Traction Control - Intermittent VSC Activation/Lamp ON

BRAKES
BR006-04

Title:
STEERING ANGLE SENSOR

Models:
'04 LS 430

December 20, 2004

Introduction

Some customers may experience an intermittent VSC activation after starting the engine and driving straight. This condition is always accompanied by the instrument panel VSC light and audible warning buzzer turning on at the same time. To prevent this condition, the Steering Angle Sensor has been changed.

Applicable Vehicles

^ 3004 model year LS 430 vehicles produced BEFORE the Production Change Effective VIN shown below.





Production Change Information





Parts Information





Warranty Information

Applicable Warranty*:

This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.

* Warranty application is limited to correction of a problem based upon a customer's specific complaint.





Required SSTs

Repair Procedure

1. Check for ABS/VSC DTCs using the Diagnostic Tester.

2. If ABS/VSC DTC(s) are present, then follow diagnostics for specific DTC(s).

3. If no ABS/VSC DTC(s) are present, then remove and replace the steering angle sensor following the procedures outlined in the Technical Information System (TIS), 2004 model year LS 430 Repair Manual: Brake: Steering Sensor: Replacement.

4. Perform Zero Point Calibration. Refer to TSIB No. BR001-04 "Zero Point Calibration."

5. Road test vehicle.