Reverse Signal Circuit

REVERSE SIGNAL CIRCUIT


Description

A reverse signal is supplied from the back-up lamp relay to the rear view camera control unit. When this signal is received, the display shows a view to the rear of the vehicle.




REVERSE SIGNAL CIRCUIT


Diagnosis Procedure

1.BACK-UP LAMP INSPECTION
1. Turn ignition switch ON.
2. Shift selector lever to R position.
Does back-up lamp illuminate?
YES - GO TO 2
NO - Check back-up lamp system. Refer to Work Flow.
2.CHECK REVERSE POSITION INPUT SIGNAL
With CONSULT-III
Select "DATA MONITOR" of "REARVIEW CAMERA". Operate ignition switch with "R POSI SIG" of "DATA
MONITOR" and check operate status.
Without CONSULT-III





1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
3. Turn ignition switch ON.
4. Shift selector lever to R position.
5. Check voltage between rear view camera control unit harness connector B31 terminal 4 and ground.

Battery voltage should exist.

Does battery voltage exist?
YES - Inspection End.
NO - Check harness for open or short between rear view camera control unit and back-up lamp relay.