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

DTC No. Detection Item DTC Detection Condition Trouble Area
C1622 Open or Short Circuit in Back Camera Signal Open or Short Circuit in Rear Television Camera Signal

  • Harness or connector

  • Rear television camera assembly

  • Radio receiver assembly

WIRING DIAGRAM

B00591LE01

CAUTION / NOTICE / HINT

Note

Vehicle Enrolled in Telematics System:

When replacing the radio receiver assembly, perform the vehicle contract setting.

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 I122 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
      I122-11 (CA+) - Y6-6 (CB+) Always Below 1 Ω
      I122-12 (V+) - Y6-3 (CV+) Always Below 1 Ω
      I122-24 (V-) - Y6-2 (CV-) Always Below 1 Ω
      I122-23 (CGND) - Y6-5 (CGND) Always Below 1 Ω
      I122-11 (CA+) or Y6-6 (CB+) - Body ground Always 10 kΩ or higher
      I122-12 (V+) or Y6-3 (CV+) - Body ground Always 10 kΩ or higher
      I122-24 (V-) or Y6-2 (CV-) - Body ground Always 10 kΩ or higher
      I122-23 (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


    1. B005BEVC15
      *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
      I122-23 (CGND) - Body ground Always Below 1 Ω
      I122-24 (V-) - 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
      I122-11 (CA+) - Body ground Engine 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.

      B005AWQC10
      *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.

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) I122-12 (V+) - I122-23 (CGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition

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

      Waveform 2: Engine switch on (IG), shift lever in R, camera lens covered, blacking out screen

      Tech Tips

      The video waveform changes according to the image sent by the rear television camera assembly.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

  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