Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check pre-crash seat belt control unit power supply and ground circuit. Refer to DIAGNOSIS PROCEDURE .
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace malfunctioning parts.
- CHECK LOCAL COMMUNICATION LINE CIRCUIT
- Turn ignition switch OFF.
- Disconnect pre-crash seat belt control unit (driver side and passenger side) harness connector.
- Check continuity between pre-crash seat belt control unit (driver side) harness connector and pre-crash seat belt control unit (passenger side).
Pre-crash seat belt control unit (driver side) Pre-crash seat belt control unit (passenger side) Continuity Connector Terminal Connector Terminal B58 8 B160 8 Yes 16 16 - Check continuity between pre-crash seat belt control unit (driver side) harness connector and ground.
Pre-crash seat belt control unit (driver side) Ground Continuity Connector Terminal B58 8 No 16
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace harness or connector.
- REPLACE PRE-CRASH SEAT BELT CONTROL UNIT (PASSENGER SIDE)
- Replace pre-crash seat belt control unit (passenger side). Refer to REMOVAL AND INSTALLATION .
- Check Self-diagnostic result with CONSULT.
Is DTC detected?
YES
GO TO STEP 4 .
NO
Inspection End.
- REPLACE PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
- Replace pre-crash seat belt control unit (driver side). Refer to REMOVAL AND INSTALLATION .
- Check Self-diagnostic result with CONSULT.
Is DTC detected?
YES
GO TO STEP 5 .
NO
Inspection End.
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.