TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DESCRIPTION (2008 LX570)

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Last Modified: 11-27-2007		1.6 C
Service Category: Suspension	Section: Tire Pressure Monitoring
Model Year: 2008	Model: LX570	Doc ID: RM000000Z8102WX
Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DESCRIPTION (2008 LX570)

DTC

C2177/77

Initialization not Completed

DESCRIPTION

Initialization is necessary if one of the following occurs: 1) the ECU is replaced; 2) a tire pressure warning valve and transmitter is replaced; 3) tires with a different standard tire pressure are installed; 4) the tires are rotated; or 5) a new vehicle is delivered.

DTC Code	DTC Detection Condition	Trouble Area
C2177/77	When all conditions below are met: During initialization. The tire pressure warning valve and transmitter is not in stop mode. A signal is not received from the tire pressure warning valve and transmitter for 20 minutes or more. The vehicle speed is more than 8 km/h (5 mph) for a total of 20 minutes.	Tire pressure warning valve and transmitter Tire pressure warning antenna and receiver Tire pressure warning ECU Harness or connector

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using the Techstream and write them down before removal.

It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU after the ECU and/or the tire pressure warning valve and transmitter has been replaced.

PROCEDURE

1.	CHECK FREQUENCY RECEIVING CONDITION

(a) Check for the following conditions described below:

(1) Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.

HINT:

If the vehicle is located in areas described above, the tire pressure warning light may turn on only in a particular area.

(2) Devices using similar radio frequencies are used in the vehicle.

OK:

Facilities or devices that use similar radio frequencies are not located in or around the vehicle.

HINT:

Radio frequencies may be interrupted due to the surroundings, or devices installed by the user.

2.	PERFORM INITIALIZATION

(a) Perform initialization .

3.	CONFIRM TIRE INFLATION PRESSURE (DATA LIST)