Canada - Wiper System - Rain Sensor Failsafe Mode Operation

Bulletin
0546

Issue Date
2002-06-28

Market
Canada

Reference
BE-02-005

Model
LS430

Year Range
2001, 2002

Component
BE

Subject:
RAIN SENSOR FAILSAFE MODE OPERATION

When the temperature of the rain sensor drops below 5°F (-15°C) or rises above 176°F (80°C), or the sensor experiences an internal failure, the wiper operation will default to "Failsafe Mode" if the wiper switch is in the "Auto" position. The sensor logic has been modified to prevent wiper operation during high ambient (heat) conditions when the wiper switch is in the "Auto" position.

APPLICABLE VEHICLES: 2001 - 2002 model year LS430 produced before the VIN shown below.







PRODUCTION CHANGE INFORMATION:







AUTO WIPER OPERATION UNDER THE "FAILSAFE MODE":







PARTS INFORMATION:







REPAIR TIME:

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.