Tire Monitor System - Activation & Initialization
L-SB-0171-08
December 22, 2008
Tire Pressure Warning System Activation & Initialization
Service Category
General
Section
Pre-Delivery Service
2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 357
Market
USA
Applicability
Introduction
The 2010 model year RX 350 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 for Japan-built vehicles by following the activation
procedure in this TSIB. NAP-built vehicles do not require activation but both Japan-built (VINs start with "J") and NAP-built (VINs start with "2")
vehicles require the TPWS to be initialized by following the initialization procedure in this TSIB.
Required Tools & Equipment
^ Additional TIS techstream units may be ordered by calling Approved Dealer Equipment (ADE).
^ The Lexus Diagnostic Tester and CAN Interface Module may also be used to perform the service procedures listed in this bulletin.
Warranty Information
Reference
2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 358
^ 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 below 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
ONLY perform the following activation procedure on Japan-built vehicles.
1. Connect TIS 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/sq.cm, 40 kPa), or more, within 30 seconds.
If the tire inflation pressure is NOT reduced by 6 psi (0.4 kgf/sq.cm, 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 TIS techstream, check for TPWS DTCs.
^ If 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.
NOTE
Perform the following initialization procedure for BOTH NAP-built and Japan-built vehicles.
2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 359
1. Cycle the ignition switch to the "IG-ON" mode and connect TIS 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 (L-SB-0154-08).
NAP-built:
Remove the ID number labels that are attached to each wheel and place the labels in the glove box.
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.
4. Cycle the ignition switch to the "OFF" position and then to the "IG-ON" position.
It is necessary for the ignition to be in the "IG-ON" mode at LEAST 5 minutes for initialization to complete correctly.
5. Check the tire pressure values of all the tires using TIS techstream.
NOTE
^ It can take 2 - 3 minutes for the tire pressure values to be displayed on the TIS techstream Data List.
^ If the tire pressure values CANNOT be displayed on the TIS techstream screen, the initialization is NOT completed. Repeat steps 2 - 4.
No comments:
Post a Comment