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TC and CG Terminal Circuit: Wiring Diagram

Fig 1: Identifying TC and CG Terminal Wiring Diagram
G04049281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. CHECK WIRE HARNESS (TERMINAL TC of DLC3 - ECM) 
    1. Disconnect the A6 connector from the ECM.
    2. Measure the resistance according to the value(s) in the table below.

    Standard resistance 

    TESTER CONNECTION AND SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    A6-3 (TC) - J21-13 (TC) Always Below 1Ω
    Fig 2: Checking Wire Harness (Terminal TC Of DLC3 - ECM)
    G04049282Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    OK : Go To Next Step 

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

    Standard resistance 

    TESTER CONNECTION AND SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    J21-4 (CG) - Body ground Always Below 1Ω
    Fig 3: Checking Wire Harness (Terminal CG Of DLC3 - Body Ground)
    G04049283Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    OK : Go To Next Step 

  3. CHECK WIRE HARNESS (TERMINALTC of DLC3 - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

    Standard resistance 

    TESTER CONNECTION AND SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    J21-13 (TC) - Body ground Always 10 kΩ or higher

    NG : REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU 

    Fig 4: Checking Wire Harness (Terminal TC Of DLC3 - Body Ground)
    G04049284Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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