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Parking Assist ECU Communication Stop Mode [06/2017 - 10/2020]: Procedure

  1. CHECK FOR OPEN IN CAN BUS LINES (TELEVISION CAMERA CONTROLLER BRANCH LINE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the R41 television camera controller connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      R41-12 (CANH) - R41-13 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      GTY741230Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Television Camera Controller)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TELEVISION CAMERA CONTROLLER) 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      R41-3 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
      GTY741231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Television Camera Controller)
    2. Reconnect the cable to the negative (-) battery terminal.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      R41-2 (+B) - Body ground Always 11 to 14 V
      R41-1 (ACC) - Body ground Ignition switch ACC 11 to 14 V
      R41-6 (IG) - Body ground Ignition switch ON 11 to 14 V

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE TELEVISION CAMERA CONTROLLER. Refer to  REMOVAL [06/2017 - 10/2020] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)