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*1 or radio and display receiver assembly*2, and the rear television camera assembly are not normal as a result of its self check.

DTC No. DTC Detection Condition Trouble Area
C1622 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

*1: for Navigation System (for Navigation Receiver Type)

*2: for Audio and Visual System (for Radio and Display Type)

WIRING DIAGRAM

B000JB5E01

INSPECTION PROCEDURE

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Navigation System (for Navigation Receiver Type) A
      for Audio and Visual System (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 I184 navigation receiver assembly connector.

    2. Disconnect the T6 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
      I184-11 (CA+) - T6-6 (CB+) Always Below 1 Ω
      I184-12 (V+) - T6-3 (CV+) Always Below 1 Ω
      I184-24 (V-) - T6-2 (CV-) Always Below 1 Ω
      I184-23 (CGND) - T6-5 (CGND) Always Below 1 Ω
      I184-11 (CA+) - Body ground Always 10 kΩ or higher
      I184-12 (V+) - Body ground Always 10 kΩ or higher
      I184-24 (V-) - Body ground Always 10 kΩ or higher
      I184-23 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. Reconnect the I184 navigation receiver assembly connector.

    2. B000I8HE12
      Text in Illustration
      *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
      I184-23 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I184-11 (CA+) - I184-23 (CGND) Ignition switch ACC 5.5 to 7.05 V
      Result
      Result Proceed to
      OK A
      NG (for TMC, TMMR Made) B
      NG (for TMMK Made) C

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY (for TMC, TMMR Made) Click here

    C

    REPLACE NAVIGATION RECEIVER ASSEMBLY (for TMMK Made) Click here

    A

  4. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the T6 rear television camera assembly connector.

    2. B000HDCE11
      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)
      B000ITOE35
      Text in Illustration
      *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 I184-12 (V+) - I64-7 (GND1)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Ignition switch ON, 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 ignition switch is turned to ACC.

      Result
      Result Proceed to
      OK (for TMC, TMMR Made) A
      OK (for TMMK Made) B
      NG (for TMC, TMMR Made) C
      NG (for TMMK Made) D

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY (for TMMK Made) Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMC, TMMR Made) Click here

    D

    REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMMK Made) Click here

    A

    REPLACE NAVIGATION RECEIVER ASSEMBLY (for TMC, TMMR Made) Click here

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


    1. Disconnect the I185 radio and display receiver assembly connector.

    2. Disconnect the T6 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
      I185-11 (CA+) - T6-6 (CB+) Always Below 1 Ω
      I185-12 (V+) - T6-3 (CV+) Always Below 1 Ω
      I185-24 (V-) - T6-2 (CV-) Always Below 1 Ω
      I185-23 (CGND) - T6-5 (CGND) Always Below 1 Ω
      I185-11 (CA+) - Body ground Always 10 kΩ or higher
      I185-12 (V+) - Body ground Always 10 kΩ or higher
      I185-24 (V-) - Body ground Always 10 kΩ or higher
      I185-23 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Reconnect the I185 radio and display receiver assembly connector.

    2. B000I8HE13
      Text in Illustration
      *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
      I185-23 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I185-11 (CA+) - I185-23 (CGND) Ignition switch ACC 5.5 to 7.05 V
      Result
      Result Proceed to
      OK A
      NG (for TMC, TMMR Made) B
      NG (for TMMK Made) C

    B

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMC, TMMR Made) Click here

    C

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMMK Made) Click here

    A

  7. INSPECT REAR TELEVISION CAMERA ASSEMBLY


    1. Reconnect the T6 rear television camera assembly connector.

    2. B000HDCE12
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)
      B000ITOE35
      Text in Illustration
      *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 radio and display receiver assembly with the connector connected.

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal I185-12 (V+) - I152-7 (GND1)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Ignition switch ON, 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 ignition switch is turned to ACC.

      Result
      Result Proceed to
      OK (for TMC, TMMR Made) A
      OK (for TMMK Made) B
      NG (for TMC, TMMR Made) C
      NG (for TMMK Made) D

    B

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMMK Made) Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMC, TMMR Made) Click here

    D

    REPLACE REAR TELEVISION CAMERA ASSEMBLY (for TMMK Made) Click here

    A

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMC, TMMR Made) Click here