Reverse Signal Circuit

PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM: Reverse Signal Circuit

Reverse Signal Circuit

DESCRIPTION

The multi-display receives a reverse signal from the main body ECU LH (cowl side junction block LH).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK BACK-UP LIGHT
(a) Move the shift lever to R and check if the back-up light comes on.
OK:
The back-up light comes on.
NG -- GO TO LIGHTING SYSTEM
OK -- Continue to next step.
2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)





(a) Enter the "Display Check" mode (Vehicle Signal Check Mode) Description and Operation.
(b) Check that the display changes between ON and OFF according to the shift lever operation (P and R).
OK:





HINT: This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch.

NG -- INSPECT MULTI-DISPLAY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
3. INSPECT MULTI-DISPLAY





(a) Disconnect the J50 connector from the multi-display.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:






NG -- CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - MAIN BODY ECU LH)
OK -- REPLACE MULTI-DISPLAY
4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - MAIN BODY ECU LH)





(a) Disconnect the Q2 connector from the main body ECU LH (cowl side junction block LH).





(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (JUNCTION CONNECTOR - MAIN BODY ECU LH)





(a) Disconnect the LJ connector from the main body ECU LH (cowl side junction block LH).
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU LH