AUTO LSD Indicator Light Remains ON

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: AUTO LSD Indicator Light Remains ON
- AUTO LSD Indicator Light Remains ON

DESCRIPTION

The AUTO LSD is a system for 2WD vehicles. When the VSC OFF switch is pushed on, the AUTO LSD function is available and the AUTO LSD indicator light illuminates.

HINT
The AUTO LSD does not operate even if the VSC OFF switch is pressed under the following conditions:

* The TRAC or VSC system is faulty.
* The temperature inside the brake actuator assembly increases and the AUTO LSD operation is suspended.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output How to Proceed With Troubleshooting.

Result:





OK:

The connector is securely connected.

B -- REPAIR CAN COMMUNICATION SYSTEM CAN Communication System
A -- Continue to next step.

2. CHECK SKID CONTROL ECU CONNECTOR

(a) Check if the skid control ECU connector is securely connected.

OK:

The connector is securely connected.

NG -- CONNECT CONNECTOR CORRECTLY
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND)

(a) Disconnect the skid control ECU connector.





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

Standard Resistance:





OK -- INSPECT COMBINATION METER ASSEMBLY
NG -- Continue to next step.

4. INSPECT TRACTION CONTROL SWITCH (VSC OFF SWITCH)

(a) Remove the VSC OFF switch Removal.





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

Standard Resistance:





NG -- REPLACE TRACTION CONTROL SWITCH (VSC OFF SWITCH)
OK -- Continue to next step.

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





(a) Disconnect the skid control ECU connector.

(b) Disconnect the VSC OFF switch connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. INSPECT COMBINATION METER ASSEMBLY

(a) Inspect the combination meter How To Proceed With Troubleshooting.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal