Dtc P0180 Fuel Temperature Sensor A Circuit. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 1Ad-Ftv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (FUEL TEMPERATURE SENSOR)

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

CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)

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

CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)

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 (see below). The 5 V power source voltage in the ECM is applied to the fuel temperature sensor from terminal THF via resistor R.
The resistor R and 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 supply pump and determines errors.
COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0180 Fuel Temperature Sensor A Circuit

DTC No.
DTC Detection Condition
Trouble Area
P0180
Open or short in 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
Short in 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
P0183
Open in 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

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0180 Fuel Temperature Sensor A Circuit


INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:
After replacing the ECM, the new ECM needs registration (See page Нажмите здесь) and initialization (See page Нажмите здесь).
УКАЗАНИЕ:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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 SENSOR)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG) and turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Temperature.

  1. Read the value.

    Standard value:
    Same value as the actual fuel temperature

    Result:

    Result
    		Proceed to
    Temperature displayed: -40°C (-40°F)
    		A
    Temperature displayed: 140°C (284°F) or more
    		B
    Temperature displayed: OK (Same as actual fuel temperature)
    		C
    УКАЗАНИЕ:
    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
Перейдите к шагу 4

C
CHECK FOR INTERMITTENT PROBLEMS (Нажмите здесь)
A


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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0180 Fuel Temperature Sensor A Circuit

  1. Disconnect the fuel temperature sensor connector.

  1. Connect terminals 1 and 2 of the fuel temperature sensor wire harness side connector.

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG) and turn the tester on.

  1. Enter the following menu: Powertrain / Engine and ECT / Data List / Fuel Temperature.

  1. Read the value.

    Standard value:
    140°C (284°F) or more

  1. Reconnect the fuel temperature sensor connector.



NG
Перейдите к шагу 3
OK

CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE SUPPLY PUMP ASSEMBLY (FUEL TEMPERATURE SENSOR) (Нажмите здесь)

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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. 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:
    Tester Connection
    		Condition
    		Specified Condition
    B38-2 - B31-112 (THF)
    		Always
    		Below 1 Ω
    B38-1 - B31-89 (ETHF)
    		Always
    		Below 1 Ω

  1. Reconnect the fuel temperature sensor.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)
OK

CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM (Нажмите здесь)

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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. 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 on (IG) and turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Temperature.

  1. Read the value.

    Standard value:
    -40°C (-40°F) or more

  1. Reconnect the fuel temperature sensor connector.



NG
Перейдите к шагу 5
OK

REPLACE SUPPLY PUMP ASSEMBLY (FUEL TEMPERATURE SENSOR) (Нажмите здесь)

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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. 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:
    Tester Connection
    		Condition
    		Specified Condition
    B38-2 or B31-112 (THF) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the fuel temperature sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)
OK

REPLACE ECM (Нажмите здесь)