REAR VIEW MONITOR SYSTEM, Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Back Camera Disconnected

DESCRIPTION

This DTC is stored if the navigation receiver assembly*1 or radio and display receiver assembly*2 judges that the signals or signal lines between the navigation 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

  • Navigation receiver assembly*1

  • Radio and display receiver assembly*2

WIRING DIAGRAM


  1. for Navigation Receiver Type

    B006Q4FE04

  2. for Radio and Display Type

    B006Q4FE05

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Navigation Receiver Type A
      for Radio and Display Type B

    B

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) Click here

    A

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


    1. Disconnect the F4 navigation receiver assembly connector.

    2. Disconnect the m2 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
      F4-11 (CA+) - m2-6 (CB+) Always Below 1 Ω
      F4-12 (V+) - m2-3 (CV+) Always Below 1 Ω
      F4-24 (V-) - m2-2 (CV-) Always Below 1 Ω
      F4-23 (CGND) - m2-5 (CGND) Always Below 1 Ω
      F4-11 (CA+) or m2-6 (CB+) - Body ground Always 10 kΩ or higher
      F4-12 (V+) or m2-3 (CV+) - Body ground Always 10 kΩ or higher
      F4-24 (V-) or m2-2 (CV-) - Body ground Always 10 kΩ or higher
      F4-23 (CGND) or m2-5 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. Reconnect the navigation receiver assembly connector.

    2. B006O1LC01
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F4-24 (V-) - Body ground Always Below 1 Ω
      F4-23 (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
      F4-11 (CA+) - F4-23 (CGND) Engine switch on (ACC) 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the m2 rear television camera assembly connector.

    2. B006O1LC03
      *a

      Component with harness connected

      (Navigation Receiver Assembly)
      B006LQ9C09
      *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

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

      Tech Tips

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

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal F4-12 (V+) - F4-24 (V-)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Engine switch on (IG), shift lever in R

      Tech Tips


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

      • The video waveform is constantly output when the engine switch is on (ACC).

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

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


    1. Disconnect the F40 radio and display receiver assembly connector.

    2. Disconnect the m2 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
      F40-11 (CA+) - m2-6 (CB+) Always Below 1 Ω
      F40-12 (V+) - m2-3 (CV+) Always Below 1 Ω
      F40-24 (V-) - m2-2 (CV-) Always Below 1 Ω
      F40-23 (CGND) - m2-5 (CGND) Always Below 1 Ω
      F40-11 (CA+) or m2-6 (CB+) - Body ground Always 10 kΩ or higher
      F40-12 (V+) or m2-3 (CV+) - Body ground Always 10 kΩ or higher
      F40-24 (V-) or m2-2 (CV-) - Body ground Always 10 kΩ or higher
      F40-23 (CGND) or m2-5 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Reconnect the radio and display receiver assembly connector.

    2. B006O1LC04
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F40-24 (V-) - Body ground Always Below 1 Ω
      F40-23 (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
      F40-11 (CA+) - F40-23 (CGND) Engine switch on (ACC) 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  7. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the m2 rear television camera assembly connector.

    2. B006O1LC05
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)
      B006LQ9C09
      *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

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

      Tech Tips

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

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal F40-12 (V+) - F40-24 (V-)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Engine switch on (IG), shift lever in R

      Tech Tips


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

      • The video waveform is constantly output when the engine switch on (ACC).

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here