Tire Pressure Warning Valve/Sensor Activation (PD064-06)

TIRE PRESSURE WARNING VALVE/SENSOR ACTIVATION

TECHNICAL SERVICE BULLETIN

Introduction

2007 model year SC 430 vehicles are equipped with a direct-type Tire Pressure Warning System (TPWS). Each 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.

Applicable Vehicles

• 2007  model year SC 430  vehicles.

Required SSTs

ITEM NO.	SPECIAL SERVICE TOOLS (SSTs)		PART NUMBER	QTY	DRW(2)
1	Lexus Diagnostic Tester Kit (1)  NOTE: All components from this kit/set are required. 12 Megabyte Diagnostic Tester Program Card (P/N 01002593-005) with version 13.4a Software (or later) is required.	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	LEX220036	1	8
2	CAN Interface Module Kit (1)  NOTE: All components from this kit/set are required.	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	01002744	1	8
(1) Essential SSTs. (2) Refers to drawer number in SST Storage System.

Warranty Information

OP CODE	DESCRIPTION	TIME	OFP	T1	T2
N/A	Not Applicable to Warranty	-	-	-	-

Reference

• 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.
  Fig 1: Identifying Low Tire Pressure Warning Light

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DTC NO. (1)	DTC NO. (2)	DTC EXPLANATION
11	C2111	Transmitter ID1 Operation Stop (sleep mode)
12	C2112	Transmitter ID2 Operation Stop (sleep mode)
13	C2113	Transmitter ID3 Operation Stop (sleep mode)
14	C2114	Transmitter ID4 Operation Stop (sleep mode)
(1) DTC No. indicated by blinking of the Low Tire Pressure Warning Light. (2) DTC No. indicated on the Lexus Diagnostic Tester.

Activation Procedure

1. Connect the Diagnostic Tester.
2. Set the tire select switch to the "Main" (outer) position.
   Fig 2: Identifying Tire Select Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Turn the ignition switch to the "ON" position and check that the Low Tire Pressure Warning Light comes ON.
   Fig 3: Identifying Low Tire Pressure Warning Light

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Press or remove the valve core to reduce the tire inflation pressure rapidly by 2.9 psi (0.2 kgf/cm² , 20 kPa), or more, within 15 seconds.

   If the tire inflation pressure is NOT reduced by 2.9 psi (0.2 kgf/cm² , 20 kPa), or more, within 15 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, one at a time.
   Fig 4: Identifying Valve Core

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Using the Diagnostic Tester, check for TPWS DTCs.
   • If NO DTCs are stored, go to step 6.
   • If DTCs C2111 - C2114 are stored, repeat step  4.
   • If any other DTCs are stored, refer to the Repair Manual.
6. Adjust the tire inflation pressure.

   Tire inflation pressure: 

   33 psi (2.3 kgf/cm ²  , 230 kPa) 

   NOTE:

   • If the tire inflation pressure is lower than 26 psi (1.8 kgf/cm² , 180 kPa), the Low Tire Pressure Warning Light comes ON as a low pressure warning.
   • If there is great difference between the current temperature of the tire and wheel (for example: shop temperature) and expected temperature (for example: outdoor temperature), this needs to be considered when adjusting the tire pressure.
   • Adjust the tire pressure when the tires are cold.
     Fig 5: Adjusting Tire Pressure

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002