Nissan Frontier D22. Manual - part 285

DTC P0181 FTT SENSOR

EC-243

[KA24DE]

C

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EC

5. 

CHECK FUEL TANK TEMPERATURE SENSOR

Refer to 

EC-243, "Component Inspection"

OK or NG

OK

>> GO TO 6.

NG

>> Replace fuel tank temperature sensor.

6. 

CHECK INTERMITTENT INCIDENT

Perform 

EC-120, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

Component Inspection

UBS00D5F

FUEL TANK TEMPERATURE SENSOR

1.

Remove fuel level sensor unit.

2.

Check resistance by heating with hot water or heat gun as
shown in the figure.

Removal and Installation

UBS00D5G

FUEL TANK TEMPERATURE SENSOR

Refer to 

FL-6, "FUEL LEVEL SENSOR UNIT AND FUEL PUMP ASSEMBLY"

 .

SEF334VA

Temperature 

°C (°F)

Resistance k

Ω

20 (68)

2.3 -2.7

50 (122)

0.79 - 0.90

SEF852Z

EC-244

[KA24DE]

DTC P0182, P0183 FTT SENSOR

DTC P0182, P0183 FTT SENSOR

PFP:22630

Component Description

UBS00D5H

The fuel tank temperature sensor is used to detect the fuel tempera-
ture inside the fuel tank. The sensor modifies a voltage signal from
the ECM. The modified signal returns to the ECM as the fuel temper-
ature input. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.

<Reference data>

*: These data are reference values and are measured between ECM terminal 60
(Fuel tank temperature sensor) and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output
voltage. Doing so may result in damage to the ECM's transistor.
Use a ground other than ECM terminals, such as the ground.

On Board Diagnosis Logic

UBS00D5I

DTC Confirmation Procedure

UBS00D5J

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.

 WITH CONSULT-II

1.

Turn ignition switch ON. 

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Wait at least 10 seconds.

4.

If 1st trip DTC is detected, go to 

EC-246, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II”.

SEF334VA

Fluid temperature

°C (°F)

Voltage*

V

Resistance

k

Ω

20 (68)

3.5

2.3 - 2.7

50 (122)

2.2

0.79 - 0.90

SEF012P

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0182

Fuel tank temperature 
sensor circuit low input

An excessively low voltage from the sensor is 
sent to ECM.

●

Harness or connectors
(The sensor circuit is open or shorted.)

●

Fuel tank temperature sensor

P0183

Fuel tank temperature 
sensor circuit high input

An excessively high voltage from the sensor is 
sent to ECM.

SEF174Y

DTC P0182, P0183 FTT SENSOR

EC-245

[KA24DE]

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EC

Wiring Diagram

UBS00D5K

BBWA1059E

EC-246

[KA24DE]

DTC P0182, P0183 FTT SENSOR

Diagnostic Procedure

UBS00D5L

1. 

CHECK POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect fuel level sensor unit and fuel pump harness con-
nector.

3.

Turn ignition switch ON.

4.

Check voltage between terminal 2 and ground with CONSULT-II
or tester.

OK or NG

OK

>>  GO TO 3.

NG

>> GO TO 2.

2. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors C1, M67

●

Harness connectors M81, F36

●

Harness for open or short between ECM and fuel tank temperature sensor

>> Repair harness or connector.

3. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check harness continuity between terminal 4 and body ground.
Refer to Wiring Diagram.

3.

Also check harness for short to power.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors C1, M67

●

Harness for open or short between ECM and body ground

>> Repair open circuit or short to power in harness or connectors.

SEF334VA

Voltage

: Approximately 5V

SEF850Z

Continuity should exist.