PARKING ASSIST MONITOR SYSTEM(w/o Parallel Parking Assist Function), Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Back Camera Disconnected

DESCRIPTION

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

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

  • Harness or connector

  • Rear television camera assembly

  • Multi-display assembly

  • Radio receiver assembly

  • Luggage electrical key switch

WIRING DIAGRAM

B0075H9E04

CAUTION / NOTICE / HINT

Note


  • 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

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

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - LUGGAGE ELECTRICAL KEY SWITCH)


    1. Disconnect the O60 multi-display Assembly connector.

    2. Disconnect the U40 luggage electrical key switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O60-10 (CA+) - U40-6 (CB+) Always Below 1 Ω
      O60-8 (V+) - U40-7 (CV+) Always Below 1 Ω
      O60-9 (V-) - U40-2 (CV-) Always Below 1 Ω
      O60-21 (CGND) - U40-1 (CGND) Always Below 1 Ω
      O60-13 (GND1) - Body ground Always Below 1 Ω
      O60-10 (CA+) or U40-6 (CB+) - Body ground Always 10 kΩ or higher
      O60-8 (V+) or U40-7 (CV+) - Body ground Always 10 kΩ or higher
      O60-9 (V-) or U40-2 (CV-) - Body ground Always 10 kΩ or higher
      O60-21 (CGND) or U40-1 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT LUGGAGE ELECTRICAL KEY SWITCH


    1. Disconnect the z22 luggage electrical key switch connector.

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

      B0073NNC17
      *a

      Component without harness connected

      (Luggage Electrical Key Switch)

      		 - -

      Tech Tips

      Perform this inspection with the luggage electrical key switch installed to the vehicle.

      Standard Resistance
      Tester Connection Condition Specified Condition
      U40-6 (CB+) - z22-6 (CB+) Always Below 1 Ω
      U40-7 (CV+) - z22-3 (CV+) Always Below 1 Ω
      U40-2 (CV-) - z22-2 (CV-) Always Below 1 Ω
      U40-1 (CGND) - z22-5 (CGND) Always Below 1 Ω
      U40-6 (CB+) or z22-6 (CB+) - Body ground Always 10 kΩ or higher
      U40-7 (CV+) or z22-3 (CV+) - Body ground Always 10 kΩ or higher
      U40-2 (CV-) or z22-2 (CV-) - Body ground Always 10 kΩ or higher
      U40-1 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE LUGGAGE ELECTRICAL KEY SWITCH Click here

    OK

  3. INSPECT MULTI-DISPLAY ASSEMBLY (CA+, CGND)


    1. Reconnect the O60 multi-display assembly connector.

    2. B00743DC05
      *a

      Component with harness connected

      (Multi-display Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O60-21 (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
      O60-10 (CA+) - O60-21 (CGND) Engine switch on (ACC) 5.8 to 6.5 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE MULTI-DISPLAY ASSEMBLY Click here

    OK

  4. INSPECT MULTI-DISPLAY ASSEMBLY (V+, GND1)


    1. Reconnect the U40 luggage electrical key switch connector.

    2. Reconnect the z22 rear television camera assembly connector.

    3. B00743DC02
      *a

      Component with harness connected

      (Multi-display Assembly)
      B0073H3C05
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

      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 multi-display assembly with the connector connected.

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal O60-8 (V+) - O60-13 (GND1)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Engine switch on (IG), shift lever in R

      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).

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    OK

  5. REPLACE MULTI-DISPLAY ASSEMBLY


    1. Replace the multi-display assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK DTC OUTPUT


    1. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      Result
      Result Proceed to
      DTC C1622 is output A
      DTC C1622 is not output B

    A

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    B

    END (MULTI-DISPLAY ASSEMBLY WAS DEFECTIVE)