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

DESCRIPTION

The display signal of the television camera assembly is transmitted to the radio and display receiver assembly*1 or navigation ECU sub-assembly*2.


WIRING DIAGRAM

A00YWU9E03

PROCEDURE


  1. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Proceed to
      w/o Navigation System
      w/ Navigation System

    w/ Navigation System

    CHECK HARNESS AND CONNECTOR (TELEVISION CAMERA ASSEMBLY - NAVIGATION ECU SUB-ASSEMBLY AND BODY GROUND) Click here

    w/o Navigation System

  2. CHECK HARNESS AND CONNECTOR (TELEVISION CAMERA ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY AND BODY GROUND)


    1. Disconnect the G144 radio and display receiver assembly connector.

    2. Disconnect the U6 television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G144-7 (CA+) - U6-6 (CB+) Always Below 1 Ω
      G144-8 (V+) - U6-3 (CV+) Always Below 1 Ω
      G144-16 (V-) - U6-2 (CV-) Always Below 1 Ω
      G144-15 (CGND) - U6-5 (CGND) Always Below 1 Ω
      G141-7 (GND1) - Boby ground Always Below 1 Ω
      G144-7 (CA+) - Body ground Always 10 kΩ or higher
      G144-8 (V+) - Body ground Always 10 kΩ or higher
      G144-16 (V-) - Body ground Always 10 kΩ or higher
      G144-15 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (V-, CGND, CA+)


    1. A00YSRLC18
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      Reconnect the G144 radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G144-15 (CGND) - Body ground Always Below 1 Ω
      G144-16 (V-) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G144-7 (CA+) - Body ground Ignition switch ON, shift lever in R 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  4. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (V+, GND1)


    1. Reconnect the U6 television camera assembly connector.

      A00YWR7C07
      *a

      Component with harness connected

      (Radio and Display Receiver 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 - -

    2. Check the waveform of the television camera assembly using an oscilloscope.

      Tech Tips

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

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) G144-8 (V+) - G141-7 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Ignition switch ON, shift lever in R

      Tech Tips

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

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE TELEVISION CAMERA ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (TELEVISION CAMERA ASSEMBLY - NAVIGATION ECU SUB-ASSEMBLY AND BODY GROUND)


    1. Disconnect the G49 navigation ECU sub-assembly connector.

    2. Disconnect the U6 television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G49-7 (CA+) - U6-6 (CB+) Always Below 1 Ω
      G49-8 (V+) - U6-3 (CV+) Always Below 1 Ω
      G49-16 (V-) - U6-2 (CV-) Always Below 1 Ω
      G49-15 (CGND) - U6-5 (CGND) Always Below 1 Ω
      G137-7 (GND1) - Body ground Always Below 1 Ω
      G49-7 (CA+) - Body ground Always 10 kΩ or higher
      G49-8 (V+) - Body ground Always 10 kΩ or higher
      G49-16 (V-) - Body ground Always 10 kΩ or higher
      G49-15 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK NAVIGATION ECU SUB-ASSEMBLY (V-, CGND, CA+)


    1. A00YSRLC17
      *a

      Component with harness connected

      (Navigation ECU Sub-assembly)

      Reconnect the G49 navigation ECU sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G49-15 (CGND) - Body ground Always Below 1 Ω
      G49-16 (V-) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G49-7 (CA+) - Body ground Ignition switch ON, shift lever in R 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

    OK

  7. CHECK NAVIGATION ECU SUB-ASSEMBLY (V+, GND1)


    1. Reconnect the U6 television camera assembly connector.

      A00YWR7C08
      *a

      Component with harness connected

      (Navigation ECU Sub-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 - -

    2. Check the waveform of the television camera assembly using an oscilloscope.

      Tech Tips

      A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the navigation ECU sub-assembly with the connector connected.

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) G49-8 (V+) - G137-7 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Ignition switch ON, shift lever in R

      Tech Tips

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

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

    NG

    REPLACE TELEVISION CAMERA ASSEMBLY Click here