P0181

F : DTC P0181. FUEL TEMPERATURE SENSOR

G92429t35 : CHECK CONTINUITY OF THE FUEL TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn the ignition switch to the OFF position.
2. Disconnect the fuel temperature sensor electrical connector IJ8.
3. Disconnect the ECM electrical connector EN16.
4. Measure the resistance between the fuel temperature sensor electrical connector IJ8, pin 2 (WU) and the ECM electrical connector EN16, pin 50 (WU).

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.

G92429t36 : CHECK THE FUEL TEMPERATURE SENSOR GROUND CIRCUIT
1. Measure the resistance between the fuel temperature sensor electrical connector IJ8 pin 1 (NU) and GROUND.

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.

G92429t37 : CHECK THE FUEL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between the fuel temperature sensor electrical connector IJ8 pin 2 (WU) and GROUND.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short to GROUND. CLEAR the DTCs. TEST the system for normal operation.

-> No

G92429t155 : CHECK THE FUEL TEMPERATURE SENSOR GROUND CIRCUIT FOR A SHORT TO BATTERY
1. Disconnect the FTP sensor electrical connector, FT1.
2. Turn the ignition switch to the ON position.
3. Check for a voltage between FT1, pin 3 (BG) and GROUND.

- Is the voltage greater than 1 volt?

-> Yes
REPAIR the short to battery. CLEAR the DTCs. TEST the system for normal operation.

-> No

G92429t38 : CHECK THE FUEL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO BATTERY
1. Connect the ECM electrical connector EN16.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between the fuel temperature sensor electrical connector IJ8, pin 2 (WU) and GROUND.

- Is the voltage greater than 10 volts?

-> Yes
REPAIR the short to battery. CLEAR the DTCs. TEST the system for normal operation.

-> No
INSTALL a new fuel temperature sensor. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. Before replacing an ECM, contact dealer technical support.