULE
(INFLATOR NO.2)
• Check following PID/DATA monitor, using
SST (WDS or equivalent).
(See T–195 PID/DATA MONITOR
— D_ABAGR2
• 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?
INSPECTION
TABLE)
WARNINGS)
Yes Present malfunction diagnosis:
• Replace SAS unit.
(See T–124 SAS UNIT
Past malfunction diagnosis:
• Troubleshooting completed.
No Go to net step.
Yes Replace wiring harness.
No Go to net step.
A6E817401046W17
ACTION
REMOVAL/INSTALLATION)
T–215
T