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Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - ECM) 
    1. Disconnect the A37 connector from the ECM.
    2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance 

    RESISTANCE SPECIFIED CONDITION

    Tester Connection Condition Specified Condition
    A37-27 (TC) - E15-13 (TC) Always Below 1 Ω
    Fig 1: Identifying Terminal TC Of DLC3 And ECM Connector
    G06043043Courtesy 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 SPECIFIED CONDITION

    Tester Connection Condition Specified condition
    E15-4 (CG) - Body ground Always Below 1 Ω
    Fig 2: Identifying Terminal CG Of DLC3 Connector
    G06043044Courtesy 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 

    RESISTANCE SPECIFIED CONDITION

    Tester Connection Condition Specified Condition
    E15-13 (TC) - Body ground Always 10 kΩ or higher
    Fig 3: Identifying Terminal TC Of DLC3 Connector
    G06043045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU 

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