B2458

B2458 LOCAL COMM





Description
Consists of driver seat side control unit and passenger seat side control unit.




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 - B2458.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK PRE-CRASH-SEAT BELT CONTROL UNIT (PASSENGER SIDE)
Check pre-crash seat belt control unit (passenger side) power supply. B2456.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace harness between pre-crash seat belt control unit (passenger side) connector and fusible link.
2.CHECK LOCAL COMMUNICATION LINE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect pre-crash seat belt control unit (driver side and passenger side) connector.
3. Check continuity between local communication line harness connector.





4. Check continuity between pre-crash seat belt control unit (driver side) harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace local communication line.
3.REPLACE PRE-CRASH SEAT BELT CONTROL UNIT (PASSENGER SIDE)
1. Replace pre-crash seat belt control unit (passenger side)
2. Check "Self-diagnostic result" with CONSULT-III.
Is DTC detected?
YES - GO TO 4.
NO - INSPECTION END
4.REPLACE PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
1. Replace pre-crash seat belt control unit (driver side)
2. Check "Self-diagnostic result" with CONSULT-III.
Is DTC detected?
YES - GO TO 5.
NO - INSPECTION END
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END