B1363
DTC B1363 DBPT SHORT TO GROUNDDTC B1369 PBPT SHORT TO GROUND
DTC DESCRIPTION
The Seat Belt Pretensioner consists of the SRSCM and two Seat Belt Pretensioner (BPT).
The SRSCM sets above DTC(s) if it detects short to ground on the BPT circuit.
DTC Detecting Condition:
Schematic Diagram:
TERMINAL & CONNECTOR INSPECTION
1. Visually inspect all connectors related to the affected circuit for damage and secure connection.
2. Inspect terminals for damage and corrosion.
CAUTION: Avoid damaging connectors during the inspection process.
3. Are any problems found?
NO - Go to next step.
YES - After repairing the trouble part, check whether DTC occurs or not.
INSPECTION PROCEDURE
1. PREPARATION
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal from the battery and wait for at least 3 minutes.
3. Remove the DAB module and disconnect the DAB connector.
4. Disconnect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
5. Disconnect the SRSCM connector.
2. CHECK SHORT TO GROUND
1. Measure resistance between the terminal 1 of BPT harness connector and chassis ground.
Specification (resistance) : infinite
Is the measured resistance within specification?
YES - Check the BPT Module.
NO - Repair or replace the wiring harness between the BPT and the SRSCM.
3. CHECK THE BPT MODULE
1. Replace the Belt Pretensioner (BPT) with a new one.
2. Install the DAB module and connect the DAB connector.
3. Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
4. Connect the SRSCM connector.
5. Connect the negative (-) terminal to the battery.
6. Connect a Hi-Scan (Pro) to the data link connector.
7. Turn the ignition switch to ON and check the vehicle again.
Does Hi-Scan (Pro) indicate any DTC related to Belt Pretensioner (BPT)?
YES - Go to next step.
NO - Replace BPT module.
4. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
1. Install the DAB module and connect the DAB connector.
2. Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
3. Connect the SRSCM connector.
4. Connect the negative (-) terminal to the battery.
5. Connect a Hi-Scan (Pro) to the data link connector.
6. Turn the ignition switch to ON.
7. Clear the DTC stored in the SRSCM memory with the Hi-Scan (Pro).
8. Turn the ignition switch to LOCK and wait for at least 30 seconds.
9. Turn the ignition switch to ON and wait for at least 30 seconds.
10. Check the vehicle again with the Hi-Scan (Pro).
Does the above DTC(s) go off?
YES - Problem is intermittent or was repaired and SRSCM memory was not cleared.
NO - Replace the SRSCM with a new one, and then check the vehicle again. At this time, if the vehicle normally operates with a new SRSCM, the fault may be the SRSCM (Replace SRSCM).