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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Panoramic View Monitor System - Diagnostic Codes & Symptom Tests >> Panoramic View Monitor System >> Image from Camera for Panoramic View Monitor is Abnormal [10/2022 - ] >> Procedure

Image from Camera for Panoramic View Monitor is Abnormal [10/2022 - ]: Procedure

  1. CHECK PANORAMIC VIEW MONITOR SYSTEM 
    1. Check if the same malfunction occurs when the panoramic view monitor screen is displayed.

      Result

      Result Proceed to
      Rear view screen is not displayed. A
      Front view screen is not displayed. B
      Side monitor screen (LH side) is not displayed. C
      Side monitor screen (RH side) is not displayed. D
      Panoramic view monitor screen is not displayed. E
      Multiple camera images are not displayed or are distorted. F

    Result: 

    See step  5

    Result: 

    See step  8

    Result: 

    See step  13

    Result: 

    See step  18

    Result: 

    See step  21

    Result: 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY) 
    1. Disconnect the H125 parking assist ECU connector.
    2. Disconnect the W31 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
      H125-1 (CB+) - W31-2 (CB+) Always Below 1 Ω
      H125-3 (CV+) - W31-4 (CV+) Always Below 1 Ω
      H125-4 (CV-) - W31-3 (CV-) Always Below 1 Ω
      H125-2 (CGND) - W31-1 (CGND) Always Below 1 Ω
      H125-5 (SGND) - W31-5 (SGND) Always Below 1 Ω
      H125-1 (CB+) or W31-2 (CB+) - Body ground Always 10 kΩ or higher
      H125-3 (CV+) or W31-4 (CV+) - Body ground Always 10 kΩ or higher
      H125-4 (CV-) or W31-3 (CV-) - Body ground Always 10 kΩ or higher
      H125-2 (CGND) or W31-1 (CGND) - Body ground Always 10 kΩ or higher
      H125-5 (SGND) - W31-5 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. CHECK PARKING ASSIST ECU (CV+, CV-) 
    1. Disconnect the H125 parking assist ECU connector.
      GTY1179876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Parking Assist ECU)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 (CV+) - Body ground Always 10 kΩ or higher
      4 (CV-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  4

  4. CHECK PARKING ASSIST ECU (CB+, CGND) 
    1. Disconnect the rear television camera assembly.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      W31-1 (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
      W31-2 (CB+) - W31-1 (CGND) Ignition switch ON 7.5 to 8.5 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REAR TELEVISION CAMERA ASSEMBLY 

    Refer to REMOVAL [12/2019 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

  5. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY) 
    1. Disconnect the H127 parking assist ECU connector.
    2. Disconnect the B9 front television camera assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H127-1 (CB+) - B9-2 (CB+) Always Below 1 Ω
      H127-3 (CV+) - B9-4 (CV+) Always Below 1 Ω
      H127-4 (CV-) - B9-3 (CV-) Always Below 1 Ω
      H127-2 (CGND) - B9-1 (CGND) Always Below 1 Ω
      H127-5 (SGND) - B9-5 (SGND) Always Below 1 Ω
      H127-1 (CB+) or B9-2 (CB+) - Body ground Always 10 kΩ or higher
      H127-3 (CV+) or B9-4 (CV+) - Body ground Always 10 kΩ or higher
      H127-4 (CV-) or B9-3 (CV-) - Body ground Always 10 kΩ or higher
      H127-2 (CGND) or B9-1 (CGND) - Body ground Always 10 kΩ or higher
      H127-5 (SGND) or B9-5 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. CHECK PARKING ASSIST ECU (CV+, CV-) 
    1. Disconnect the H127 parking assist ECU connector.
      GTY1178767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Parking Assist ECU)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 (CV+) - Body ground Always 10 kΩ or higher
      4 (CV-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  7

  7. CHECK PARKING ASSIST ECU (CB+, CGND) 
    1. Disconnect the front television camera assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B9-1 (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
      B9-2 (CB+) - B9-1 (CGND) Ignition switch ON 7.5 to 8.5 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FRONT TELEVISION CAMERA ASSEMBLY 

