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

DESCRIPTION

The display signal from the rear television camera assembly transmits to the radio and display assembly.

WIRING DIAGRAM

A005H8FE11
*a (Shielded)
*b Rear Television Camera Assembly
*c Radio and Display Assembly

PROCEDURE


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


    1. Disconnect the F48 connector from the radio and display assembly.

    2. Disconnect the P3 connector from the rear television camera assembly.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F48-7 (CA+) - P3-6 (CB+) Always Below 1 Ω
      F48-8 (V+) - P3-3 (CV+) Always Below 1 Ω
      F48-15 (CGND) - P3-5 (CGND) Always Below 1 Ω
      F48-16 (V-) - P3-2 (CV-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      F48-7 (CA+) - Body ground Always 10 kΩ or higher
      F48-8 (V+) - Body ground Always 10 kΩ or higher
      F48-15 (CGND) - Body ground Always 10 kΩ or higher
      F48-16 (V-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT RADIO AND DISPLAY ASSEMBLY

    A005HE9E02
    Text in Illustration
    *a

    Component with harness connected

    (Radio and Display Assembly)

    1. Reconnect the F48 connector to the radio and display assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F48-16 (V-) - Body ground Always Below 1 Ω
      F48-15 (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
      F48-7 (CA+) - F48-15 (CGND)

      Ignition switch ON

      Shift lever in R

      		 5.5 to 7.0 V

    NG

    REPLACE RADIO AND DISPLAY ASSEMBLY Click here

    OK

  3. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the P3 connector to the rear television camera assembly.

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

      Tech Tips

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

      A005K78E02
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Assembly)

      		 *b Waveform 1 (under normal conditions)
      *c Waveform 2 (camera lens is covered, blacking out the screen) *d Synchronized Signal
      *e Video Waveform - -
      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) F48-8 (V+) - F48-16 (V-)
      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 rear television camera assembly.


    OK

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

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here