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

for Preparation Click here


DESCRIPTION

  1. The video signal of the rear television camera assembly is transmitted to the navigation receiver assembly*1 or radio and display receiver assembly*2.
    *1: for Navigation System (for Navigation Receiver Type)
    *2: for Audio and Visual System (for Radio and Display Type)

WIRING DIAGRAM


E303956E01


INSPECTION PROCEDURE

1.CONFIRM MODEL

  1. Choose the model to be inspected.

    Result:
    Result
    		Proceed to
    for Navigation System (for Navigation Receiver Type)
    		A
    for Audio and Visual System (for Radio and Display Type)
    		B


B
Go to step 5
A


2.CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)

  1. Disconnect the I184 navigation receiver assembly connector.

  1. Disconnect the T6 rear television camera assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    I184-11 (CA+) - T6-6 (CB+)
    		Always
    		Below 1 Ω
    I184-12 (V+) - T6-3 (CV+)
    		Always
    		Below 1 Ω
    I184-24 (V-) - T6-2 (CV-)
    		Always
    		Below 1 Ω
    I184-23 (CGND) - T6-5 (CGND)
    		Always
    		Below 1 Ω
    I184-11 (CA+) - Body ground
    		Always
    		10 kΩ or higher
    I184-12 (V+) - Body ground
    		Always
    		10 kΩ or higher
    I184-24 (V-) - Body ground
    		Always
    		10 kΩ or higher
    I184-23 (CGND) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT NAVIGATION RECEIVER ASSEMBLY

  1. Reconnect the I184 navigation receiver assembly connector.



    E289196E12

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    I184-23 (CGND) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    I184-11 (CA+) - I184-23 (CGND)
    		Ignition switch ACC
    		5.5 to 7.05 V
    Text in Illustration 
    *a
    		Component with harness connected
    (Navigation Receiver Assembly)

Result:
Result
Proceed to
OK
A
NG (for TMC, TMMR Made)
B
NG (for TMMK Made)
C


B
REPLACE NAVIGATION RECEIVER ASSEMBLY (for TMC, TMMR Made) (Click here)

C
REPLACE NAVIGATION RECEIVER ASSEMBLY (for TMMK Made) (Click here)
A


4.INSPECT REAR TELEVISION CAMERA ASSEMBLY

  1. Reconnect the T6 rear television camera assembly connector.



    E289197E11
    E171712E35

  1. Using an oscilloscope, check the waveform of the rear television camera assembly.

    Text in Illustration 
    *a
    		Component with harness connected
    (Navigation Receiver Assembly)

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

    OK:
    Waveform is similar to that shown in the illustration.
    Item
    		Content
    Measurement terminal
    		I184-12 (V+) - I64-7 (GND1)
    Measurement setting
    		200 mV/DIV., 50 μs./DIV.
    Condition
    		Ignition switch ON, shift lever in R

    HINT:
    1. The video waveform changes according to the image sent by the rear television camera assembly.
    2. The video waveform is constantly output when the ignition switch is turned to ACC.
    Text in Illustration 
    *a
    		Waveform 1 (camera lens is not covered, displaying an image)
    *b
    		Waveform 2 (camera lens is covered, blacking out the screen)
    *c
    		Synchronization Signal
    *d
    		Video Waveform

Result:
Result
Proceed to
OK (for TMC, TMMR Made)
A
OK (for TMMK Made)
B
NG (for TMC, TMMR Made)
C
NG (for TMMK Made)
D


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

C
REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMC, TMMR Made) (Click here)

D
REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMMK Made) (Click here)
A

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

5.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)

  1. Disconnect the I185 radio and display receiver assembly connector.

  1. Disconnect the T6 rear television camera assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    I185-11 (CA+) - T6-6 (CB+)
    		Always
    		Below 1 Ω
    I185-12 (V+) - T6-3 (CV+)
    		Always
    		Below 1 Ω
    I185-24 (V-) - T6-2 (CV-)
    		Always
    		Below 1 Ω
    I185-23 (CGND) - T6-5 (CGND)
    		Always
    		Below 1 Ω
    I185-11 (CA+) - Body ground
    		Always
    		10 kΩ or higher
    I185-12 (V+) - Body ground
    		Always
    		10 kΩ or higher
    I185-24 (V-) - Body ground
    		Always
    		10 kΩ or higher
    I185-23 (CGND) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

  1. Reconnect the I185 radio and display receiver assembly connector.



    E289196E13

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    I185-23 (CGND) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    I185-11 (CA+) - I185-23 (CGND)
    		Ignition switch ACC
    		5.5 to 7.05 V
    Text in Illustration 
    *a
    		Component with harness connected
    (Radio and Display Receiver Assembly)

Result:
Result
Proceed to
OK
A
NG (for TMC, TMMR Made)
B
NG (for TMMK Made)
C


B
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMC, TMMR Made) (Click here)

C
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMMK Made) (Click here)
A


7.INSPECT REAR TELEVISION CAMERA ASSEMBLY

  1. Reconnect the T6 rear television camera assembly connector.



    E289197E12
    E171712E35

  1. Using an oscilloscope, check the waveform of the rear television camera assembly.

    Text in Illustration 
    *a
    		Component with harness connected
    (Radio and Display Receiver Assembly)

    HINT:
    A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.

    OK:
    Waveform is similar to that shown in the illustration.
    Item
    		Content
    Measurement terminal
    		I185-12 (V+) - I152-7 (GND1)
    Measurement setting
    		200 mV/DIV., 50 μs./DIV.
    Condition
    		Ignition switch ON, shift lever in R

    HINT:
    1. The video waveform changes according to the image sent by the rear television camera assembly.
    2. The video waveform is constantly output when the ignition switch is turned to ACC.
    Text in Illustration 
    *a
    		Waveform 1 (camera lens is not covered, displaying an image)
    *b
    		Waveform 2 (camera lens is covered, blacking out the screen)
    *c
    		Synchronization Signal
    *d
    		Video Waveform

Result:
Result
Proceed to
OK (for TMC, TMMR Made)
A
OK (for TMMK Made)
B
NG (for TMC, TMMR Made)
C
NG (for TMMK Made)
D


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

C
REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMC, TMMR Made) (Click here)

D
REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMMK Made) (Click here)
A

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