Canada - Tire Monitor System - Activation And Initialization

Bulletin
2895

Issue Date
September 18, 2007

Market
Canada

Title:
TIRE PRESSURE WARNING VALVE/SENSOR ACTIVATION

Component
GENERAL INFORMATION

Models
'08 - '09 Prius

INTRODUCTION:
The 2008-2009 model year Prius is equipped with a direct-type Tire Pressure Warning System (TPWS). Each tire has a tire pressure warning valve/sensor, and the measured tire pressure data is transmitted to the Tire Pressure Warning System antenna/receiver to the Tire Pressure Warning System ECU.

During Pre-Delivery Service (PDS), the tire pressure warning valves/sensors must be activated according to the procedure in this bulletin.

APPLICABLE VEHICLES:
- 2008-2009 model year Prius vehicles.







REQUIRED SSTs:







WARRANTY INFORMATION:

REFERENCE:











- The Low Pressure Warning Light will blink until all the tire pressure warning valves/sensors are activated.
- The Diagnostic Trouble Codes listed below may be stored in the TPWS ECU until the tire pressure warning valves/sensors are activated.
- The DTCs will automatically clear when tire pressure warning valves/sensors are activated.

ACTIVATION PROCEDURE:







1. Connect the Diagnostic Tester.
2. Turn the Power switch to the "IG-ON" position and check that the Low Pressure Warning Light blinks







3. Press or remove the valve core to reduce the tire inflation pressure rapidly by 6 psi (0.4kgf/cm2, 40kPa), or more, within 30 seconds.

If the tire inflation pressure is NOT reduced by 6psi (0.4kgf/cm2, 40kPa), or more, within 30 seconds, the tire pressure warning valves/sensors will NOT be activated.

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

4. Using the Diagnostic Tester, check for TPWS DTCs.
- If NO DTCs are stored, go to step 5.
- If DTCs C2111 - C2114 are stored, repeat step 3.
- If any other DTCs are stored, refer to the Repair Manual.







5. Adjust all tires to the standard tire inflation pressure, as indicated on the Tire and Loading Information label located inside the driver's door jam and confirm that the Low Tire Pressure Warning Light is OFF.







6. Push and hold the Tire Pressure Warning "SET" Switch for 3 seconds until the Low Tire Pressure Warning Light blinks 3 times and then turns OFF to set the tire pressure initialization.

NOTE:
It is necessary for the ignition to be in "IG-ON" mode a maximum of 5 minutes for initialization to complete correctly.