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

DESCRIPTION

The video signals of the rear television camera assembly are transmitted to the radio and display receiver assembly.

WIRING DIAGRAM

A01TC06E09

PROCEDURE


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

    Result
    Proceed to
    OK
    NG

    1. Disconnect the E125 radio and display receiver assembly connector.

    2. Disconnect the L73 rear television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E125-11 (CA+) - L73-6 (CB+) Always Below 1 Ω
      E125-12 (V+) - L73-3 (CV+) Always Below 1 Ω
      E125-24 (V-) - L73-2 (CV-) Always Below 1 Ω
      E125-23 (CGND) - L73-5 (CGND) Always Below 1 Ω
      E125-11 (CA+) - Body ground Always 10 kΩ or higher
      E125-12 (V+) - Body ground Always 10 kΩ or higher
      E125-24 (V-) - Body ground Always 10 kΩ or higher
      E125-23 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

    Result
    Proceed to
    OK
    NG

    1. Reconnect the E125 radio and display receiver assembly connector.

    2. A01TC35C11
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E125-24 (V-) - Body ground Always Below 1 Ω
      E125-23 (CGND) - 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
      E125-11 (CA+) - E125-23 (CGND) Ignition switch ACC 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  3. INSPECT REAR TELEVISION CAMERA ASSEMBLY

    Result
    Proceed to
    OK
    NG

    1. Reconnect the L73 rear television camera assembly connector.

    2. A01TBP3C03
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)
      A01TB5VC01
      *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

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

      Tech Tips

      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 E125-12 (V+) - E1-7 (GND1)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Ignition switch ON, shift lever in R

      Tech Tips

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

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here