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Home >> Lexus >> 2007 >> GS 450h >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication >> Can Communication System >> Distance Control ECU Communication Stop Mode >> Inspection Procedure

Inspection Procedure

  1. CHECK CAN BUS LINE FOR DISCONNECTION (DISTANCE CONTROL ECU BRANCH WIRE) 
    1. Disconnect the K13 distance control ECU connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      K13-8 (CANH) - K13-9 (CANL) Power switch OFF 54 to 69 Ω
      Fig 1: Identifying K13 Distance Control ECU Connector Terminal
      G05312454Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE DISTANCE CONTROL ECU BRANCH WIRE OR CONNECTOR (CANH, CANL) 

    OK: GO TO Next Step 

  2. CHECK WIRE HARNESS (DISTANCE CONTROL ECU - BATTERY AND BODY GROUND) 
    1. Disconnect the K13 distance control ECU connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      K13-10 (SGND) - Body ground Below 1 Ω
      K13-12 (GND) - Body ground Below 1 Ω
    3. Measure the voltage of the wire harness side connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      K13-1 (B) - Body ground Power switch ON (IG) 10 to 14 V
      Fig 2: Identifying K13 Distance Control ECU Connector Terminal
      G05312455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE DISTANCE CONTROL ECU 

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