REAR VIEW MONITOR SYSTEM (for Navigation Receiver Type) Image from Camera for Rear View Monitor is Abnormal

DESCRIPTION

This is the display signal circuit between the navigation receiver assembly and the rear television camera assembly.

WIRING DIAGRAM

A01DUM3E03

INSPECTION PROCEDURE

PROCEDURE


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


    1. Disconnect the H55 navigation receiver assembly connector.

    2. Disconnect the X9*1 or v2*2 rear television camera assembly connector.


      • *1: w/ Tire Carrier

      • *2: w/o Tire Carrier

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

      Standard Resistance
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      H55-11 (CA+) - X9-6 (CB+) Always Below 1 Ω
      H55-12 (V+) - X9-3 (CV+) Always Below 1 Ω
      H55-23 (CGND) - X9-5 (CGND) Always Below 1 Ω
      H55-24 (V-) - X9-2 (CV-) Always Below 1 Ω
      H55-11 (CA+) - Body ground Always 10 kΩ or higher
      H55-12 (V+) - Body ground Always 10 kΩ or higher
      H55-23 (CGND) - Body ground Always 10 kΩ or higher
      H55-24 (V-) - Body ground Always 10 kΩ or higher
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      H55-11 (CA+) - v2-6 (CB+) Always Below 1 Ω
      H55-12 (V+) - v2-3 (CV+) Always Below 1 Ω
      H55-23 (CGND) - v2-5 (CGND) Always Below 1 Ω
      H55-24 (V-) - v2-2 (CV-) Always Below 1 Ω
      H55-11 (CA+) - Body ground Always 10 kΩ or higher
      H55-12 (V+) - Body ground Always 10 kΩ or higher
      H55-23 (CGND) - Body ground Always 10 kΩ or higher
      H55-24 (V-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK NAVIGATION RECEIVER ASSEMBLY


    1. A01DM1GE06
      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H55-23 (CGND) - Body ground Always Below 1 Ω
      H55-24 (V-) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      H55-11 (CA+) - Body ground Ignition switch ON 5.5 to 7.05 V

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  3. CHECK REAR TELEVISION CAMERA ASSEMBLY


    1. Using an oscilloscope, check the waveform.

      A01DONHE12
      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronized Signal
      *e Video Waveform - -
      Measurement Condition
      Item Content
      Tester Connection H55-12 (V+) - H55-23 (CGND)
      Tool Setting 200 mV/DIV., 50 μs/DIV.
      Condition

      • Waveform 1: Ignition switch ON, camera lens not covered, displaying an image

      • Waveform 2: Ignition switch ON, camera lens covered, blacking out screen
      OK
      Waveform is as shown in illustration.

      Tech Tips

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

      Result
      Result Proceed to
      OK A
      NG (w/ Tire Carrier) B
      NG (w/o Tire Carrier) C

    B

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    A

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