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Last Modified: 11-27-2007 1.6 D
Service Category: Steering Section: Steering Column
Model Year: 2008 Model: LX570 Doc ID: RM000000XO600JX
Title: VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DIAGNOSIS SYSTEM (2008 LX570)

DIAGNOSIS SYSTEM

1. FUNCTION OF WARNING LIGHT AND MESSAGE

(a) If a malfunction occurs during system operation, the master warning light on the combination meter comes on and "Check VGRS System" will be displayed on the multi-information display to inform the driver of the system malfunction.

2. DTC

(a) Normal mode.

(1) DTCs are stored in the steering control ECU and read using the Techstream VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

(b) Test mode.

(1) By switching from normal mode to test mode, the steering angle sensor can be inspected VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: TEST MODE PROCEDURE (2008 LX570) .

HINT:

Whether the system is in normal mode or test mode can be checked from the indication on the multi-information display. For details of the indication and how to check, refer to "DTC Check/Clear" VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

3. CHECK MASTER WARNING LIGHT

(a) Turn the engine switch on (IG).

(b) Check that the master warning light comes on for 2 seconds.

HINT:

If the master warning light (VGRS) check result is not normal, proceed to troubleshooting of the warning light circuit.

Trouble Area

See Procedure

Master warning light circuit

VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DESCRIPTION (2008 LX570)