REAR VIEW MONITOR SYSTEM, Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Back Camera Disconnected

DESCRIPTION

This DTC is stored if the radio and display receiver assembly judges that the signals or signal lines between the radio and display 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

Back Camera Disconnected

Open or short in the rear television camera assembly signal circuit

  • Harness or connector

  • Rear television camera assembly

  • Radio and display receiver assembly

WIRING DIAGRAM

E267063E16

PROCEDURE

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

    1. Disconnect the E33 radio and display receiver assembly connector.

    2. Disconnect the K9 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

      E33-1 (CA+) - K9-6 (CB+)

      Always

      Below 1 Ω

      E33-2 (V+) - K9-3 (CV+)

      Always

      Below 1 Ω

      E33-6 (V-) - K9-2 (CV-)

      Always

      Below 1 Ω

      E33-5 (CGND) - K9-5 (CGND)

      Always

      Below 1 Ω

      E33-1 (CA+) - Body ground

      Always

      10 kΩ or higher

      E33-2 (V+) - Body ground

      Always

      10 kΩ or higher

      E33-6 (V-) - Body ground

      Always

      10 kΩ or higher

      E33-5 (CGND) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. Reconnect the E33 radio and display receiver assembly connector.

    2. E292762C01

      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      E33-1 (CA+) - E33-5 (CGND)

      Ignition switch ACC

      5.5 to 7.05 V

      E33-6 (V-) - Body ground

      Always

      Below 1 V

      E33-5 (CGND) - Body ground

      Always

      Below 1 V

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    OK

  3. INSPECT REAR TELEVISION CAMERA ASSEMBLY

    1. Reconnect the K9 rear television camera assembly connector.

    2. E265840C01

      *a

      Waveform 1 (camera lens is not covered, displaying an image)

      *b

      Waveform 2 (camera lens is covered, blacking out the screen)

      *c

      Synchronization Signal

      *d

      Video Waveform
      E292761C02

      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      Using an oscilloscope, check the waveform of the rear television camera assembly.

      Tip:

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

      OK

      Waveform is similar to that shown in the illustration.

      Item

      Content

      Measurement terminal

      E33-2 (V+) - E31-7 (GND1)

      Measurement setting

      200 mV/DIV., 50 μs./DIV.

      Condition

      Ignition switch ON, shift lever in R
      Tip:

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

      • The video waveform is constantly output when the ignition switch is turned to ACC.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY

    Click here