DTC B1881, B1882, B1883, B1886

id080200801500

DTC

B1881

Passenger-side pre-tensioner seat belt system resistance high

B1882

Passenger-side pre-tensioner seat belt system circuit short to power supply

B1883

Passenger-side pre-tensioner seat belt system circuit short to ground

B1886

Passenger-side pre-tensioner seat belt 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 1.5-3.1 ohm) detected in passenger-side pre-tensioner seat belt circuit
• Malfunction in wiring harness between passenger-side pre-tensioner seat belt and SAS unit

POSSIBLE CAUSE

• Open or short circuit in wiring harness between passenger-side pre-tensioner seat belt and SAS unit
• Passenger-side pre-tensioner seat belt malfunction
• SAS unit malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT PASSENGER-SIDE PRE-TENSIONER SEAT BELT
• Check following PID/DATA monitor, using SST (WDS or equivalent).
- PS_PTENS
• Is resistant value of passenger-side pre-tensioner seat belt normal?
- Resistance: 1.5-3.1 ohm
Yes
Present malfunction diagnosis:
• Replace SAS unit.
Past malfunction diagnosis:
• Troubleshooting completed.
No
Go to next step.
2
INSPECT PASSENGER-SIDE PRE-TENSIONER SEAT BELT 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 passenger's side B-pillar lower trim.
• Disconnect passenger-side pre-tensioner seat belt connector.
• Is there cracking or chipping in passenger-side pre-tensioner seat belt connector?
Yes
Replace wiring harness.
No
Go to next step.
3
VERIFY WHETHER MALFUNCTION IS IN PASSENGER-SIDE PRE-TENSIONER SEAT BELT OR RELATED WIRING HARNESS
• Connect leads of SST (Fuel and thermometer checker) or apply 2 ohm resistor to passenger-side pre-tensioner seat belt 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).
- PSB_P_ST
• Is related wiring harness normal?
Yes
Replace passenger-side pre-tensioner seat belt.
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 pre-tensioner seat belt connector.
• Are DTCs B1881, B1882, B1883 and/or B1886 indicated?
Yes
Present malfunction diagnosis:
• Replace SAS unit.
Past malfunction diagnosis:
• Troubleshooting completed.
No
Troubleshooting completed.