Content .. 351 352 353 354 ..

Nissan Cube. Manual - part 353

EC-298

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

P0461 FUEL LEVEL SENSOR

P0461 FUEL LEVEL SENSOR

Description

INFOID:0000000009947407

The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combina-
tion meter sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output volt-
age changes depending on the movement of the fuel mechanical float.

DTC Logic

INFOID:0000000009947408

DTC DETECTION LOGIC

NOTE:
• If DTC P0461 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P0461 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer

EC-314, "DTC Logic"

Driving long distances naturally affect fuel gauge level.
This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has
been driven.

DTC CONFIRMATION PROCEDURE

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to

EC-298, "Component Function Check"

Use component function check to check the overall function of the fuel level sensor function. During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?

YES

>> INSPECTION END

>> Go to

EC-299, "Diagnosis Procedure"

Component Function Check

INFOID:0000000009947409

PRECONDITIONING

WARNING:

When performing following procedure, be sure to observe the handling of the fuel. Refer to

FL-2,

"General Precautions"

TESTING CONDITION:
Before starting component function check, preparation of draining fuel and refilling fuel is required.

Do you have CONSULT?

YES

>> GO TO 2.

>> GO TO 3.

PERFORM COMPONENT FUNCTION CHECK

With CONSULT

NOTE:
Start from step 10, if it is possible to confirm that the fuel cannot be drained by 30 (7-7/8 US gal, 6-5/
8 Imp gal) in advance.
1.

Prepare a fuel container and a spare hose.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0461

Fuel level sensor circuit
range/performance

The output signal of the fuel level sensor does
not change within the specified range even
though the vehicle has been driven a long dis-
tance.

• Harness or connectors

(The CAN communication line is open or
shorted)

• Harness or connectors

(The sensor circuit is open or shorted)

• Combination meter
• Fuel level sensor

P0461 FUEL LEVEL SENSOR

EC-299

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

Release fuel pressure from fuel line, refer to

EC-478, "Inspection"

Remove the fuel feed hose on the fuel level sensor unit.

Connect a spare fuel hose where the fuel feed hose was removed.

Turn ignition switch OFF and wait at least 10 seconds then turn ON.

Select “FUEL LEVEL SE” in “DATA MONITOR” mode with CONSULT.

Check “FUEL LEVEL SE” output voltage and note it.

Select “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT.

Touch “ON” and drain fuel approximately 30 (7-7/8 US gal, 6-5/8 Imp gal) and stop it.

10. Check “FUEL LEVEL SE” output voltage and note it.
11. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
12. Check “FUEL LEVEL SE” output voltage and note it.
13. Confirm whether the voltage changes more than 0.03 V during step 7 to 10 and 10 to 12.

Is the inspection result normal?

YES

>> INSPECTION END

>> Go to

EC-299, "Diagnosis Procedure"

PERFORM COMPONENT FUNCTION CHECK

Without CONSULT

NOTE:
Start from step 8, if it is possible to confirm that the fuel cannot be drained by 30 (7-7/8 US gal, 6-5/8
Imp gal) in advance.
1.

Prepare a fuel container and a spare hose.

Release fuel pressure from fuel line. Refer to

EC-478, "Inspection"

Remove the fuel feed hose on the fuel level sensor unit.

Connect a spare fuel hose where the fuel feed hose was removed.

Turn ignition switch ON.

Drain fuel by 30 (7-7/8 US gal, 6-5/8 Imp gal) from the fuel tank using proper equipment.

Confirm that the fuel gauge indication varies.

Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).

Confirm that the fuel gauge indication varies.

Is the inspection result normal?

YES

>> INSPECTION END

>> Go to

EC-299, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009947410

CHECK COMBINATION METER FUNCTION

Refer to

MWI-30, "CONSULT Function (METER/M&A)"

Is the inspection result normal?

YES

>> GO TO 2.

>> Refer to

MWI-42, "Component Function Check"

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

>> INSPECTION END

EC-300

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

P0462, P0463 FUEL LEVEL SENSOR

P0462, P0463 FUEL LEVEL SENSOR

Description

INFOID:0000000009947411

DTC Logic

INFOID:0000000009947412

DTC DETECTION LOGIC

NOTE:
• If DTC P0462 or P0463 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC

UXXXX.

• If DTC P0462 or P0463 is displayed with DTC P0607, first perform the trouble diagnosis for DTC

P0607. Refer to

EC-314, "DTC Logic"

This diagnosis indicates the former, to detect open or short circuit malfunction.

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 11 V and 16 V at
ignition switch ON.

>> 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

>> Go to

EC-300, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009947413

CHECK COMBINATION METER FUNCTION