Nissan Rogue (T33) 2021-Present Service Manual: P0182 Ftt Sensor
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| P0182 | 00 |
FTT SEN/CIRCUIT (Fuel temperature sensor ″A″ circuit low) |
Diagnosis condition | Ignition switch ON |
| Signal (terminal) | Fuel tank temperature sensor signal | |||
| Threshold | An excessively low voltage from the FTT sensor is sent to ECM. | |||
| Diagnosis delay time | — | |||
POSSIBLE CAUSE
-
Harness or connectors (FTT sensor circuit is open or shorted.)
-
Fuel tank temperature sensor
FAIL-SAFE
Not applicable
DTC Confirmation Procedure
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
>>
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE
-
Turn ignition switch ON and wait at least 5 seconds.
-
Check 1st trip DTC.
Is 1st trip DTC detected?
YES>>Proceed to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
DTC Diagnosis Procedure
CHECK FUEL TANK TEMPERATURE (FTT) SENSOR POWER SUPPLY
-
Turn ignition switch OFF.
-
Disconnect fuel level sensor unit and fuel pump harness connector.
-
Turn ignition switch ON.
-
Check the voltage between fuel level sensor unit and fuel pump harness connector and ground.
+ − Voltage
(Approx.)Fuel level sensor unit and fuel pump Connector Terminal B100 8 Ground 5 V
Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 2.
CHECK FUEL TANK TEMPERATURE (FTT) SENSOR POWER SUPPLY CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM harness connector.
-
Check the continuity between fuel level sensor unit and fuel pump harness connector and ECM harness connector.
+ − Continuity Fuel level sensor unit and fuel pump ECM Connector Terminal Connector Terminal B100 8 E21 136 Existed -
Also check harness for short to ground and to power.
Is the inspection result normal?
YES>>Perform the trouble diagnosis for power supply circuit.
NO>>Repair or replace error-detected parts.
CHECK FUEL TANK TEMPERATURE (FTT) SENSOR GROUND CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM connector.
-
Check the continuity between fuel level sensor unit and fuel pump harness connector and ECM harness connector.
+ − Continuity Fuel level sensor unit and fuel pump ECM Connector Terminal Connector Terminal B100 7 E21 155 Existed -
Also check harness for short to power.
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace error-detected parts.
CHECK FUEL TANK TEMPERATURE (FTT) SENSOR
Check the FTT sensor. Refer to Component Inspection.
Is the inspection result normal?
YES>>Check intermittent incident. Refer to Intermittent Incident.
NO>>Replace “fuel level sensor unit and fuel pump”. Refer to Exploded View.
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