    Refer to REMOVAL [12/2019 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

  8. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY LH) 
    1. Disconnect the H128 parking assist ECU connector.
    2. Disconnect the J34 outer rear view mirror assembly LH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H128-1 (CB+) - J34-2 (CB+) Always Below 1 Ω
      H128-3 (CV+) - J34-4 (CV+) Always Below 1 Ω
      H128-4 (CV-) - J34-3 (CV-) Always Below 1 Ω
      H128-2 (CGND) - J34-1 (CGND) Always Below 1 Ω
      H128-5 (SGND) - J34-5 (SGND) Always Below 1 Ω
      H128-1 (CB+) or J34-2 (CB+) - Body ground Always 10 kΩ or higher
      H128-3 (CV+) or J34-4 (CV+) - Body ground Always 10 kΩ or higher
      H128-4 (CV-) or J34-3 (CV-) - Body ground Always 10 kΩ or higher
      H128-2 (CGND) or J34-1 (CGND) - Body ground Always 10 kΩ or higher
      H128-5 (SGND) or J34-5 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  9

  9. CHECK PARKING ASSIST ECU (CV+, CV-) 
    1. Disconnect the H128 parking assist ECU connector.
      GTY1180147Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Parking Assist ECU)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 (CV+) - Body ground Always 10 kΩ or higher
      4 (CV-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  10

  10. CHECK PARKING ASSIST ECU (CB+, CGND) 
    1. Disconnect the outer rear view mirror assembly LH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J34-1 (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
      J34-2 (CB+) - J34-1 (CGND) Ignition switch ON 7.5 to 8.5 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  11

  11. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH 
    1. Disconnect the outer rear view mirror assembly LH connector.
      GTY1180436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Side Television Camera Assembly LH)
      *b Component without harness connected
      (Outer Rear View Mirror Assembly LH)
    2. Disconnect the side television camera assembly LH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      2 (CB+) - A-4 (GB+) Always Below 1 Ω
      4 (CV+) - A-3 (GVI+) Always Below 1 Ω
      3 (CV-) - A-1 (GVI-) Always Below 1 Ω
      1 (CGND) - A-2 (CGND) Always Below 1 Ω
      2 (CB+) or A-4 (GB+) - Body ground Always 10 kΩ or higher
      4 (CV+) or A-3 (GVI+) - Body ground Always 10 kΩ or higher
      3 (CV-) or A-1 (GVI-) - Body ground Always 10 kΩ or higher
      1 (CGND) or A-2 (CGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH 

    Refer to REMOVAL [12/2019 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  12

  12. CHECK SIDE TELEVISION CAMERA ASSEMBLY LH 
    1. Replace the side television camera assembly LH with a new or normally functioning one.

      Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    2. Check if the same malfunction reoccurs when the side monitor screen is displayed.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (SIDE TELEVISION CAMERA ASSEMBLY LH WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

  13. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY RH) 
    1. Disconnect the H126 parking assist ECU connector.
    2. Disconnect the J33 outer rear view mirror assembly RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H126-1 (CB+) - J33-2 (CB+) Always Below 1 Ω
      H126-3 (CV+) - J33-4 (CV+) Always Below 1 Ω
      H126-4 (CV-) - J33-3 (CV-) Always Below 1 Ω
      H126-2 (CGND) - J33-1 (CGND) Always Below 1 Ω
      H126-5 (SGND) - J33-5 (SGND) Always Below 1 Ω
      H126-1 (CB+) or J33-2 (CB+) - Body ground Always 10 kΩ or higher
      H126-3 (CV+) or J33-4 (CV+) - Body ground Always 10 kΩ or higher
      H126-4 (CV-) or J33-3 (CV-) - Body ground Always 10 kΩ or higher
      H126-2 (CGND) or J33-1 (CGND) - Body ground Always 10 kΩ or higher
      H126-5 (SGND) or J33-5 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  14

  14. CHECK PARKING ASSIST ECU (CV+, CV-) 
    1. Disconnect the H126 parking assist ECU connector.
      GTY1180148Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Parking Assist ECU)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 (CV+) - Body ground Always 10 kΩ or higher
      4 (CV-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  15

  15. CHECK PARKING ASSIST ECU (CB+, CGND) 
    1. Disconnect the outer rear view mirror assembly RH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J33-1 (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
      J33-2 (CB+) - J33-1 (CGND) Ignition switch ON 7.5 to 8.5 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  16

