Canada - Tire Monitor System - TPMS Activation/Initialization
BulletinL-TCI-3001
Issue Date
September 13, 2011
Title:
TIRE PRESSURE WARNING SYSTEM ACTIVATION AND INITIALIZATION
Service Category
General
Section
Pre-Delivery Service
Market
Canada
APPLICABILITY:
INTRODUCTION:
2012 model year LS460 vehicles are equipped with a direct-type Tire Pressure Warning System (TPWS). Each tire (including 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.
WARRANTY INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
REFERENCE:
- 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 "Check Tire Pressure System" on the multi-information display will disappear when the tire pressure warning valve/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.
"Check Tire Pressure System" is displayed on the multi-information display until all tire pressure warning valve/sensors are activated.
3. Press or remove the valve core to reduce the tire inflation pressure rapidly by 6 psi (0.4 kgf/cm2, 40kPa), or more, within 30 seconds.
NOTE
This operation is required for the system to be activated and MUST be performed for each tire (including the spare tire) one at a time.
4. Using ETAS Techstream, check for TPWS DTCs.
- NO DTCs are stored, go to step 5.
- If DTCs C2111 - C2115 are stored, repeat step 3.
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 - C2115 will be stored in the TPWS ECU.
5. Press the "DISP" switch on the steering wheel and check that the tire pressures of all 5 tires is displayed on the multi-information display.
NOTE
- The tire pressure display is NOT shown until all tire pressure warning valve/sensors are activated.
- If "Check Tire Pressure System" or "CHECKING" (which means the tire pressures are being measured) is displayed, repeat step 3. If step 3 is performed and the tire pressures are still NOT displayed, turn the tires 90 to 270 degrees.
- If the above steps are performed and the multi-information display does NOT show the tire pressures, refer to the Repair Manual.
INITIALIZATION PROCEDURE:
1. Adjust all tires (including 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. TSB2978.
- Adjust the tire pressure when the tires are cold.
2. Push the ENGINE START STOP button until the vehicle is in the "IG-ON" mode, and 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
- Make sure that the "Tire Pressure Reset Proceeding" appears on the multiinformation display. After a few seconds, the display changes to "CHECKING" (which means the tire pressures are being measured).
- It is necessary for the ignition to be in the "IG-ON" mode AT LEAST 5 minutes for initialization to complete correctly.
3. Cycle the ignition "OFF" and then to "IG-ON"
4. Check that the tire pressure for all 5 tires is displayed on the multi-information display.
If the tire pressure values are NOT displayed on the multi-information display, the initialization is NOT complete. Repeat Steps 1-4.
NOTE
- Check that the tire pressure adjusted in step 6 is displayed.
- Initialization will be completed if signals are received from all 5 tires. It takes 2 to 3 minutes to display the tire pressure data.