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ELECTRONICALLY CONTROLLED BRAKE SYSTEM TC and CG Terminal Circuit

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DTC Code DTC Name
  TC and CG Terminal Circuit
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DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC by blinking the ABS warning light.

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WIRING DIAGRAM

Tip:

When the warning lights continue to blink, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in one or more ECUs is suspected.

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INSPECTION PROCEDURE

Note:

When replacing the skid control ECU, perform initialization and calibration of the linear solenoid valve (Click here).

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PROCEDURE


  1. Click here

    CHECK CAN COMMUNICATION SYSTEM


    1. Check if a CAN communication system DTC is output (Click here).

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

  2. Click here

    CHECK HARNESS AND CONNECTOR (TC of DLC3 - POWER MANAGEMENT CONTROL ECU)


    1. A01NIKJE03

      Disconnect the power management control ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F17-13 (TC) - F97-11 (TC) Always Below 1 Ω
      Table 1. Text in Illustration
      *1 Front view of DLC3
      *2

      Front view of wire harness connector

      (to Power Management Control ECU)

  3. Click here

    CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)


    1. A01NJP4E06

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F17-4 (CG) - Body ground Always Below 1 Ω
      Table 2. Text in Illustration
      *1 Front view of DLC3

  4. Click here

    CHECK HARNESS AND CONNECTOR (TC of DLC3 - BODY GROUND)


    1. A01NJP4E07

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F17-13 (TC) - Body ground Always 10 kΩ or higher
      Table 3. Text in Illustration
      *1 Front view of DLC3
      Tip:

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (Click here).


  5. Click here

    REPLACE SKID CONTROL ECUClick here

  6. Click here

    INSPECT CAN COMMUNICATION SYSTEMClick here

  7. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. Click here

    REPAIR OR REPLACE WIRE HARNESS OR EACH ECU