Canada - Tire Monitoring System - TPMS Activation
BulletinTSB2730
Issue Date
October 6, 2009
Title
TIRE PRESSURE WARNING SYSTEM ACTIVATION AND INITIALIZATION
Component
GENERAL INFORMATION
Models
'10 GS350; GS460; GS450h
INTRODUCTION:
2010 model year GS350; GS460; GS450h 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 that measures tire pressure. 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 bulletin.
APPLICABILITY:
WARRANTY INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
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 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 flashes for 1 minute and then remains illuminated
3. Check that the "MAIN/2nd" Switch is in the UP position (system is in "MAIN" mode).
4. 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.
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.
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 4.
HINT
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 and DTCs C2111 - C2114 will be stored in the TPWS ECU.
NOTE
If DTCs C2111 - C2114 are present after repeating step 4, lift the vehicle and turn each tire 90 to 270 degrees. Then repeat step 4.
INITIALIZATION PROCEDURE:
1. 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.
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.
- Adjust the tire pressure when the tires are cold.
2. 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 "IGON" mode AT LEAST 5 minutes for initialization to complete correctly.
3. Cycle the ignition "OFF" and then to "IG-ON"
4. Check the tire pressure values of all the tires using ETAS Techstream.
TPWS ECU/Data List/ TIREPRESS 1-4
NOTE
It can take 2 - 3 minutes for the tire pressure values to be displayed on the ETAS Techstream Data List.