REAR VIEW MONITOR SYSTEM > Image from Camera for Rear View Monitor is Abnormal

for Preparation Click here


DESCRIPTION

The display signal of the rear television camera assembly is transmitted to the inner rear view mirror assembly.

WIRING DIAGRAM


E222378E01


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (INNER REAR VIEW MIRROR - REAR TELEVISION CAMERA)

  1. Disconnect the T9 connector from the inner rear view mirror assembly.

  1. Disconnect the V8 connector from the rear television camera assembly.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    T9-7 (CV+) - V8-2 (CV+)
    		Always
    		Below 1 Ω
    T9-14 (CB+) - V8-4 (CB+)
    		Always
    		Below 1 Ω
    T9-6 (CV-) - V8-1 (CV-)
    		Always
    		Below 1 Ω
    T9-13 (CGND) - V8-3 (CGND)
    		Always
    		Below 1 Ω
    T9-7 (CV+) - Body ground
    		Always
    		10 kΩ or higher
    T9-14 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    T9-6 (CV-) - Body ground
    		Always
    		10 kΩ or higher
    T9-13 (CGND) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK INNER REAR VIEW MIRROR ASSEMBLY


    E183360E14

  1. Reconnect the T9 connector to the inner rear view mirror assembly.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    T9-14 (CB+) - T9-13 (CGND)
    		Power switch on (READY)
    Reverse (R) selected
    		5.5 to 7.0 V

    Text in Illustration 
    *a
    		Component with harness connected
    (Inner Rear View Mirror Assembly)



NG
REPLACE INNER REAR VIEW MIRROR ASSEMBLY (Click here)
OK


3.CHECK REAR TELEVISION CAMERA ASSEMBLY

  1. Reconnect the V8 connector to the rear television camera assembly.



    E222963E01

  1. Check the waveform of the rear television camera assembly using an oscilloscope.

    HINT:
    A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the inner rear view mirror assembly with the connector connected.

    OK:
    Waveform is similar to that shown in the illustration.

    Item
    		Content
    Terminal No. (Symbol)
    		T9-7 (CV+) - T9-2 (E)
    Tool Setting
    		200 mV/DIV., 50 μsec./DIV.
    Condition
    		Power switch on (READY), reverse (R) selected

    HINT:
    The video waveform changes according to the image sent by the rear television camera assembly.

    Text in Illustration 
    *a
    		Component with harness connected
    (Inner Rear View Mirror Assembly)
    *b
    		Waveform 1 (camera lens is not covered, displaying an image)
    *c
    		Waveform 2 (camera lens is covered, blacking out the screen)
    *d
    		Synchronization Signal
    *e
    		Video Waveform



NG
REPLACE REAR TELEVISION CAMERA ASSEMBLY (Click here)
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)