Vehicle Stability Control System Abs Warning Light Does Not Come On


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ABS WARNING LIGHT

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

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ABS WARNING LIGHT)

VEHICLE STABILITY CONTROL SYSTEM - ABS Warning Light does not Come ON


DESCRIPTION

Refer to ABS Warning Light Remains ON (Toyota Fortuner RM000003O4G00UX.html).

WIRING DIAGRAM

Refer to ABS Warning Light Remains ON (Toyota Fortuner RM000003O4G00UX.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 ABS WARNING LIGHT

  1. Turn the ignition switch off.

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

  1. Turn the ignition switch to ON.

  1. Check that the ABS warning light comes on.

    OK:
    The ABS warning light comes on.


NG
Go to step 2
OK

REPLACE BRAKE ACTUATOR ASSEMBLY (Toyota Fortuner RM0000010K0010X.html)

2.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 C27 combination meter connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    S25-10 (WA) - C27-38 (LP)
    		Always
    		Below 1 Ω
    S25-10 (WA) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ABS WARNING 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
    ABS Warning Light
    		ABS warning light
    		Warning light ON / OFF
    		Observe the combination meter.

  1. When performing the ABS Warning Light Active Test, check ABS Warning Light in the Data List.


ABS/VSC/TRC
Tester Display
Measurement Item / Range
Normal Condition
Diagnostic Note
ABS Warning Light
ABS warning light /
ON or OFF
ON: ABS warning light on
OFF: ABS warning 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)