Anti-Lock Brake System (For Sedan) Tc And Cg Terminal Circuit

Brake. Yaris. Ncp93, 131
Brake Control Dynamic Control Systems. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

INSPECT DLC3

CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)

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

INSPECT ECM (TC of DLC3 INPUT)

ANTI-LOCK BRAKE SYSTEM (for Sedan) - TC and CG Terminal Circuit


DESCRIPTION

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

WIRING DIAGRAM


Yaris. Ncp93, 131.Brake Control Dynamic Control Systems.Anti-Lock Brake System (For Sedan).Anti-Lock Brake System (For Sedan) Tc And Cg Terminal Circuit

HINT:
When the warning lights 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

1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if CAN communication system DTCs are output (YARIS_NCP93 RM000001D3E00OX.html).

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


B
GO TO CAN COMMUNICATION SYSTEM (YARIS_NCP93 RM000001D3500JX.html)
A


2.INSPECT DLC3


    Yaris. Ncp93, 131.Brake Control Dynamic Control Systems.Anti-Lock Brake System (For Sedan).Anti-Lock Brake System (For Sedan) Tc And Cg Terminal Circuit

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    D15-13 (TC) - D15-4 (CG)
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of DLC3
    Result
    Result
    		Proceed to
    NG
    		A
    OK
    		B


B
Go to step 5
A


3.CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)

  1. Turn the ignition switch off.

  1. Disconnect the A21 ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D15-13 (TC) - A21-27 (TC)
    		Always
    		Below 1 Ω
    D15-13 (TC) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the A58 ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


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

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D15-4 (CG) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.INSPECT ECM (TC of DLC3 INPUT)
SST
09843-18040


    Yaris. Ncp93, 131.Brake Control Dynamic Control Systems.Anti-Lock Brake System (For Sedan).Anti-Lock Brake System (For Sedan) Tc And Cg Terminal Circuit

  1. Turn the ignition switch off.

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

  1. Turn the ignition switch to ON.

  1. Check that the Malfunction Indicator Lamp (MIL) is blinking.

    Text in Illustration
    *a
    		Front view of DLC3
    Result
    Result
    		Proceed to
    Malfunction Indicator Lamp (MIL) is blinking
    		A
    Malfunction Indicator Lamp (MIL) is not blinking
    		B


B
SFI SYSTEM
A

REPLACE BRAKE ACTUATOR ASSEMBLY (YARIS_NCP93 RM000001BXP02FX.html)