B2458

B2458 LOCAL COMM





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 POWER SUPPLY AND GROUND CIRCUIT
Check pre-crash seat belt control unit power supply and ground circuit. B2456.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace malfunctioning parts.
2.CHECK LOCAL COMMUNICATION LINE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect pre-crash seat belt control unit (driver side and passenger side) harness connector.
3. Check continuity between pre-crash seat belt control unit (driver side) harness connector and pre-crash seat belt control unit (passenger side).





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 harness or connector.
3.REPLACE PRE-CRASH SEAT BELT CONTROL UNIT (PASSENGER SIDE)
1. Replace pre-crash seat belt control unit (passenger side). Removal And Installation.
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). Removal And Installation.
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