B2454

Description

- When control unit activates pre-crush seat belt system, it retracts the shoulder belt with the electric motor and reduces seat belt slack.
- Power supply is supplied constantly from battery power supply.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. SELF-DIAGNOSIS WITH PRE-CRASH SEAT BELT CONTROL UNIT

1.Turn ignition switch ON.
2.Check "Self-diagnostic result" with CONSULT.
Is DTC detected?
YES- Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.





Is the inspection result normal?
YES- GO TO 2.
NO- Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.

2. CHECK PRE-CRASH SEAT BELT MOTOR POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect pre-crash seat belt control unit connector.
3.Check voltage between pre-crash seat belt control unit harness connector and ground.





Is the inspection result normal?
YES- Replace pre-crash seat belt control unit. Refer to"Removal and Installation" Removal and Installation.
NO- Repair or replace harness between pre-crash seat belt control unit and fusible link.