Mazda 6 2002 Workshop Manual page 1069

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
DTC B2229, B2231, B2233, B2235
B2229 Passenger-side air bag module (inflator No.2) system circuit short to ground
B2231 Passenger-side air bag module (inflator No.2) system circuit short to power supply
DTC
B2233 Passenger-side air bag module (inflator No.2) system resistance high
B2235 Passenger-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 1.4—2.9 ohm) detected in passenger-side air bag module circuit
• Malfunction in wiring harness between passenger-side air bag module (inflator No.2) and SAS unit
• Open or short circuit in wiring harness between passenger-side air bag module (inflator No.2) and SAS
POSSIBLE unit
CAUSE • Passenger-side air bag module (inflator No.2) malfunction
• SAS unit malfunction
Diagnostic procedure
STEP
1 INSPECT PASSENGER-SIDE AIR BAG
MODULE (INFLATOR NO.2)
• Check following PID/DATA monitor, using
SST (WDS or equivalent).
(See T–195 PID/DATA MONITOR
— P_ABAGR2
• Is resistant value of passenger-side air bag
module normal?
— Resistance: 1.4—2.9 ohm
2 INSPECT PASSENGER-SIDE AIR BAG
MODULE (INFLATOR NO.2) CONNECTOR
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 glove compartment.
• Disconnect passenger-side air bag module
connector.
• Is there cracking or chipping in passenger-
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.
A6E817401046W18
ACTION
REMOVAL/INSTALLATION)
T–217
T