Home Brake Brake Control/Dynamic Control System BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM
Last Modified: 11-27-2007 1.6 J
Service Category: Brake Section: Brake Control/Dynamic Control System
Model Year: 2008 Model: LX570 Doc ID: RM000001FQP01DX
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

VSC OFF Indicator Light does not Come ON

DESCRIPTION

When the center differential is locked or the VSC OFF switch is operated, VSC control turns off and the VSC OFF indicator illuminates.

WIRING DIAGRAM



INSPECTION PROCEDURE

NOTICE:

When replacing the master cylinder solenoid, perform zero point calibration BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION (2008 LX570) .

PROCEDURE

1.

CHECK CAN COMMUNICATION LINE

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Select "CAN Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN Bus.

OK:

"CAN Bus Check" indicates no malfunctions in CAN communication.

OK

2.

CHECK DTC (for CAN Communication System)

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Check for DTCs NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570) .

Result

Result

Proceed to

CAN system DTC is not output.

A

CAN system DTC is output.

B

A

3.

CHECK OPERATION OF VSC OFF INDICATOR (ACTIVE TEST)

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(e) Check the condition of the VSC OFF indicator by operating the Techstream.

Combination Meter

Tester Display

Test Part

Control Range

Diagnostic Note

Indicat. Lamp VSC OFF

VSC OFF Indicator

Indicator ON/OFF

-

OK:

The indicator turns on when operating the Techstream.

OK