Vehicle Stability Control System Vsc Off Indicator Light Does Not Come On


WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU IG1 TERMINAL)

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU GND1 TERMINAL)

INSPECT VSC OFF SWITCH

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (VSC WARNING LIGHT)

VEHICLE STABILITY CONTROL SYSTEM - VSC OFF Indicator Light does not Come ON


WIRING DIAGRAM

Refer to VSC OFF Indicator Light Remains ON (Toyota Fortuner RM000003O4M007X_02.html).

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration (Toyota Fortuner RM000000XHR02TX.html).
1.CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

  1. Check if the skid control ECU connector is securely connected.

    OK:
    The connector is securely connected.


NG
CONNECT CONNECTOR TO ECU CORRECTLY
OK


2.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU IG1 TERMINAL)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Vsc Off Indicator Light Does Not Come On

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    S25-34 (IG1) - Body ground
    		Ignition switch ON
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU GND1 TERMINAL)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Vsc Off Indicator Light Does Not Come On

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    S25-1 (GND1) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT VSC OFF SWITCH


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Vsc Off Indicator Light Does Not Come On

  1. Turn the ignition switch off.

  1. Remove the VSC OFF switch (Toyota Fortuner RM000001WZ200QX.html).

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    3 - 4
    		Switch is pushed and held
    		Below 1 Ω
    3 - 4
    		Switch is not pushed
    		10 kΩ or higher


NG
REPLACE VSC OFF SWITCH
OK


5.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Vsc Off Indicator Light Does Not Come On

  1. Turn the ignition switch off.

  1. Disconnect the VSC OFF switch connector.

  1. Disconnect the skid control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    S25-30 (CSW) - V5-3
    		Always
    		Below 1 Ω
    S25-30 (CSW) - Body ground
    		Always
    		10 kΩ or higher
    V5-4 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (VSC WARNING LIGHT)

  1. Perform the Active Test of the skid control ECU using the intelligent tester (Toyota Fortuner RM000000XHW080X.html).

  1. Check the Data List.

    OK:
    "VSC Warning Light" in the Data List changes between ON and OFF when the ON/OFF operation of "VSC Warning Light" in the Active Test is performed.


NG
REPLACE BRAKE ACTUATOR ASSEMBLY
OK

REPLACE COMBINATION METER ASSEMBLY