Dtc P0180 Fuel Temperature Sensor A Circuit

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Vd-Ftv Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (FUEL TEMPERATURE)

READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN WIRE HARNESS)

CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE FUEL TEMPERATURE SENSOR

CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)

CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM

READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN WIRE HARNESS)

REPLACE FUEL TEMPERATURE SENSOR

CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P0180 Fuel Temperature Sensor "A" Circuit

DTC P0182 Fuel Temperature Sensor "A" Circuit Low Input

DTC P0183 Fuel Temperature Sensor "A" Circuit High Input


DESCRIPTION

The fuel temperature sensor monitors the fuel temperature. The fuel temperature sensor has a thermistor that varies its resistance depending on the fuel temperature. When the fuel temperature is low, the resistance of the thermistor is high. When the temperature is high, the resistance is low. The variations of resistance are communicated to the ECM as changes of voltage (See Fig. 1).
The fuel temperature sensor is connected to the ECM. The 5 V power source voltage in the ECM is applied to the fuel temperature sensor from terminal THF via resistor R.
Resistor R and the fuel temperature sensor are connected in series. When the resistance value of the fuel temperature sensor changes due to a change of fuel temperature, the voltage at terminal THF also changes. Based on this signal, the ECM corrects the pressure control compensation of the fuel supply pump and determines if there are errors.
Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0180 Fuel Temperature Sensor A Circuit

P0180
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 0.5 seconds
Open or short in the fuel temperature sensor circuit for 0.5 seconds (1 trip detection logic).
  1. Open or short in fuel temperature sensor circuit
  2. Fuel temperature sensor
  3. ECM

P0182
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 0.5 seconds
Short in the fuel temperature sensor circuit for 0.5 seconds (1 trip detection logic).
  1. Short in fuel temperature sensor circuit
  2. Fuel temperature sensor
  3. ECM

P0183
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 0.5 seconds
Open in the fuel temperature sensor circuit for 0.5 seconds (1 trip detection logic).
  1. Open in fuel temperature sensor circuit
  2. Fuel temperature sensor
  3. ECM

Related Data List
DTC No.
Data List
P0180
Fuel Temp
P0182
P0183
HINT:
  1. If DTC P0180, P0182 and/or P0183 is stored, the following symptoms may appear:
    1. Misfire
    2. Combustion noise
    3. Black smoke
    4. Lack of power

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0180 Fuel Temperature Sensor A Circuit


INSPECTION PROCEDURE

NOTICE:
After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click here).
HINT:
  1. If DTCs relating to different systems are stored, and they share terminal E2 as their ground, check this ground circuit first.
  2. Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
1.READ VALUE USING INTELLIGENT TESTER (FUEL TEMPERATURE)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Enter the following menus: Powertrain / Engine / Data List / Fuel Temp.

  1. Read the value.

    OK:
    Same value as the actual fuel temperature.

    Result
    Result
    		Proceed to
    -40°C (-40°F)
    		A
    140°C (284°F) or more
    		B
    OK (Same as actual fuel temperature)
    		C
    HINT:
    1. If there is an open circuit, the tester indicates -40°C (-40°F).
    2. If there is a short circuit, the tester indicates 140°C (284°F) or more.


B
Go to step 6

C
Go to step 11
A


2.READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN WIRE HARNESS)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0180 Fuel Temperature Sensor A Circuit

  1. Disconnect the fuel temperature sensor connector.

  1. Connect terminals 2 (THF) and 1 (E2) of the fuel temperature sensor connector.

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Enter the following menus: Powertrain / Engine / Data List / Fuel Temp.

  1. Read the value.

    OK:
    140°C (284°F) or higher


NG
Go to step 4
OK


3.CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE FUEL TEMPERATURE SENSOR

  1. Replace the fuel temperature sensor (Click here).



NEXT
Go to step 11

4.CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0180 Fuel Temperature Sensor A Circuit

  1. Disconnect the fuel temperature sensor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    for LHD
    Tester Connection
    		Condition
    		Specified Condition
    z65-2 (THF) - C45-116 (THF)
    		Always
    		Below 1 Ω
    z65-1 (E2) - C45-75 (E2)
    		Always
    		Below 1 Ω
    for RHD
    Tester Connection
    		Condition
    		Specified Condition
    z65-2 (THF) - C46-116 (THF)
    		Always
    		Below 1 Ω
    z65-1 (E2) - C46-75 (E2)
    		Always
    		Below 1 Ω


NG
Go to step 10
OK


5.CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM

  1. Replace the ECM (Click here).



NEXT
Go to step 11

6.READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN WIRE HARNESS)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0180 Fuel Temperature Sensor A Circuit

  1. Disconnect the fuel temperature sensor connector.

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Enter the following menus: Powertrain / Engine / Data List / Fuel Temp.

  1. Read the value.

    OK:
    -40°C (-40°F)


NG
Go to step 8
OK


7.REPLACE FUEL TEMPERATURE SENSOR

  1. Replace the fuel temperature sensor (Click here).



NEXT
Go to step 11

8.CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0180 Fuel Temperature Sensor A Circuit

  1. Disconnect the fuel temperature sensor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Short):
    for LHD
    Tester Connection
    		Condition
    		Specified Condition
    z65-2 (THF) or C45-116 (THF) - Body ground
    		Always
    		10 kΩ or higher
    for RHD
    Tester Connection
    		Condition
    		Specified Condition
    z65-2 (THF) or C46-116 (THF) - Body ground
    		Always
    		10 kΩ or higher


NG
Go to step 10
OK


9.REPLACE ECM

  1. Replace the ECM (Click here).



NEXT
Go to step 11

10.REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT


11.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

  1. Turn the ignition switch to ON for 1 second.

  1. Enter the following menus: Powertrain / Engine / DTC.

  1. Confirm that the DTC is not output again.


NEXT

END