PARKING ASSIST MONITOR SYSTEM(for Camera built-in ECU), Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Back Camera Disconnected

DESCRIPTION

This DTC is stored if the navigation receiver assembly*1 or radio and display receiver assembly*2 judges that the signals or signal lines between the rear television camera assembly, and the navigation receiver assembly*1 or radio and display receiver assembly*2 are not normal as a result of its self check.

DTC Code DTC Detection Condition Trouble Area
C1622 Open or short in the rear television camera assembly signal circuit

  • Harness or connector

  • Rear television camera assembly

  • Navigation receiver assembly*1

  • Radio and display receiver assembly*2

  • Rear television camera assembly

WIRING DIAGRAM

B001DYOE03
B001DYOE04

CAUTION / NOTICE / HINT

Note


  • If the cable was disconnected from and reconnected to the negative (-) battery terminal, the estimated course lines may not be displayed on the image of the area behind the vehicle. In this case, perform "Correct the Steering Angle Neutral Point" Click here.

  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed Click here.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      No DTC is output A
      DTC is output (for Navigation Receiver Type) B
      DTC is output (for Radio and Display Type) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    C

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

    B

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


    1. Disconnect the v3*1 or X10*2 rear television camera assembly connector.


      • *1: w/ Tire Carrier

      • *2: w/o Tire Carrier

    2. Disconnect the H55 navigation receiver assembly connector.

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

      Standard Resistance
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      v3-6 (CB+) - H55-11 (CA+) Always Below 1 Ω
      v3-3 (CV+) - H55-12 (V+) Always Below 1 Ω
      v3-2 (CV-) - H55-24 (V-) Always Below 1 Ω
      v3-5 (CGND) - H55-23 (CGND) Always Below 1 Ω
      v3-6 (CB+) or H55-11 (CA+) - Body ground Always 10 kΩ or higher
      v3-3 (CV+) or H55-12 (V+) - Body ground Always 10 kΩ or higher
      v3-2 (CV-) or H55-24 (V-) - Body ground Always 10 kΩ or higher
      v3-5 (CGND) or H55-23 (CGND) - Body ground Always Below 1 Ω
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      X10-6 (CB+) - H55-11 (CA+) Always Below 1 Ω
      X10-3 (CV+) - H55-12 (V+) Always Below 1 Ω
      X10-2 (CV-) - H55-24 (V-) Always Below 1 Ω
      X10-5 (CGND) - H55-23 (CGND) Always Below 1 Ω
      X10-6 (CB+) or H55-11 (CA+) - Body ground Always 10 kΩ or higher
      X10-3 (CV+) or H55-12 (V+) - Body ground Always 10 kΩ or higher
      X10-2 (CV-) or H55-24 (V-) - Body ground Always 10 kΩ or higher
      X10-5 (CGND) or H55-23 (CGND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK NAVIGATION RECEIVER ASSEMBLY (CA+, CGND)


    1. B001GO2E02
      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

      Remove the navigation receiver assembly with the connector still connected Click here.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      H55-11 (CA+) - H55-23 (CGND) Engine switch on (ACC) 5.5 to 7.05 V

    3. 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

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. CHECK REAR TELEVISION CAMERA ASSEMBLY

    B001FD4E02
    Text in Illustration
    *a

    Component with harness connected

    (Navigation Receiver Assembly)

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

    1. Remove the navigation receiver assembly with the connector still connected Click here.

    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 navigation receiver assembly with the connector connected.

      Measurement Condition
      Item Content
      Measurement terminal H55-12 (V+) - H55-24 (V-)
      Measurement setting 200 mV/DIV., 50 μsec./DIV.
      Condition

      Waveform 1: Engine starts, shift lever in R, camera lens is not covered, displaying an image.

      Waveform 2: Engine starts, shift lever in R, camera lens is covered, blacking out the screen.

      Tech Tips


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

      • The video waveform is constantly output when the engine switch is on (ACC).

      OK
      Waveform is as shown in the illustration.
      Result
      Result Proceed to
      OK A
      NG (w/ Tire Carrier) B
      NG (w/o Tire Carrier) C

    A

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    B

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

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


    1. Disconnect the v3*1 or X10*2 rear television camera assembly connector.


      • *1: w/ Tire Carrier

      • *2: w/o Tire Carrier

    2. Disconnect the H50 radio and display receiver assembly connector.

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

      Standard Resistance
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      v3-6 (CB+) - H50-11 (CA+) Always Below 1 Ω
      v3-3 (CV+) - H50-12 (V+) Always Below 1 Ω
      v3-2 (CV-) - H50-24 (V-) Always Below 1 Ω
      v3-5 (CGND) - H50-23 (CGND) Always Below 1 Ω
      v3-6 (CB+) or H50-11 (CA+) - Body ground Always 10 kΩ or higher
      v3-3 (CV+) or H50-12 (V+) - Body ground Always 10 kΩ or higher
      v3-2 (CV-) or H50-24 (V-) - Body ground Always 10 kΩ or higher
      v3-5 (CGND) or H50-23 (CGND) - Body ground Always Below 1 Ω
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      X10-6 (CB+) - H50-11 (CA+) Always Below 1 Ω
      X10-3 (CV+) - H50-12 (V+) Always Below 1 Ω
      X10-2 (CV-) - H50-24 (V-) Always Below 1 Ω
      X10-5 (CGND) - H50-23 (CGND) Always Below 1 Ω
      X10-6 (CB+) or H50-11 (CA+) - Body ground Always 10 kΩ or higher
      X10-3 (CV+) or H50-12 (V+) - Body ground Always 10 kΩ or higher
      X10-2 (CV-) or H50-24 (V-) - Body ground Always 10 kΩ or higher
      X10-5 (CGND) or H50-23 (CGND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (CA+, CGND)


    1. B001GO2E03
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      Remove the radio and display receiver assembly with the connector still connected Click here.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      H50-11 (CA+) - H50-23 (CGND) Engine switch on (ACC) 5.5 to 7.05 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H50-23 (CGND) - Body ground Always Below 1 Ω

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  7. CHECK REAR TELEVISION CAMERA ASSEMBLY

    B001E8AE02
    Text in Illustration
    *a

    Component with harness connected

    (Radio and Display Receiver Assembly)

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

    1. Remove the radio and display receiver assembly with the connector still connected Click here.

    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 receiver assembly with the connector connected.

      Measurement Condition
      Item Content
      Measurement terminal H50-12 (V+) - H50-24 (V-)
      Measurement setting 200 mV/DIV., 50 μsec./DIV.
      Condition

      Waveform 1: Engine starts, shift lever in R, camera lens is not covered, displaying an image.

      Waveform 2: Engine starts, shift lever in R, camera lens is covered, blacking out the screen.

      Tech Tips


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

      • The video waveform is constantly output when the engine switch is on (ACC).

      OK
      Waveform is as shown in the illustration.
      Result
      Result Proceed to
      OK A
      NG (w/ Tire Carrier) B
      NG (w/o Tire Carrier) C

    A

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    B

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here