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Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - ECM) 
    1. Disconnect the E4 connector from the ECM.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E4-23 (TC) - D1-13 (TC) Always Below 1 Ω
      3. Fig 1: Identifying E4 ECM Connector
      G05140614Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - ECM) 

    OK: Go to next step. 

  2. CHECK HARNESS AND CONNECTOR (TERMINAL CG of DLC3 - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      D1-4 (CG) - Body ground Always Below 1 Ω
      2. Fig 2: Identifying CG Terminal Of DLC3
      G05140615Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - BODY GROUND) 

    OK: Go to next step. 

  3. CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      D1-13 (TC) - Body ground Always 10 kΩ or higher
      2. Fig 3: Identifying TC Terminal Of DLC3
      G05140616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS, CONNECTOR, OR EACH ECU 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )

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