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TC and CG Terminal Circuit: Wiring Diagram

Fig 1: Identifying TC And CG Terminal Wiring Diagram
G04049214Courtesy 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: Disconnecting A6 Connector From ECM
    G04049215Courtesy 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: Identifying Terminal CG Of DLC3
    G04049216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    OK : Go To Next Step 

  3. CHECK WIRE HARNESS (TERMINAL TC 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
Fig 4: Checking Wire Harness (Terminal TC Of DLC3 - Body Ground)
G04049217Courtesy 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