ELECTRONICALLY CONTROLLED BRAKE SYSTEM > Slip Indicator Light Remains ON

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DESCRIPTION

The skid control ECU is connected to the combination meter via CAN and multiplex communications.
The SLIP indicator blinks during VSC and/or TR(A)C operation.
When the system fails, the SLIP indicator comes on to warn the driver.
The SLIP indicator comes on when traction control is terminated by pressing the traction OFF switch.

WIRING DIAGRAM


C109397E02


INSPECTION PROCEDURE

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

HINT:
The SLIP indicator light comes on when the traction OFF switch is ON.

1.INSPECT CAN COMMUNICATION SYSTEM

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

    Result:

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



B
REPAIR CAN COMMUNICATION SYSTEM
A


2.INSPECT MULTIPLEX COMMUNICATION SYSTEM

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

    Result:

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



B
REPAIR MULTIPLEX COMMUNICATION SYSTEM
A


3.INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

  1. Check the skid control ECU connector's connection.

    OK:
    The connector should be securely connected.



NG
CONNECT CONNECTOR TO ECU CORRECTLY
OK


4.INSPECT BATTERY

  1. Check the battery voltage.

    Voltage:
    11 to 14 V



NG
INSPECT CHARGING SYSTEM
OK


5.INSPECT TRACTION OFF SWITCH


    C106610E02

  1. Remove the traction OFF switch.

  1. Disconnect the traction control switch connector.

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

    Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 - 4
    		Pressed
    		Below 1 Ω
    3 - 4
    		Not pressed
    		10 kΩ or higher



NG
REPLACE TRACTION OFF SWITCH
OK


6.INSPECT TRACTION OFF SWITCH (GROUND TERMINAL)


    C106611E04

  1. Disconnect the traction OFF switch connector.

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

    Resistance:
    Tester connection
    		Specified condition
    L43-4 - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)
OK


7.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU TO TRACTION OFF SWITCH)


    C111036E02

  1. Disconnect the skid control ECU connector and the traction OFF switch connector.

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

    Resistance:
    Tester connection
    		Specified condition
    A15-36 (CSW) - L43-3
    		Below 1 Ω
    A15-36 (CSW) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.INSPECT COMBINATION METER ASSEMBLY

  1. Check the combination meter assembly (Click here).

    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).



NG
REPLACE COMBINATION METER ASSEMBLY
OK

REPLACE SKID CONTROL ECU