Canada - ABS/TCS - Int. VSC Activation When Driving Straight

Bulletin
TSB2138R

Issue Date
November 30, 2004

Market
Canada


Title
STEERING ANGLE SENSOR

Component
STEERING

Models
'04 Highlander & Sienna

TSB REVISION NOTICE:
- February 25, 2005: The Production Change Information table has been updated.
The previous TSB should be discarded.

INTRODUCTION:

Some customers may experience an intermittent VSC activation while driving straight from a time of engine start. 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:
- 2004 model year Highlander and Sienna vehicles produced BEFORE the Production Change Effective VINs shown below.






PRODUCTION CHANGE INFORMATION:






PARTS INFORMATION:






WARRANTY INFORMATION:






REQUIRED SSTs:

REPAIR PROCEDURE:

1. Check for ABS/VSC DTCs using 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 ETAS, 2004 model year Highlander or Sienna Repair Manual: Brake, Steering Sensor.
4. Perform Zero Point Calibration. Refer to TSB1332, "Zero Point Calibration."
5. Road test vehicle.

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.