  16. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH 
    1. Disconnect the side television camera assembly RH connector.
      GTY1180438Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Side Television Camera Assembly RH)
      *b Component without harness connected
      (Outer Rear View Mirror Assembly RH)
    2. Disconnect the outer rear view mirror assembly RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      2 (CB+) - B-4 (GB+) Always Below 1 Ω
      4 (CV+) - B-3 (GVI+) Always Below 1 Ω
      3 (CV-) - B-1 (GVI-) Always Below 1 Ω
      1 (CGND) - B-2 (CGND) Always Below 1 Ω
      2 (CB+) or B-4 (GB+) - Body ground Always 10 kΩ or higher
      4 (CV+) or B-3 (GVI+) - Body ground Always 10 kΩ or higher
      3 (CV-) or B-1 (GVI-) - Body ground Always 10 kΩ or higher
      1 (CGND) or B-2 (CGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH 

    Refer to REMOVAL [12/2019 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  17

  17. CHECK SIDE TELEVISION CAMERA ASSEMBLY RH 
    1. Replace the side television camera assembly RH with a new or normally functioning one.

      Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    2. Check if the same malfunction reoccurs when the side monitor screen is displayed.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (SIDE TELEVISION CAMERA ASSEMBLY RH WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

  18. CHECK GVIF CABLE (Digital video signal line) 
    GTY1122051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front side of GVIF signal line connector
    (to parking assist ECU)
    *b Front side of GVIF signal line connector
    (to radio and display receiver assembly)
    1. Disconnect the H123 parking assist ECU connector.
    2. Disconnect the H124 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
      H123-3 (GVO+) - H124-3 (GVO+) Always Below 1 Ω
      H123-4 (GVO-) - H124-4 (GVO-) Always Below 1 Ω
      H123-5 (SGND) - H124-5 (SGND) Always Below 1 Ω
      H123-3 (GVO+) or H124-3 (GVO+) - Body ground Always 10 kΩ or higher
      H123-4 (GVO-) or H124-4 (GVO-) - Body ground Always 10 kΩ or higher
      H123-5 (SGND) or H124-5 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE GVIF CABLE (DIGITAL VIDEO SIGNAL LINE) 

    Result: 

    OK 

    See step  19

  19. REPLACE WIRE HARNESS (PARKING ASSIST ECU - INE BETWEEN RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Replace the GVIF signal line with a new or known good one.
    2. Check if the same malfunction reoccurs when the panoramic view monitor screen is displayed.

      Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen. [10/2022 - ] 

      Result

      Result Proceed to
      Display normally A
      Abnormality reproduces B

      HINT: 

      If the panoramic view monitor screen is displayed normally after exchanging the GVIF signal line between the parking assist computer and the radio and display receiver assembly, it can be determined that the GVIF signal line between the parking assist computer and the radio and display receiver assembly is defective.

    Result: 

    END (DEFECTIVE GVIF SIGNAL LINE) 

    Result: 

    See step  20

  20. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Replace the radio and display receiver assembly with a new or known good one.

      Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    2. Check if the same malfunction reoccurs when the panoramic view monitor screen is displayed.

      Result

      Result Proceed to
      Display normally A
      Abnormality reproduces B

    Result: 

    RADIO AND DISPLAY RECEIVER ASSEMBLY (RADIO AND DISPLAY RECEIVER ASSEMBLY DEFECTIVE) 

    Result: 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

  21. CAMERA IMAGE CHECK 
    1. One by one in order, repeatedly disconnect then reconnect the H125, H128, H126 and H127 parking assist ECU connector. When disconnected, check the camera image for a black screen or distortion.
      GTY1249967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result

      Result Proceed to
      When connector H125 is disconnected, only the rear camera image is black or distorte A
      When connector H127 is disconnected, only the front camera image is black or distorted B
      When connector H128 is disconnected, only the left-side camera image is black or distorted C
      When connector H126 is disconnected, only the right-side camera image is black or distorted D
      Other than above E

    Result: 

    See step  2

    Result: 

    See step  5

    Result: 

    See step  8

    Result: 

    See step  13

    Result: 

    REPLACE PARKING ASSIST ECU 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]