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 COMBINATION METER INPUT SIGNAL
- Turn ignition switch ON.
- Check voltage between combination meter harness connector M24 terminal 9 and ground.
9 - Ground When driver seat belt is fastened : Approx. 12V When driver seat belt is unfastened : Approx. 0V
Is the inspection result normal?
YES
Replace combination meter. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 2
- CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
- Turn ignition switch OFF.
- Disconnect combination meter harness connector M24 and seat belt buckle switch (driver seat) harness connector B221.
- Check continuity between combination meter harness connector M24 terminal 9 and seat belt buckle switch (driver seat) harness connector B221 terminal 4.
9 - 4 : Continuity should exist. - Check continuity between combination meter harness connector M24 terminal 9 and ground.
9 - Ground : Continuity should not exist.
Is the inspection result normal?
YES
GO TO STEP 3
NO
Repair or replace harness or connectors.
- CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check continuity between seat belt buckle switch (driver seat) harness connector B221 terminal 3 and ground.
3 - Ground : Continuity should exist. Is the inspection result normal?
YES
Inspection End.
NO
Repair or replace harness or connectors.