Inspection Procedure
- PREPARATION
Refer to PREPARATION OF INSPECTION .
- CHECK BPT RESISTANCECAUTION: Never attempt to measure the circuit resistance of the airbag module (squib) with an ohmmeter.
- Connect the Dummy and the Dummy Adapter on BPT harness connector.
- Refer to " GENERAL INFORMATION - RESTRAINT " for the SST No. of Dummy and Dummy Adapter.
- Measure resistance between the terminal 39 (37) and 40 (38) of SRSCM harness connector.
Specification (resistance) : 1.4 ~ 4.5 Ω
- Is the measured resistance within specification?
YES
- Replace the Seat Belt Pretensioner (BPT) module.
NO
- Check open circuit.
- Connect the Dummy and the Dummy Adapter on BPT harness connector.
- CHECK OPEN CIRCUIT
- Measure resistance between the terminal 2 of BPT harness connector and the terminal 40 (38) of SRSCM harness connector.
- Measure resistance between the terminal 1 of BPT harness connector and the terminal 39 (37) of SRSCM harness connector.
Specification (resistance) : below 1 Ω
- Is the measured resistance within specification?
YES
- Check short circuit.
NO
- Repair or replace the wiring harness between the BPT and the SRSCM.
- CHECK SHORT CIRCUIT
- Measure resistance between the terminal 1 and 2 of BPT harness connector.
Specification (resistance) : infinite
- Is the measured resistance within specification?
YES
- Go to next step.
NO
- Repair or replace the wiring harness between the BPT and the SRSCM.
- Measure resistance between the terminal 1 and 2 of BPT harness connector.
- CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN .