Canada - Tire Monitor System - Activation Procedure

Bulletin
TSB3333

Issue Date
December 4, 2009

Market
Canada

Title
TIRE PRESSURE WARNING SYSTEM ACTIVATION

Component
GENERAL INFORMATION

Models
'10 4Runner

INTRODUCTION:
2010 model year 4Runner vehicles are equipped with a direct-type Tire Pressure Warning System (TPWS). Each tire (except the spare 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.






APPLICABILITY:






WARRANTY INFORMATION:






REQUIRED SSTs:

NOTE:
Additional Techstream units may be ordered by completing the order form on ETAS and faxing it to (416) 431-8342.

REFERENCE:







- After cycling the ignition to the "IG-ON" position, the Low Tire Pressure Warning Light will blink for 1 minute and then remain illuminated until all the tire pressure warning valves/sensors are activated.







- The Diagnostic Trouble Codes (DTCs) listed are 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 ETAS Techstream.







2. Cycle the ignition switch to the "IG-ON" position and check that the Low Tire Pressure Warning Light blinks for 1 minute and then remains illuminated.







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 6 psi (0.4 kgf/cm2, 40 kPa), 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, (excluding the compact spare tire), one at a time.

4. Using ETAS Techstream, 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 (excluding the spare tire) to the standard tire inflation pressure, as indicated on the Tire and Loading Information label located inside the driver's door jamb.

NOTE:
- To adjust tire pressure correctly when outside temperature is significantly colder or warmer than shop temperature. Follow the procedures outlined in the Tire Inflation Pressure Compensation and Adjustment service bulletin. (TSB1317)
- Adjust the tire pressure when the tires are cold.

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