DTC B2229, B2231, B2233, B2235

id080200802200

DTC

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

B2233

Passenger-side air bag module (inflator No.2) system resistance high

B2235

Passenger-side air bag module (inflator No.2) system resistance low

DETECTION CONDITION

Warning
• Detection conditions are for understanding DTC outline before performing inspection. Performing inspection with only detection conditions may cause injury due to operating error or damage the system. When performing inspection, always follow inspection procedure.
• 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

POSSIBLE CAUSE

• Open or short circuit in wiring harness between passenger-side air bag module (inflator No.2) and SAS unit
• Passenger-side air bag module (inflator No.2) malfunction
• SAS unit malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT PASSENGER-SIDE AIR BAG MODULE (INFLATOR NO.2)
• Check following PID/DATA monitor, using SST (WDS or equivalent).
- P_ABAGR2
• Is resistant value of passenger-side air bag module normal?
- Resistance: 1.4-2.9 ohm
Yes
Present malfunction diagnosis:
• Replace SAS unit.
Past malfunction diagnosis:
• Troubleshooting completed.
No
Go to next step.
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 SERVICE WARNINGS)
• 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?
Yes
Replace wiring harness.
No
Go to next step.
3
VERIFY WHETHER MALFUNCTION IS IN PASSENGER-SIDE AIR BAG MODULE (INFLATOR NO.2) OR RELATED WIRING HARNESS
• Connect leads of SST (Fuel and thermometer checker) or apply 2 ohm resistor to passenger-side air bag module (inflator No.1) connector terminal A and B, and passenger-side air bag module (inflator No.2) connector terminal A and B.
• Set resistance of SST (Fuel and thermometer checker) to 2 ohm.
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Check following PID/DATA monitor, using SST (WDS or equivalent).
- DO_PAB2ST
• Is related wiring harness normal?
Yes
Replace passenger-side air bag module.
No
Replace wiring harness, then go to next step.
4
INSPECT SAS UNIT
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Connect passenger-side air bag module connector.
• Are DTCs B2229, B2231, B2233 and/or B2235 indicated?
Yes
Present malfunction diagnosis:
• Replace SAS unit.
Past malfunction diagnosis:
• Troubleshooting completed.
No
Troubleshooting completed.