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 CAN COMMUNICATION LINE

CHECK TIRE PRESSURE WARNING LIGHT CONDITION

PERFORM INSPECTION CHECK NECESSARY FOR SYMPTOM

CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST)

CHECK IF TIRE PRESSURE WARNING ECU AND RECEIVER CONNECTOR IS SECURELY CONNECTED

CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER - BATTERY AND BODY GROUND)

TIRE PRESSURE WARNING SYSTEM - Tire Pressure Warning Light Circuit


DESCRIPTION

If the ECU detects trouble, the tire pressure warning light blinks (illuminates after blinking for 1 minute) and tire pressure monitoring is canceled at the same time. At this time, the ECU stores a DTC in the memory.
Connect terminals TC and CG of the DLC3 to make the tire pressure warning light blink and output the DTC.

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 CAN COMMUNICATION LINE

  1. Turn the engine switch off.

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG) and turn the GTS on.

  1. Enter the following menus: "CAN Bus Check" from the "System Select" screen.

  1. Check the CAN communication system (for LHD: Click here, for RHD: Click here).

    OK:
    The CAN communication system is normal.
    Result:
    Result
    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


B
GO TO CAN COMMUNICATION SYSTEM (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (Click here)
A


2.CHECK TIRE PRESSURE WARNING LIGHT CONDITION

  1. Check for tire pressure warning light condition.

    Result:

    Result
    		Proceed to
    Tire pressure warning light does not illuminate despite tire pressure decreasing
    		A
    Tire pressure warning light remains illuminated (goes off during initial check)
    		B
    Tire pressure warning light remains illuminated (illuminates during initial check)
    		C


B
Go to step 5

C
GO TO PROBLEM SYMPTOMS TABLE (Click here)
A


3.PERFORM INSPECTION CHECK NECESSARY FOR SYMPTOM
NOTICE:
If the following checks in the Suspected Area column of the Problem Symptoms Table have not been performed, make sure to perform the following checks before proceeding (Click here).
If the items below are normal, proceed to the next step.
  1. Initialization
  2. Check Data List (ID Tire Inflation Pressure)
  3. ID code check (Registration)

NEXT


4.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) and 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 operating the GTS.

    Combination Meter
    Tester Display
    		Test Part
    		Control Range
    Indicat. Tire Pressure Warning System
    		Tire Pressure Warning Light
    		OFF or ON
    OK:
    The warning light turns on when operating the GTS.


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

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER (Click here)

5.CHECK IF TIRE PRESSURE WARNING ECU AND RECEIVER CONNECTOR IS SECURELY CONNECTED

  1. Check if the tire pressure warning ECU and receiver connector is securely connected.

    OK:
    The connector is securely connected.


NG
CONNECT CONNECTOR TO TIRE PRESSURE WARNING ECU AND RECEIVER CORRECTLY
OK


6.CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER - BATTERY AND BODY GROUND)


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

  1. Disconnect the tire pressure warning ECU and receiver L60 connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    L60-1 (IG1) - Body ground
    		Engine switch on (IG)
    		10 to 16 V
    Engine switch off
    		Below 1 V

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L60-4 (GN1) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Tire Pressure Warning ECU and Receiver)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER (Click here)