Canada - Tire Monitoring System - TPMS Initialization
BulletinTSB2149
Issue Date
August 22, 2005
Title
INITIALIZATION OF TIRE PRESSURE WARNING SYSTEM DURING PDS
Component
GENERAL INFORMATION
Models
'06 LS 430
INTRODUCTION:
While the vehicle is in motion, the Tire Pressure Warning System (TPWS) monitors the wheel speed signals that are output by the speed sensors for the brake control system. The system informs the driver if it detects low tire pressure in one or more of the tires.
To operate the Tire Pressure Warning System under normal conditions, the TPWS ECU must be initialized with the tires at the specified tire inflation pressure.
Tire pressure is set high at the assembly plant for transport and storage to prevent tire flat spots. Therefore, after adjusting all the tires to the standard air pressure, please perform initialization of the TPWS ECU at your dealership prior to delivery.
APPLICABLE VEHICLES:
- 2006 model year LS 430 vehicles.
WARRANTY INFORMATION:
INITIALIZATION PROCEDURE:
1. Adjust all tires to the standard air pressure.
2. Turn the ignition switch to the "ON" position and then check that "Pressure Initial" appears on the multi-information display.
3. Push and hold the tire pressure warning reset switch until the low tire pressure warning light and "Pressure Initial" light goes off on the multi-information display.
NOTE:
If the low tire pressure warning light does not go off, release your finger from the tire pressure warning reset switch and press it once again.
REFERENCE:
While TPWS initialization is in progress, the tire pressure will be monitored.
The TPWS ECU will start to record vehicle data once the initialization process has started. The data collection process and initialization completion will depend on the vehicle owner's driving patterns, habits, and trip duration. Once the data collection process is complete, the accuracy of tire pressure detection will be increased.