ELECTRONICALLY CONTROLLED BRAKE SYSTEM > 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.

WIRING DIAGRAM


C109399E02


INSPECTION PROCEDURE

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

1.INSPECT DLC3 (TC AND CG TERMINAL)


    C052361E70

  1. Turn the engine switch on (IG).

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

    Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    L16-13 (TC) - Body ground
    		Engine switch on (IG)
    		10 to 14 V

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

    Resistance:
    Tester Connection
    		Specified Condition
    L16-4 (CG) - Body ground
    		Below 1 Ω



NG
Go to step 3
OK


2.CHECK CAN COMMUNICATION SYSTEM

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

    Result:

    Condition
    		Proceed To
    DTC is not output
    		A
    DTC is output
    		B

    HINT:
    If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part (Click here).



B
REPAIR CAN COMMUNICATION SYSTEM
A


3.CHECK HARNESS AND CONNECTOR (DLC3 (TC) TO ECM)


    C110540E02

  1. Disconnect the ECM connector.

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

    Resistance:
    Tester Connection
    		Specified Condition
    L16-13 (TC) - A7-3 (TC)
    		Below 1 Ω

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

    Resistance:
    Tester Connection
    		Specified Condition
    L16-13 (TC) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (DLC3 (CG) TO BODY GROUND)


    C052361E71

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

    Resistance:
    Tester Connection
    		Specified Condition
    L16-4 (CG) - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK ECM (DLC3 (TC) INPUT)


    C052361E70

  1. Using SST, connect terminals TC and CG of the DLC3.

SST
09843-18040  

  1. Check if the engine warning light is blinking.

    Result:

    Condition
    		Proceed To
    Engine warning light is blinking
    		A
    Engine warning light is not blinking
    		B



B
REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM (TC) CIRCUIT)
A


6.CHECK CAN COMMUNICATION SYSTEM

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

    Result:

    Condition
    		Proceed To
    DTC is not output
    		A
    DTC is output
    		B

    HINT:
    If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part (Click here).



B
REPAIR CAN COMMUNICATION SYSTEM
A

REPLACE SKID CONTROL ECU