PARKING ASSIST MONITOR SYSTEM, Diagnostic DTC:C1622

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

DESCRIPTION

This DTC is 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
C1622 Open or short in the television camera signal circuit

  • Harness or connector

  • Luggage electrical key switch

  • Television camera assembly

  • Multi-media module receiver assembly

WIRING DIAGRAM

A001BVNE02

CAUTION / NOTICE / HINT

Note


  • When "System initializing" is displayed on the accessory meter assembly after disconnecting the cable from the negative (-) 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)


    1. Disconnect the L146 multi-media module receiver assembly connector.

    2. Disconnect the S85 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
      L146-19 (V-) - S85-2 (CV-) Always Below 1 Ω
      L146-18 (V+) - S85-7 (CV+) Always Below 1 Ω
      L146-40 (CGND) - S85-1 (CGND) Always Below 1 Ω
      L146-39 (CA+) - S85-6 (CB+) Always Below 1 Ω
      L146-19 (V-) or S85-2 (CV-) - Body ground Always 10 kΩ or higher
      L146-18 (V+) or S85-7 (CV+) - Body ground Always 10 kΩ or higher
      L146-40 (CGND) or S85-1 (CGND) - Body ground Always 10 kΩ or higher
      L146-39 (CA+) or S85-6 (CB+) - 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. A001DG3E01
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      Remove the multi-media module receiver assembly 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
      L146-40 (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
      L146-39 (CA+) - L146-40 (CGND) Engine switch on (ACC) 5.5 to 7.05 V

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  3. CHECK TELEVISION CAMERA ASSEMBLY


    1. Remove the multi-media module receiver assembly with the connector still connected.

      A001F6OE01
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

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

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

      Tech Tips

      A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the multi-media module receiver assembly with the connector connected.

      Item Content
      Terminal No. (Symbol) L146-18 (V+) - L146-40 (CGND)
      Tool 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 television camera assembly.

      OK
      Waveform is as shown in the illustration.

    OK

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    NG

  4. CHECK LUGGAGE ELECTRICAL KEY SWITCH

    A001ESKE01
    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
      S85-1 (CGND) - A-5 (CGND) Always Below 1 Ω
      S85-2 (CV-) - A-2 (CV-) Always Below 1 Ω
      S85-6 (CB+) - A-6 (CB+) Always Below 1 Ω
      S85-7 (CV+) - A-3 (CV+) Always Below 1 Ω
      S85-1 (CGND) - Body ground Always 10 kΩ or higher
      S85-2 (CV-) - Body ground Always 10 kΩ or higher
      S85-6 (CB+) - Body ground Always 10 kΩ or higher
      S85-7 (CV+) - Body ground Always 10 kΩ or higher

    OK

    REPLACE TELEVISION CAMERA ASSEMBLY Click here

    NG

    REPLACE LUGGAGE ELECTRICAL KEY SWITCH Click here