Tire Pressure Warning System Tire Pressure Warning Light Circuit

Suspension. Land Cruiser. Urj200, 202 Grj200 Vdj200
Tire Pressure Monitoring. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

CHECK DTC OUTPUT (B1247)

CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST)

TIRE PRESSURE WARNING SYSTEM - Tire Pressure Warning Light Circuit


DESCRIPTION

If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks (stays on after blinking for 1 minute) and tire pressure monitoring is canceled at the same time. At this time, the ECU stores a DTC in memory.
Connecting terminals TC and CG of the DLC3 makes the tire pressure warning light blink to output DTCs.
The tire pressure warning ECU and receiver sends the tire pressure warning light illumination request signal to the main body ECU (multiplex network body ECU) via a direct line. The main body ECU (multiplex network body ECU) then sends the signal to the combination meter assembly via CAN communication.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Tire Pressure Monitoring.Tire Pressure Warning System.Tire Pressure Warning System Tire Pressure Warning Light Circuit


INSPECTION PROCEDURE

NOTICE:
  1. When replacing the tire pressure warning ECU and receiver, read the transmitter IDs stored in the old ECU using the GTS and write them down before removal.
  2. It is necessary to perform initialization (Click here) after registration (Click here) of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.
1.CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

  1. Check if a CAN communication system DTC is output (for LHD with Central Gateway ECU: Click here, for LHD without Central Gateway ECU: Click here, for RHD with Central Gateway ECU: Click here, for RHD without Central Gateway ECU: Click here).

    Result:

    Result
    		Proceed to
    DTC is not output.
    		A
    DTC is output.
    		for LHD with Central Gateway ECU
    		B
    for LHD without Central Gateway ECU
    		C
    for RHD with Central Gateway ECU
    		D
    for RHD without Central Gateway ECU
    		E


B
GO TO CAN COMMUNICATION SYSTEM (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (Click here)

D
GO TO CAN COMMUNICATION SYSTEM (Click here)

E
GO TO CAN COMMUNICATION SYSTEM (Click here)
A


2.CHECK DTC OUTPUT (B1247)

  1. Clear the DTCs (Click here).

  1. Turn the engine switch off.

  1. Turn the engine switch on (IG).

  1. Check for DTCs (Click here).

    OK:
    DTC B1247 is not output.


NG
GO TO DTC B1247 (Click here)
OK


3.CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST)

  1. Turn the engine switch off.

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Combination Meter / Active Test.

  1. Check the condition of the tire pressure warning light by using the GTS.

    Combination Meter
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Indicat. Tire Pressure Warning System
    		Tire pressure warning light
    		ON or OFF
    		Perform the test with the vehicle stopped and engine idling.
    OK:
    The tire pressure warning light turns on or off in accordance with the GTS operation.


NG
GO TO METER / GAUGE SYSTEM (Click here)
OK

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER (Click here)