PARKING ASSIST MONITOR SYSTEM, Diagnostic DTC:C1621, C1622

DTC Code DTC Name
C1621 Back Camera Power Supply Failure
C1622 Open or Short Circuit in Back Camera Signal

DESCRIPTION

These DTCs are stored if the multi-media module receiver assembly judges that the signals or lines between the multi-media module receiver assembly and the television camera assembly are not normal as a result of its self check.

DTC Code DTC Detection Condition Trouble Area
C1621 Television camera power supply failure

  • Harness or connector

  • Television camera assembly

  • Luggage electrical key switch

  • Multi-media module receiver assembly
C1622 Open or short in the television camera signal circuit

WIRING DIAGRAM

A01GYDLE04

INSPECTION PROCEDURE

Note


  • When "System initializing" is displayed on the accessory meter assembly after disconnecting the cable from the negative (-) auxiliary battery terminal, 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 HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - LUGGAGE ELECTRICAL KEY SWITCH AND BODY GROUND)


    1. Disconnect the L164 multi-media module receiver assembly connector.

    2. Disconnect the S101 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
      L164-12 (GND1) - Body ground Always Below 1 Ω
      L164-18 (V+) - S101-7 (CV+) Always Below 1 Ω
      L164-19 (V-) - S101-2 (CV-) Always Below 1 Ω
      L164-39 (CA+) - S101-6 (CB+) Always Below 1 Ω
      L164-40 (CGND) - S101-1 (CGND) Always Below 1 Ω
      L164-18 (V+) - Body ground Always 10 kΩ or higher
      L164-19 (V-) - Body ground Always 10 kΩ or higher
      L164-39 (CA+) - Body ground Always 10 kΩ or higher
      L164-40 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (CA+, CGND)


    1. A01H13JE46
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      Reconnect the multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L164-40 (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
      L164-39 (CA+) - L164-40 (CGND) Power switch on (READY), shift lever in R 5.5 to 7.05 V

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  3. CHECK TELEVISION CAMERA ASSEMBLY (CV+, CGND)


    1. Reconnect the S101 television camera assembly connector.

      A01GX4LE08
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      		 *b Waveform A
      *c Waveform B *d Synchronization Signal
      *e Video Waveform - -

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

      Item Content
      Terminal No. (Symbol) L164-18 (V+) - L164-40 (CGND)
      Tool Setting 0.2 V/DIV., 50 μs/DIV.
      Condition

      Waveform A: Power switch on (READY), shift lever in R (camera lens is not covered, displaying an image)

      Waveform B: Power switch on (READY), 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 television camera assembly.

      OK
      Waveform is as shown in the illustration.

    NG

    CHECK LUGGAGE ELECTRICAL KEY SWITCH (CAMERA CIRCUIT) Click here

    OK

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

  4. CHECK LUGGAGE ELECTRICAL KEY SWITCH (CAMERA CIRCUIT)

    A01GYQ7E08
    Text in Illustration
    *a

    Front view of Luggage Electrical Key Switch

    (Wire Harness Side)

    		 *b

    Front view of Luggage Electrical Key Switch

    (Television Camera Assembly Side)

    1. Disconnect the luggage electrical key switch connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S101-1 (CGND) - A-5 (CGND) Always Below 1 Ω
      S101-1 (CGND) - A-1 (CURT) Always Below 1 Ω
      S101-2 (CV-) - A-2 (CV-) Always Below 1 Ω
      S101-6 (CB+) - A-6 (CB+) Always Below 1 Ω
      S101-7 (CV+) - A-3 (CV+) Always Below 1 Ω
      S101-1 (CGND) - Body ground Always 10 kΩ or higher
      S101-2 (CV-) - Body ground Always 10 kΩ or higher
      S101-6 (CB+) - Body ground Always 10 kΩ or higher
      S101-7 (CV+) - Body ground Always 10 kΩ or higher

    NG

    REPLACE LUGGAGE ELECTRICAL KEY SWITCH Click here

    OK

    REPLACE TELEVISION CAMERA ASSEMBLY Click here