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Distance Control ECU Communication Stop Mode: Procedure

  1. CHECK OPEN IN CAN BUS WIRE (DISTANCE CONTROL ECU BRANCH LINE) 
    1. Turn the engine switch off.
    2. Disconnect the distance control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 1: Identifying Distance Control Ecu Branch Line
      GTY135813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      J17-8 (CANH) - J17-9 (CANL) Engine switch off 54 to 69 Ω

    NG → REPAIR OR REPLACE DISTANCE CONTROL ECU BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L) 

    OK: Go to next step 

  2. CHECK WIRE HARNESS (+B, GND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying Distance Control Ecu Branch Line
      GTY135812Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      J17-12 (GND) - Body ground Always Below 1 Ω
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      J17-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V

    OK → REPLACE DISTANCE CONTROL ECU 

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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