Vehicle Stability Control System (For Vacuum Brake Booster) Tc And Cg Terminal Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

INSPECT DLC3

INSPECT ECM (DLC3 INPUT)

CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

INSPECT ECM (DLC3 INPUT)

VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster) - 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 slip indicator light.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System.Vehicle Stability Control System (For Vacuum Brake Booster) Tc And Cg Terminal Circuit

HINT:
When the warning lights continue to blink, a ground short in the wiring of terminal 13 (TC) of the DLC3 or an internal ground short in one or more ECUs is suspected.

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform calibration (LandCruiser RM000000XHR0BKX.html).
1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if CAN communication system DTCs are output (for LHD without Entry and Start System: LandCruiser RM000000WIB0EDX.html, for LHD with Entry and Start System: LandCruiser RM000000WIB0ECX.html).

    Result
    Result
    		Proceed to
    DTC not output
    		A
    DTC output
    		for LHD without Entry and Start System
    		B
    DTC output
    		for LHD with Entry and Start System
    		C


B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000001RSO0BYX.html)

C
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000001RSO0C5X.html)
A


2.INSPECT DLC3


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System.Vehicle Stability Control System (For Vacuum Brake Booster) 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
    G48-13 (TC) - G48-4 (CG)
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of DLC3


NG
Go to step 4
OK


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

  1. Turn the ignition switch off.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System.Vehicle Stability Control System (For Vacuum Brake Booster) 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:
    Refer to the ECM installation procedure (LandCruiser RM000000VW203EX.html)


B
REPAIR OR REPLACE WIRE HARNESS OR ECM
A

REPLACE BRAKE ACTUATOR ASSEMBLY (LandCruiser RM0000034UX02TX.html)

4.CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

  1. Turn the ignition switch off.

  1. Disconnect the G180 ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G48-13 (TC) - G180-19 (TC)
    		Always
    		Below 1 Ω
    G48-13 (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
    G48-4 (CG) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


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

  1. Turn the ignition switch off.

  1. Connect the G180 ECM connector.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System.Vehicle Stability Control System (For Vacuum Brake Booster) 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 (LandCruiser RM0000034UX02TX.html)