U1431

Description

The communications line (METER VSP) sends signals needed for VSP system control from the combination meter.


DTC Logic


DTC DETECTION LOGIC




Diagnosis Procedure

VSP) SIGNAL CIRCUIT

1. CHECK COMMUNICATION LINE (METER [ADD PUNCTUATION/SYMBOL]

1.Power switch OFF
2.Disconnect VSP control unit and combination meter connector.
3.Check continuity between VSP control unit harness connector and combination meter harness connector.





4.Check continuity between VSP control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair harness or connector.
VSP) INPUT SIGNAL

2. CHECK COMMUNICATION LINE (METER [ADD PUNCTUATION/SYMBOL]

1.Connect VSP control unit and combination meter connector.
2.Power switch ON.
3.Check voltage between VSP control unit harness connector and ground.










Is the inspection result normal?
YES- INSPECTION END
NO- Replace combination meter. Refer to "Removal and Installation" Removal And Installation.