Vehicle Stability Control System Tc And Cg Terminal Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

INSPECT DLC3

CHECK ECM (DLC3 INPUT)

CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

CHECK ECM (DLC3 INPUT)

VEHICLE STABILITY CONTROL SYSTEM - TC and CG Terminal Circuit


DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the ECU to output the DTCs by blinking the ABS warning light and VSC OFF indicator light.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Tc And Cg Terminal Circuit

HINT:
When the warning light and indicator light continue to blink, there may be a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in one or more ECUs.

INSPECTION PROCEDURE

NOTICE:
  1. After replacing the brake actuator assembly, perform calibration (Toyota Fortuner RM000000XHR06WX.html).
  2. Before disconnecting the connector, make sure that there are no problems with the connection.
  3. After disconnecting the connector, make sure that the connector case and terminals are not deformed or corroded.
1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if a CAN communication system DTC is output (Toyota Fortuner RM000002VT900NX.html).

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


B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Toyota Fortuner RM000002VT000OX.html)
A


2.INSPECT DLC3


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Tc And Cg Terminal Circuit

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    D3-13 (TC) - D3-4 (CG)
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of DLC3


NG
Go to step 4
OK


3.CHECK ECM (DLC3 INPUT)
SST
09843-18040

  1. Turn the ignition switch off.

  1. Connect the ECM connector.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Tc And Cg Terminal Circuit

  1. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

    Text in Illustration
    *a
    		Front view of DLC3

  1. Turn the ignition switch to ON.

  1. Check that the MIL is blinking.

    Result
    Result
    		Proceed to
    MIL is blinking
    		A
    MIL is not blinking
    		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 (Toyota Fortuner RM000000XHN0BDX.html).


B
REPAIR OR REPLACE WIRE HARNESS OR ECM
A

REPLACE BRAKE ACTUATOR ASSEMBLY (Toyota Fortuner RM0000010K0010X.html)

4.CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

  1. Turn the ignition switch off.

  1. for 1GR-FE:
    Disconnect the E14 ECM connector.
    for 1KD-FTV and 2KD-FTV:
    Disconnect the E4 ECM connector.

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

    Standard Resistance:
    for 1GR-FE
    Tester Connection
    		Condition
    		Specified Condition
    D3-13 (TC) - E14-23 (TC)
    		Always
    		Below 1 Ω
    D3-13 (TC) - Body ground
    		Always
    		10 kΩ or higher
    for 1KD-FTV and 2KD-FTV
    Tester Connection
    		Condition
    		Specified Condition
    D3-13 (TC) - E4-11 (TC)
    		Always
    		Below 1 Ω
    D3-13 (TC) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D3-4 (CG) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.CHECK ECM (DLC3 INPUT)
SST
09843-18040

  1. Turn the ignition switch off.

  1. Connect the ECM connector.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Tc And Cg Terminal Circuit

  1. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

    Text in Illustration
    *a
    		Front view of DLC3

  1. Turn the ignition switch to ON.

  1. Check that the MIL is blinking.

    Result
    Result
    		Proceed to
    MIL is blinking
    		A
    MIL is not blinking
    		B


B
REPAIR OR REPLACE WIRE HARNESS OR ECM
A

REPLACE BRAKE ACTUATOR ASSEMBLY (Toyota Fortuner RM0000010K0010X.html)