The Seat Belt Pretensioner consists of the SRSCM and two Seat Belt Pretensioners (BPT). The SRSCM sets above DTC(s) if it detects short to ground on the BPT circuit.
DTC | Condition | Probable cause |
B1363 B1369 | ● Short to ground between BPT and SRSCM ● Seat Belt Pretensioner (BPT) Malfunction ● SRSCM Malfunction | ● Short to ground circuit on wiring harness ● Seat Belt Pretensioner (BPT) squib ● SRSCM |
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
CHECK SHORT TO GROUND
Measure resistance between the terminal 2 of BPT harness connector and chassis ground.
Specification (resistance) : infinite
Is the measured resistance within specification?
▶Check the BPT Module.
▶ Repair or replace the wiring harness between the BPT and the SRSCM.
CHECK THE BPT MODULE
Replace the Belt Pretensioner (BPT) with a new one.
● Refer to "Belt Pretensioner (BPT)" section in this SERVICE MANUAL.
Install the DAB module and connect the DAB connector.
Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
Connect the SRSCM connector.
Connect the battery negative cable to the battery.
Connect a Hi-Scan(Pro) to the data link connector.
Turn the ignition switch to ON and check the vehicle again.
Does Hi-Scan (Pro) indicate any DTC related to Belt Pretensioner (BPT)?
▶Go to next step.
▶Replace BPT module.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING part.
