Reverse Signal Circuit

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (W/ Multi-display): Reverse Signal Circuit

Reverse Signal Circuit

DESCRIPTION

The multi-display receives a reverse signal from the rear junction block ECU and then adjusts vehicle position.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK BACK-UP LIGHT
(a) Move the shift lever to the R position.
(b) Check the back-up light.
OK:
The back-up light is 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) Display Check Mode
(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 -- CHECK REAR JUNCTION BLOCK ECU
OK -- REPLACE MULTI-DISPLAY
3. CHECK REAR JUNCTION BLOCK ECU




(a) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU)
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - REAR JUNCTION BLOCK ECU)




(a) Disconnect the L59 display connectors.
(b) Disconnect the S63 ECU connectors.
(c) 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 MULTI-DISPLAY




(a) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPLACE MULTI-DISPLAY
OK -- REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU)