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

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 assembly signal circuit

  • Rear television camera assembly

  • Radio receiver assembly

  • Harness or connector

WIRING DIAGRAM

B002KY7E02

CAUTION / NOTICE / HINT

Note


  • When "System initializing" is displayed on the radio receiver 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 FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Check for DTCs.

      Click here


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

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

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


    1. Disconnect the I38 radio receiver assembly connector.

    2. Disconnect the Y6 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
      I38-39 (CA+) - Y6-6 (CB+) Always Below 1 Ω
      I38-18 (V+) - Y6-3 (CV+) Always Below 1 Ω
      I38-19 (V-) - Y6-2 (CV-) Always Below 1 Ω
      I38-40 (CGND) - Y6-5 (CGND) Always Below 1 Ω
      I38-39 (CA+) or Y6-6 (CB+) - Body ground Always 10 kΩ or higher
      I38-18 (V+) or Y6-3 (CV+) - Body ground Always 10 kΩ or higher
      I38-19 (V-) or Y6-2 (CV-) - Body ground Always 10 kΩ or higher
      I38-40 (CGND) or Y6-5 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK RADIO RECEIVER ASSEMBLY (CGND, CA+)


    1. B002JB3C31
      *a

      Component with harness connected

      (Radio Receiver Assembly)

      Remove the radio 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
      I38-40 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I38-39 (CA+) - I38-40 (CGND) Power switch on (ACC) 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  4. CHECK REAR TELEVISION CAMERA ASSEMBLY


    1. Remove the radio receiver assembly with the connector still connected.

      B002JGQC10
      *a

      Component with harness connected

      (Radio Receiver Assembly)

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

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

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio receiver assembly with the connector connected.

      Item Content
      Terminal No. (Symbol) I38-18 (V+) - I38-40 (CGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition

      Waveform 1: Power switch on (IG), shift lever in R, camera lens is not covered, displaying an image

      Waveform 2: Power switch on (IG), 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 rear television camera assembly.

      Result
      Result Proceed to
      Waveform is as shown in the illustration A
      Waveform is not as shown in the illustration B

    A

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    B

  5. REPLACE REAR TELEVISION CAMERA ASSEMBLY


    1. Replace the rear television camera assembly with a new or normally functioning one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Check for DTCs.

      Click here


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

    A

    END (REAR TELEVISION CAMERA ASSEMBLY IS DEFECTIVE)

    B

    REPLACE RADIO RECEIVER ASSEMBLY Click here