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Last Modified: 11-27-2007 1.6 J
Service Category: Brake Section: Brake Control/Dynamic Control System
Model Year: 2008 Model: LX570 Doc ID: RM000001DXZ00OX
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

Slip Indicator Light Remains ON

DESCRIPTION

The slip indicator light blinks during VSC, A-TRAC, CRAWL or hill-start assist control operation.

When the system fails, the slip indicator light comes on to warn the driver BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DIAGNOSIS SYSTEM (2008 LX570) .

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.

INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

(a) Check the skid control ECU connector connection.

OK:

The connector is securely connected.

OK

2.

INSPECT BATTERY

(a) Check the battery voltage.

Standard Voltage:

11 to 14 V

OK

3.

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

4.

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

5.

CHECK OPERATION OF SLIP INDICATOR LIGHT (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 slip indicator light by operating the Techstream.

Combination Meter

Tester Display

Test Part

Control Range

Diagnostic Note

Indicat. Lamp Slip

Slip Indicator Light

Indicator light ON/OFF

-

OK:

The indicator light turns on/off when operating the Techstream.

OK