Last Modified: 4-30-2014 6.6 L Doc ID: RM0000018KW001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: PRECAUTION; 2006 MY LX470 [05/2005 -        ]

PRECAUTION

NOTICE:

When disconnecting the cable from the negative (-) battery terminal, initialize the following system after the cable is reconnected.

System Name

See Procedure

Variable Gear Ratio Steering System

2006 MY LX470 [05/2005 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

Meter / Gauge System

1. TIRE PRESSURE WARNING SYSTEM PRECAUTION

(a) When the tire pressure warning light comes on, immediately check the tire pressure of the tire and adjust it to the specified value. (The tire pressure warning light will come on if there is an open in the tire pressure warning light circuit.)

NOTICE:

Check the spare tire as well since this system monitors the pressure of all tires.

Standard pressure

Front

Rear

Spare

200 kPa (2.0 kgf/cm 2 , 29 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

(b) When the tire pressure warning light blinks, there is a malfunction in the system. Check for DTCs.

(c) Changing the tire pressure warning switch between "MAIN" and "2nd" allows registration of 2 transmitter ID sets. Check the tire pressure warning switch to see whether the tire is registered in "MAIN" or "2nd". If the vehicle is driven without selecting the switch state correctly, the tire pressure monitor ECU determines the system is malfunctioning and causes the tire pressure warning light to blink.

(d) It is necessary to register the transmitter ID in the tire pressure monitor ECU after replacing the tire pressure monitor valve sub-assembly and/or tire pressure monitor ECU 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: REGISTRATION .

(e) When replacing the tire pressure monitor ECU:

(1) Using the DATA LIST, read the transmitter IDs registered in the ECU and make a note of them before removing the tire pressure monitor ECU.

(2) Register the transmitter IDs after installing a new tire pressure monitor ECU.

(f) When replacing the tire pressure monitor valve sub-assembly;

(1) Take a note of the 7 digit number (transmitter ID) written on the tire pressure monitor valve sub-assembly when replacing it. Register the transmitter IDs in the tire pressure monitor ECU after replacing the tire pressure monitor valve sub-assembly and installing the tires and wheels on the vehicle.

NOTICE:

The transmitter ID written on the tire pressure monitor valve sub-assembly will be unable to be read after installing it on the tire and wheel.

2. IN CASE OF TIRE AND WHEEL REPLACEMENT

(a) When tires and wheels are replaced, always be sure to register the transmitter ID correctly.

3. IN CASE OF TIRE ROTATION, IN CASE OF REPLACEMENT OF TIRE PRESSURE MONITOR ECU, TIRE PRESSURE VALVE SUB-ASSEMBLY, OR TIRE(S) WITH DIFFERENT TIRE PRESSURE

(a) Initialize the tire pressure warning system after any one of the following is performed:

  • Replacing the tire pressure monitor ECU or a tire pressure monitor valve sub-assembly
  • Tire rotation
  • Replacing tire(s) with tire of different pressure

HINT:

The tire pressure warning system will not operate properly if it is not initialized 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: INITIALIZATION .

4. FAIL-SAFE FUNCTION

(a) When a system malfunction occurs in the tire pressure warning system, the tire pressure warning light blinks and informs the driver of the system failure.

(b) The result of this diagnosis is stored in the tire pressure monitor ECU.