TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2165/65-C2169/69; Abnormal Temperature Inside ID1 Tire; 2006 MY LX470 [05/2005

Last Modified: 4-30-2014	6.6 C	Doc ID: RM0000018LA001X
Model Year: 2006	Model: LX470	Prod Date Range: [05/2005 - ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2165/65-C2169/69; Abnormal Temperature Inside ID1 Tire; 2006 MY LX470 [05/2005 - ]

DTC

C2165/65

Abnormal Temperature Inside ID1 Tire

DTC

C2166/66

Abnormal Temperature Inside ID2 Tire

DTC

C2167/67

Abnormal Temperature Inside ID3 Tire

DTC

C2168/68

Abnormal Temperature Inside ID4 Tire

DTC

C2169/69

Abnormal Temperature Inside ID5 Tire

DESCRIPTION

The tire pressure monitor valve sub-assembly measures tire internal temperature as well as tire pressure, and transmits the information to the tire pressure monitor receiver along with the transmitter ID. If the measured temperature is out of the specified range, the tire pressure monitor ECU recognizes it as a malfunction, outputs DTCs, and blinks the tire pressure warning light.

DTC No.

DTC Detecting Condition

Trouble Area

C2165/65

C2166/66

C2167/67

C2168/68

C2169/69

The temperature inside the tire is outside the range -40 to 215°C (-40 to 419°F).

Tire pressure monitor valve sub-assembly
Tire pressure monitor ECU

HINT:

It is necessary to perform the procedure to identify the tire pressure monitor valve sub-assembly that is malfunctioning because it cannot be identified by the output DTC.

INSPECTION PROCEDURE

NOTICE:

It is necessary to register an ID code after replacing the tire pressure monitor valve sub-assembly and/or the tire pressure monitor ECU .

HINT:

Set the tire pressure to the specified value.

PROCEDURE

1.	CHECK TIRE PRESSURE WARNING LIGHT

(a) Check the tire pressure warning light.

Result

Condition	Proceed to
Does not blink	A
Comes on and goes off repeatedly at 0.5 second intervals	B

GO TO STEP 7

2.	IDENTIFY TRANSMITTER CORRESPONDING TO DTC*1

(a) Identify transmitter corresponding to DTC .

3.	CHECK TIRES

(a) Check that the tire is not punctured, and there is no indication of air pressure drop.

OK:

Tire is normal.

REPLACE TIRE

4.	ADJUST TIRE PRESSURE TO SPECIFIED VALUE

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
200 kPa (2.0 kgf/cm ² , 29 psi)	220 kPa (2.2 kgf/cm ² , 32 psi)	220 kPa (2.2 kgf/cm ² , 32 psi)	240 kPa (2.4 kgf/cm ² , 35 psi)	220 kPa (2.2 kgf/cm ² , 32 psi)	240 kPa (2.4 kgf/cm ² , 35 psi)

CLEAR DTC

(a) Clear the DTC .

CHECK DTC

(a) Check for DTC .

OK:

DTC is not output.

HINT:

If the result is OK, replace the tire pressure monitor valve sub-assembly specified in step *1.
Register the transmitter ID after replacement, and then set the tire pressure to the specified value.

REPLACE TIRE PRESSURE MONITOR ECU

REPLACE TIRE PRESSURE MONITOR VALVE SUB-ASSEMBLY

7.	IDENTIFY TRANSMITTER CORRESPONDING TO DTC

(a) Identify transmitter corresponding to DTC .

8.	CHECK TIRES

(a) Check that the tire is not punctured, and there is no indication of air pressure drop.

OK:

Tire is normal.

REPLACE TIRE

9.	REPLACE TIRE PRESSURE MONITOR VALVE SUB-ASSEMBLY

(a) Replace the identified tire pressure monitor valve sub-assembly with a new one .

10.	ADJUST TIRE PRESSURE TO SPECIFIED VALUE

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
200 kPa (2.0 kgf/cm ² , 29 psi)	220 kPa (2.2 kgf/cm ² , 32 psi)	220 kPa (2.2 kgf/cm ² , 32 psi)	240 kPa (2.4 kgf/cm ² , 35 psi)	220 kPa (2.2 kgf/cm ² , 32 psi)	240 kPa (2.4 kgf/cm ² , 35 psi)

11.	REGISTRATION OF TRANSMITTER ID

(a) Register the transmitter ID for all wheels .

(b) Set the tire pressure to the specified value.

12.

CHECK DTC

(a) Check for DTC .

OK:

DTC is not output.

REPLACE TIRE PRESSURE MONITOR ECU

END