Tire Monitor System - Transmitter Activation Procedure

PRE-DELIVERY SERVICE
PD024-06

Title:
TIRE PRESSURE SENSING
TRANSMITTER ACTIVATION PROCEDURE

Models:
'07 ES 350

March 10, 2006

Introduction

The 2007 model year ES 350 is equipped with a direct type Tire Pressure Warning System (TPWS). A tire pressure sensing transmitter is built into each tire valve, and the measured tire pressure data is transmitted through a Tire Pressure Warning System antenna to the tire pressure monitoring system receiver.

During Pre-Delivery Service (PDS), the tire pressure sensing transmitters must be activated according to the procedure in this bulletin.

Applicable Vehicles

^ 2007 model year ES 350 vehicles.

Reference Information








NOTE:

^ After all the tire pressure sensing transmitters are activated, the flashing Low Tire Pressure Warning Light goes OFF.

^ The Diagnostic Trouble Codes (DTCs) listed below may be stored in the system until the tire pressure sensing transmitters are activated.

^ The codes will automatically clear when the tire pressure sensing transmitters are activated.





Warranty Information





Required SSTs

Activation Procedure





1. Check that the tire pressure warning switch is in the MAIN" position.





2. Turn the engine switch to the "IG-ON" mode and check that the Low Tire Pressure Warning Light blinks.





3. Rapidly reduce the tire pressure by 6.0 psi (0.4 kgf/sq.cm, 40 kPa) or more within 30 seconds.

This operation is required for the system to be activated and must be performed for each tire, one at a time.

Check that the Low Tire Pressure Warning Light goes OFF after all the tire pressure sensing transmitters are activated.

NOTE:
This operation is required for the system to be activated and must be performed for each tire (except the compact spare tire), one at a time.

4. Check that the sleep mode DTCs are NOT stored in the system. If the sleep mode DTCs are stored, increase the tire inflation pressure of all 5 tires to 44 psi (3.0 kgf/cm2, 300 kPa) and repeat steps 1 - 3.





5. Adjust the tire pressure to the specified level as indicated on the Tire and Loading Information label on the vehicle.

NOTE:

^ If there is great difference between the current temperature of the tire and wheel (for example: shop temperature) and expected temperature (for example: outdoor temperature), this needs to be considered when adjusting the tire pressure.

^ Adjust the tire pressure when the tires are cold.

^ The tire pressure must be checked COLD, meaning that the car must NOT have been driven at highway speeds for AT LEAST 3 hours.

6. Check that the Low Tire Pressure Warning Light is OFF.





7. Push and hold the Tire Pressure Warning Set Switch for 3 seconds until the Low Tire Pressure Warning Light blinks 3 times. Ensure the Low Tire Pressure Warning Light goes OFF. When the Low Tire Pressure Warning light goes OFF, it is necessary to leave the power switch in the "IG-ON" mode for 5 minutes to allow the TPWS ECU to initialize with the current tire pressure.

NOTE:

^ Do NOT turn the power switch OFF until initialization is complete. If initialization has NOT been completed, it is NOT possible to enter TPWS test mode.

^ It is necessary to wait for up to 5 minutes until initialization completes correctly.