B2456

B2456 SEAT BLT PWR AS





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-III.
Is DTC detected?
YES - SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK FUSE AND FUSIBLE LINK
Check that the following fusible link is not blown.





Is the inspection result normal?
YES - GO TO 2.
NO - Replace the blown 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 (passenger side) connector.
3. Check voltage between pre-crash seat belt control unit (passenger side) harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness between pre-crash seat belt control unit (passenger side) and fusible link.
3.CHECK SELF DIAGNOSTIC RESULT
1. Connect pre-crash seat belt control unit (passenger side) connector.
2. Turn ignition switch ON.
3. Check "Self-diagnostic result" with CONSULT-III.
4. Touch "ERASE".
5. Perform DTC Confirmation Procedure.
See SEE DTC Logic.
Is DTC B2456 displayed again?
YES - Replace pre-crash seat belt control unit (passenger side).
NO - GO TO 4.
4.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END