PANORAMIC VIEW MONITOR SYSTEM, Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Open or Short Circuit in Back Camera Signal

DESCRIPTION

DTC C1622 is stored if the parking assist ECU judges as a result of its self check that the signals or signal lines between the parking assist ECU and the rear television camera assembly are not normal.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1622 Open or Short Circuit in Back Camera Signal Open or short in the rear television camera signal circuit

  • Harness or connector

  • Rear television camera assembly

  • Parking assist ECU

WIRING DIAGRAM

B005L1NE06

CAUTION / NOTICE / HINT

Note


  • When "!" mark is displayed on the multi-display assembly*1 or accessory meter assembly*2 after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.

    Click here


    • *1: for 8 Inch Display

    • *2: for 12.3 Inch Display

  • 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 panoramic view monitor system may be needed.

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the J72 parking assist ECU connector.

    2. Disconnect the Z11 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
      J72-3 (CB+) - Z11-6 (CB+) Always Below 1 Ω
      J72-1 (CV+) - Z11-3 (CV+) Always Below 1 Ω
      J72-2 (CV-) - Z11-2 (CV-) Always Below 1 Ω
      J72-9 (CGND) - Z11-5 (CGND) Always Below 1 Ω
      J72-8 (SGND) - Body ground Always Below 1 Ω
      J72-3 (CB+) or Z11-6 (CB+) - Body ground Always 10 kΩ or higher
      J72-1 (CV+) or Z11-3 (CV+) - Body ground Always 10 kΩ or higher
      J72-2 (CV-) or Z11-2 (CV-) - Body ground Always 10 kΩ or higher
      J72-9 (CGND) or Z11-5 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK PARKING ASSIST ECU (CV-, CGND)


    1. Disconnect the J72 parking assist ECU connector.

    2. B005MH1C22
      *a

      Component without harness connected

      (Parking Assist ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (CV-) - Body ground Always Below 1 Ω
      9 (CGND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU for LHD: Click here
    REPLACE PARKING ASSIST ECU for RHD: Click here

    OK

  3. CHECK PARKING ASSIST ECU (CB+, CGND)


    1. B005MEYC42
      *a

      Component with harness connected

      (Parking Assist ECU)

      Remove the parking assist ECU with the connector still connected.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J72-9 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      J72-3 (CB+) - J72-9 (CGND) Engine switch on (ACC) 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU for LHD: Click here
    REPLACE PARKING ASSIST ECU for RHD: Click here

    OK

  4. CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)


    1. Remove the parking assist ECU with the connector still connected.

    2. 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 parking assist ECU with the connector connected.

      B005OB8C39
      *a

      Component with harness connected

      (Parking Assist ECU)

      		 *b Waveform 1 (camera lens not covered, displaying an image)
      *c Waveform 2 (camera lens covered, blacking out the screen) *d Synchronization Signal
      *e Video Waveform - -

      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).

      Measurement Condition
      Item Content
      Terminal No. (Symbol) J72-1 (CV+) - J72-9 (CGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Engine switch on (IG), panoramic view monitor switch on
      OK
      Waveform is similar to that shown in the illustration.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PARKING ASSIST ECU for LHD: Click here
    REPLACE PARKING ASSIST ECU for RHD: Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here