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PARKING ASSIST MONITOR SYSTEM(w/o Parallel Parking Assist Function), Diagnostic DTC:C1621

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DTC Code DTC Name
C1621 Back Camera Power Supply Failure
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DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
C1621 Rear television camera assembly power supply failure

  • Harness or connector

  • Rear television camera assembly

  • Radio receiver assembly
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • If the cable was disconnected from and reconnected to the negative (-) auxiliary 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).

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PROCEDURE


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


    1. Disconnect the H177 radio receiver assembly connector.

    2. Disconnect the U22 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
      H177-11 (CA+) - U22-6 (CB+) Always Below 1 Ω
      H177-23 (CGND) - U22-5 (CGND) Always Below 1 Ω
      H177-11 (CA+) - H177-23 (CGND) Always 10 kΩ or higher
      H177-11 (CA+) - Body ground Always 10 kΩ or higher
      H177-23 (CGND) - Body ground Always 10 kΩ or higher

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

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    INSPECT RADIO RECEIVER ASSEMBLY (CA+)


    1. Reconnect the H177 radio receiver assembly connector.

    2. A0004VDE02

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H177-11 (CA+) - Body ground Power switch on (ACC) 5.5 to 7.05 V
      Table 1. Text in Illustration
      *a

      Component with harness connected

      (Radio Receiver Assembly)

    • OK

      REPLACE REAR TELEVISION CAMERA ASSEMBLY (Click here)

    • NG

      REPLACE RADIO RECEIVER ASSEMBLY (Click here)