PARKING ASSIST MONITOR SYSTEM(for Camera built-in ECU) Image from Camera for Parking Assist Monitor is Abnormal

DESCRIPTION

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


WIRING DIAGRAM

A01QSBHE01
A01QSBHE02

PROCEDURE


  1. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Proceed to
      for Navigation Receiver Type
      for Radio and Display Type

    for Radio and Display Type

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEVISION CAMERA ASSEMBLY) Click here

    for Navigation Receiver Type

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


    1. Disconnect the G158 navigation 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
      G158-11 (CA+) - U6-6 (CB+) Always Below 1 Ω
      G158-12 (V+) - U6-3 (CV+) Always Below 1 Ω
      G158-24 (V-) - U6-2 (CV-) Always Below 1 Ω
      G158-23 (CGND) - U6-5 (CGND) Always Below 1 Ω
      G158-11 (CA+) - Body ground Always 10 kΩ or higher
      G158-12 (V+) - Body ground Always 10 kΩ or higher
      G158-24 (V-) - Body ground Always 10 kΩ or higher
      G158-23 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK NAVIGATION RECEIVER ASSEMBLY


    1. A01QQ9HC11
      *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
      G158-23 (CGND) - Body ground Always Below 1 Ω
      G158-24 (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
      G158-11 (CA+) - Body ground Ignition switch ON 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. CHECK TELEVISION CAMERA ASSEMBLY


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

      A01QTAXC07
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronized Signal
      *e Video Waveform - -

      Tech Tips

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

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) G158-12 (V+) - G158-23 (CGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition

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

      Waveform 2: Ignition switch ON, camera lens is covered, blacking out the screen

      Tech Tips

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

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    NG

    REPLACE TELEVISION CAMERA ASSEMBLY Click here

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


    1. Disconnect the G159 radio and display receiver assembly connector.

    2. Disconnect the U22 television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G159-11 (CA+) - U22-6 (CB+) Always Below 1 Ω
      G159-12 (V+) - U22-3 (CV+) Always Below 1 Ω
      G159-24 (V-) - U22-2 (CV-) Always Below 1 Ω
      G159-23 (CGND) - U22-5 (CGND) Always Below 1 Ω
      G159-11 (CA+) - Body ground Always 10 kΩ or higher
      G159-12 (V+) - Body ground Always 10 kΩ or higher
      G159-24 (V-) - Body ground Always 10 kΩ or higher
      G159-23 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A01QQ9HC09
      *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
      G159-23 (CGND) - Body ground Always Below 1 Ω
      G159-24 (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
      G159-11 (CA+) - Body ground Ignition switch ON 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  7. CHECK TELEVISION CAMERA ASSEMBLY


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

      A01QTAXC06
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronized Signal
      *e Video Waveform - -

      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) G159-12 (V+) - G159-23 (CGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition

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

      Waveform 2: Ignition switch ON, camera lens is covered, blacking out the screen

      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