Vehicle Stability Control System Slip Indicator Light Does Not Come On


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

CHECK TERMINAL VOLTAGE (IG1 TERMINAL)

CHECK HARNESS AND CONNECTOR (GND1 TERMINAL)

INSPECT VSC OFF SWITCH

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

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SLIP INDICATOR LIGHT)

VEHICLE STABILITY CONTROL SYSTEM - Slip Indicator Light does not Come ON


DESCRIPTION

Refer to Slip Indicator Light Remains ON (Toyota Fortuner RM000003O4K00EX.html).

WIRING DIAGRAM

Refer to VSC OFF Indicator Light Remains ON (Toyota Fortuner RM000003O4K00EX.html).

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 IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

  1. Check if the skid control ECU (brake actuator assembly) connector is securely connected.

    OK:
    The connector is securely connected.


NG
CONNECT CONNECTOR TO ECU CORRECTLY
OK


2.CHECK TERMINAL VOLTAGE (IG1 TERMINAL)

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (brake actuator assembly) connector.



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

  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
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU [Brake Actuator Assembly])


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (GND1 TERMINAL)

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (brake actuator assembly) 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

  1. Turn the ignition switch off.

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

  1. Inspect the VSC OFF switch (Toyota Fortuner RM000001WZ000SX.html).



NG
REPLACE VSC OFF SWITCH (Toyota Fortuner RM000001WZ200QX.html)
OK


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

  1. Turn the ignition switch off.

  1. Disconnect the VSC OFF switch connector.

  1. Disconnect the skid control ECU (brake actuator assembly) 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.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (brake actuator assembly) connector.

  1. Disconnect the C28 combination meter connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    S25-15 (VSCW) - C28-16
    		Always
    		Below 1 Ω
    S25-15 (VSCW) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


7.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SLIP INDICATOR LIGHT)

  1. Turn the ignition switch off.

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the intelligent tester on.

  1. Enter the following menus: Chassis / ABS/VSC/TRC / Active Test.

    ABS/VSC/TRC
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Slip Indicator Light
    		Slip indicator light
    		Indicator light ON / OFF
    		Observe the combination meter.

  1. When performing the Slip Indicator Light Active Test, check Slip Indicator Light in the Data List.

    ABS/VSC/TRC
    Tester Display
    		Measurement Item / Range
    		Normal Condition
    		Diagnostic Note
    Slip Indicator Light
    		Slip indicator light /
    ON or OFF
    		ON: Slip indicator light on
    OFF: Slip indicator light off
    		-

Result
Result
Proceed to
Data List Display
Data List Display When Performing Active Test ON/OFF Operation
ON
Does not change between ON and OFF
A
Changes between ON and OFF
B
OFF
Does not change between ON and OFF
A
Changes between ON and OFF
B


B
GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Toyota Fortuner RM0000011IT01AX.html)
A

REPLACE BRAKE ACTUATOR ASSEMBLY (Toyota Fortuner RM0000010K0010X.html)