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DTC C1622-87: Rear Camera Image Signal Missing Message [12/2022 - ]: Procedure

  1. CHECK MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Back Guide Monitor System A
      w/ Rear View Monitor System B

    Result: 

    B 

    See step  5

    Result: 

    A 

    See step  2

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

    Pre-procedure1

    • Disconnect the K126 radio and display receiver assembly connector.
    • Disconnect the V2*1 or V3*2 rear television camera assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K126-2 (CB+) - V2*1 or V3*2-4 (CB+) Always Below 1 Ω Ω
      K126-3 (CV+) - V2*1 or V3*2-6 (CV+) Always Below 1 Ω Ω
      K126-4 (CV-) - V2*1 or V3*2-5 (CV-) Always Below 1 Ω Ω
      K126-1 (CGND) - V2*1 or V3*2-3 (CGND) Always Below 1 Ω Ω
      K126-5 (SGND) - Body ground Always Below 1 Ω Ω
      K126-2 (CB+) or V2*1 or V3*2-4 (CB+) - Body ground Always 10 kΩ or higher kΩ
      K126-3 (CV+) or V2*1 or V3*2-6 (CV+) - Body ground Always 10 kΩ or higher kΩ
      K126-4 (CV-) or V2*1 or V3*2-5 (CV-) - Body ground Always 10 kΩ or higher kΩ
      K126-1 (CGND) or V2*1 or V3*2-3 (CGND) - Body ground Always 10 kΩ or higher kΩ
      1. *1: w/o Parking Support Brake System
      2. *2: w/ Parking Support Brake System

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Pre-procedure1

    • Reconnect the K126 radio and display receiver assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K126-4 (CV-) - Body ground Always Below 1 Ω Ω
      K126-1 (CGND) - Body ground Always Below 1 Ω Ω
      GTY1147001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *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 Result
      K126-2 (CB+) - K126-1 (CGND) Power switch on (ACC) 5.5 to 7.05 V V

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2022 - ] 

    Result: 

    OK 

    See step  4

  4. INSPECT REAR TELEVISION CAMERA ASSEMBLY 
    1. Reconnect the V2*1 or V3*2 rear television camera assembly connector.
      1. *1: w/o Parking Support Brake System
      2. *2: w/ Parking Support Brake System
    2. Using an oscilloscope, check the waveform of the rear television camera assembly.

      HINT: 

      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 K126-3 (CV+) - K126-4 (CV-)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Power switch on (IG), shift lever in R

      HINT: 

      • The video waveform changes according to the image sent by the rear television camera assembly.
      • The video waveform is constantly output when the power switch is turned on (ACC).
      GTY1141308Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)
      GTY377768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *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

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2022 - ] 

    Result: 

    NG 

    REPLACE REAR TELEVISION CAMERA ASSEMBLY 

    for Wagon: Refer to REMOVAL [12/2022 - ]

    for Hatchback: Refer to REMOVAL [12/2022 - ]

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

    Pre-procedure1

    • Disconnect the K81 radio and display receiver assembly connector.
    • Disconnect the O115 rear television camera assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K81-30 (CA+) - O115-6 (CB+) Always Below 1 Ω Ω
      K81-28 (V+) - O115-3 (CV+) Always Below 1 Ω Ω
      K81-29 (V-) - O115-2 (CV-) Always Below 1 Ω Ω
      K81-27 (CGND) - O115-5 (CGND) Always Below 1 Ω Ω
      K81-30 (CA+) or O115-6 (CB+) - Body ground Always 10 kΩ or higher kΩ
      K81-28 (V+) or O115-3 (CV+) - Body ground Always 10 kΩ or higher kΩ
      K81-29 (V-) or O115-2 (CV-) - Body ground Always 10 kΩ or higher kΩ
      K81-27 (CGND) or O115-5 (CGND) - Body ground Always 10 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Pre-procedure1

    • Reconnect the K81 radio and display receiver assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K81-29 (V-) - Body ground Always Below 1 Ω Ω
      K81-27 (CGND) - Body ground Always Below 1 Ω Ω
      GTY1147004Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *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 Result
      K81-30 (CA+) - K81-27 (CGND) Power switch on (ACC) 5.5 to 7.05 V V

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2022 - ] 

    Result: 

    OK 

    See step  7

  7. INSPECT REAR TELEVISION CAMERA ASSEMBLY 
    1. Reconnect the W12 rear television camera assembly connector.
    2. Using an oscilloscope, check the waveform of the rear television camera assembly.

      HINT: 

      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 K81-28 (V+) - K81-29 (V-)
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Power switch on (IG), shift lever in R

      HINT: 

      • The video waveform changes according to the image sent by the rear television camera assembly.
      • The video waveform is constantly output when the power switch is turned on (ACC).
      GTY1147002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)
      GTY377768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *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

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2022 - ] 

    Result: 

    NG 

    REPLACE REAR TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [12/2022 - ] 

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