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Home >> Toyota >> 2023 >> RAV4 Adventure >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Audio / Video System - Diagnostic Codes (2 Of 2), Circuit Tests & Symptom Tests (1 Of 2) >> Audio And Visual System >> DTC C1622: Back Camera Disconnected [11/2018 - 10/2022] >> Procedure

DTC C1622: Back Camera Disconnected [11/2018 - 10/2022]: Procedure

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

      Result

      Result Proceed to
      w/ Parking Assist Monitor System or w/ Rear View Monitor System: A
      w/ Panoramic View Monitor System B

    Result: 

    See step  8

    Result: 

    See step  2

  2. CHECK FOR DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - 10/2022]

      Body Electrical > Navigation System > Clear DTCs 

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - 10/2022]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

    Result: 

    NG 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) 
    1. Disconnect the G2 radio and display receiver assembly connector.
    2. Disconnect the R15*1 or R16*2 rear television camera assembly connector.
      1. *1: w/ Parking Assist Monitor System
      2. *2: w/ Rear View Monitor System
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      W/ PARKING ASSIST MONITOR SYSTEM:

      Tester Connection Condition Specified Condition
      R15-6 (CB+) - G2-30 (CA+) Always Below 1 Ω
      R15-3 (CV+) - G2-28 (V+) Always Below 1 Ω
      R15-2 (CV-) - G2-29 (V-) Always Below 1 Ω
      R15-5 (CGND) - P42-27 (CGND) Always Below 1 Ω
      R15-6 (CB+) - Body ground Always 10 kΩ or higher
      R15-3 (CV+) - Body ground Always 10 kΩ or higher
      R15-2 (CV-) - Body ground Always 10 kΩ or higher
      R15-5 (CGND) - Body ground Always 10 kΩ or higher
      W/ REAR VIEW MONITOR SYSTEM:

      Tester Connection Condition Specified Condition
      R16-6 (CB+) - G2-30 (CA+) Always Below 1 Ω
      R16-3 (CV+) - G2-28 (V+) Always Below 1 Ω
      R16-2 (CV-) - G2-29 (V-) Always Below 1 Ω
      R16-5 (CGND) - P42-27 (CGND) Always Below 1 Ω
      R16-6 (CB+) - Body ground Always 10 kΩ or higher
      R16-3 (CV+) - Body ground Always 10 kΩ or higher
      R16-2 (CV-) - Body ground Always 10 kΩ or higher
      R16-5 (CGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G2-27 (CGND) - Body ground Always Below 1 Ω
      GTY866672Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      G2-30 (CA+) - Body ground Ignition switch ON 5.5 to 7.05 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2018 - 10/2022] 

    Result: 

    OK 

    See step  5

  5. CHECK REAR TELEVISION CAMERA ASSEMBLY 
    1. Check the waveform of the rear television camera assembly using an oscilloscope.
      GTY931467Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)
      *b Waveform 1
      *c Waveform 2 *d Synchronized Signal
      *e Video Waveform - -

      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 as shown in the illustration.

      Item Content
      Terminal No. (Symbol) G2-28 (V+) - G2-29 (V-)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Waveform 1: Ignition switch ON, camera lens is not covered, displaying an image
      Waveform 2: Ignition switch ON, camera lens is covered, blacking out the screen

      HINT: 

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

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

    Result: 

    NG 

    See step  6

  6. REPLACE REAR TELEVISION CAMERA ASSEMBLY 
    1. Replace the rear television camera assembly with a new or normally functioning one.

      Refer to REMOVAL [11/2018 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. CHECK FOR DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - 10/2022]

      Body Electrical > Navigation System > Clear DTCs 

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - 10/2022]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (REAR TELEVISION CAMERA ASSEMBLY WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2018 - 10/2022] 

  8. CHECK DTC (PANORAMIC VIEW MONITOR SYSTEM) 
    1. Clear the DTCs.

      for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

      for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

      Chassis > Circumference Monitoring Camera Control Module > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

      for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

      Chassis > Circumference Monitoring Camera Control Module > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO PANORAMIC VIEW MONITOR SYSTEM 

    for HV model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

    for Gasoline model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the N24 parking assist ECU connector.
    2. Disconnect the G2 radio and display receiver assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N24-7 (NS+) - G2-28 (V+) Always Below 1 Ω
      N24-24 (NS-) - G2-29 (V-) Always Below 1 Ω
      N24-7 (NS+) - Body ground Always 10 kΩ or higher
      N24-24 (NS-) - Body ground Always 10 kΩ or higher
      N24-8 (NSG) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  10

  10. CHECK PARKING ASSIST ECU 
    GTY931468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component with harness connected
    (Radio and Display Receiver Assembly)
    *b Waveform 1
    *c Waveform 2 *d Synchronized Signal
    *e Video Waveform - -
    1. Remove the radio and display receiver assembly with the connector still connected.

      Refer to REMOVAL [11/2018 - 10/2022]

    2. Check the waveform of the parking assist ECU using an oscilloscope.
      Item Content
      Measurement terminal G2-28 (V+) - G2-29 (V-)
      Measurement setting 200 mV/DIV., 50 μsec./DIV.
      Condition Waveform 1: Ignition switch ON, shift position in R, camera lens is not covered, displaying an image.
      Waveform 2: Ignition switch ON, shift position in R, camera lens is covered, blacking out the screen.

      HINT: 

      • The video waveform changes according to the image sent by the parking assist ECU.
      • The video waveform is constantly output when the ignition switch is ACC.

      OK

      Waveform is similar to that shown in the illustration.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2018 - 10/2022] 

    Result: 

    NG 

    GO TO PANORAMIC VIEW MONITOR SYSTEM 

    for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]

    for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2022]