Canada - Tire Monitoring System - TPMS Activation
BulletinTSB2671
Issue Date
June 23, 2009
Title
TIRE PRESSURE WARNING SYSTEM ACTIVATION & INITIALIZATION
Component
GENERAL INFORMATION
Models
2010 RX450h
INTRODUCTION:
The 2010 model year RX450h is equipped with a direct-type Tire Pressure Warning System (TPWS). Each tire (except the spare tire) has a tire pressure warning valve/sensor that measures tire pressure data. The data is transmitted to the Tire Pressure Warning System antenna/receiver and then to the Tire Pressure Warning System ECU.
During Pre-Delivery Service (PDS), the tire pressure warning valves/sensors must be activated and the system must be initialized according to the procedure in this TSB.
APPLICABILITY:
WARRANTY INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
REFERENCE:
- After cycling the ignition to the "IG-ON" position, the Low Tire Pressure Warning Light will blink until all the tire pressure warning valves/sensors are activated.
- The Diagnostic Trouble Codes (DTCs) listed may be stored in the TPWS ECU until the tire pressure warning valves/sensors are activated.
- The DTCs will automatically clear when the 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.
3. Press or remove the valve core to reduce the tire inflation pressure rapidly by 6 psi (0.4 kgf/cm 2 ,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 (except the spare tire) one at a time.
4. Check that the Low Tire Pressure Warning Light goes OFF after all the tire pressure warning valves/sensors are activated.
5. Using ETAS Techstream, check for TPWS DTCs.
- NO DTCs are stored, go to step 1 of the Initialization Procedure.
- If DTCs C2111 - C2114 are stored, repeat step 3.
- If any other DTCs are stored, refer to the Repair Manual.
INITIALIZATION PROCEDURE:
1. Cycle the ignition switch to the "IG-ON" mode and connect ETAS Techstream.
2. Adjust all tires (except 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 and confirm that the Low Tire Pressure Warning Light is OFF.
NOTE
To adjust tire pressure correctly when outside temperature is significantly colder or warmer than shop temperature, please reference the Tire Inflation Pressure Compensation and Adjustment Service Bulletin. TSB 0642.
3. 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 the "IG-ON" mode at LEAST 5 minutes for initialization to complete correctly.
4. Cycle the ignition switch to the "OFF" position and then to the "IG-ON" position.
5. Check the tire pressure values of all the tires using ETAS Techstream.
NOTE
- It can take 2 - 3 minutes for the tire pressure values to be displayed on the ETAS Techstream Data List.
- If the tire pressure values CANNOT be displayed on the ETAS Techstream screen, the initialization is NOT completed.
Repeat steps 2 - 4.