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Last Modified: 11-27-2007 1.6 D
Service Category: Brake Section: Brake Control/Dynamic Control System
Model Year: 2008 Model: LX570 Doc ID: RM000001DWV00OX
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DIAGNOSIS SYSTEM (2008 LX570)

DIAGNOSIS SYSTEM

1. DIAGNOSIS

(a) If the skid control ECU detects a malfunction, the ABS/brake warning lights and slip/CRAWL indicator lights and/or "Check VSC System" on the multi-information display will come on to warn the driver.

The table below indicates which lights will come on when there is a malfunction in a particular function.

Item/Trouble Area

Multi-terrain ABS

BA

EBD

VSC

A-TRAC

CRAWL

Hill-start Assist Control

ABS Warning Light

○

○

○

-

-

-

-

Brake Warning Light

-

-

○

-

-

-

-

Check VSC System

-

-

-

●

●

●

●

Slip Indicator Light

-

-

-

○

○

○

○

CRAWL Indicator Light

-

-

-

-

-

●

(During CRAWL control operation)

-

○: Light on ●: Light on (Blinking) -: Light off

  • The DTCs are simultaneously stored in memory. The DTCs can be read by connecting SST between terminals 13 (TC) and 4 (CG) of the DLC3 and observing the blinking of the ABS warning light, or by connecting the Techstream.
  • This system has a signal check function (test mode).

2. WARNING LIGHT AND INDICATOR LIGHT CHECK

(a) Release the parking brake lever.

NOTICE:

When releasing the parking brake, set chocks to hold the vehicle for safety.

HINT:

When the parking brake is applied or the level of the brake fluid is low, the brake warning light comes on.

(b) When the engine switch is turned on (IG), check that the ABS and brake warning lights and the VSC OFF, slip and CRAWL indicator lights turn on and then turn off after the engine starts.

If a light remains on, proceed to troubleshooting for the light circuit below.

Trouble Area

See Procedure

ABS warning light circuit

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

Brake warning light circuit

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

VSC OFF indicator light circuit

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

Slip indicator light circuit

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)

CRAWL indicator light circuit

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570)