Nissan Sentra. Manual - part 408

EC-328

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0461 FUEL LEVEL SENSOR

9. 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

>> Proceed to

EC-328, "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.

2. Release fuel pressure from fuel line. Refer to

EC-143, "Work Procedure"

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

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

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

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

9. Confirm that the fuel gauge indication varies.
Is the inspection result normal?

YES

>> INSPECTION END

>> Proceed to

EC-328, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009758564

CHECK COMBINATION METER FUNCTION

Refer to

MWI-17, "CONSULT Function (METER/M&A)"

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

>> Refer to

MWI-58, "Diagnosis Procedure"

P0462, P0463 FUEL LEVEL SENSOR

EC-329

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0462, P0463 FUEL LEVEL SENSOR

DTC Logic

INFOID:0000000009758565

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-350, "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

1. Turn ignition switch ON and wait at least 5 seconds.

2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-329, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758566

CHECK COMBINATION METER FUNCTION

Refer to

MWI-17, "CONSULT Function (METER/M&A)"

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

>> Proceed to

MWI-58, "Component Function Check"

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0462

FUEL LEVL SEN/CIRC
(Fuel level sensor

″A″ circuit low)

An excessively low voltage from the sen-
sor is sent to ECM.

• 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

P0463

FUEL LEVL SEN/CIRC
(Fuel level sensor

″A″ circuit high)

An excessively high voltage from the sen-
sor is sent to ECM.

EC-330

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0500 VSS

P0500 VSS

EXCEPT FOR M/T MODELS
EXCEPT FOR M/T MODELS : Description

INFOID:0000000009758567

ECM receives vehicle speed signals from two different paths via CAN communication line: One is from the

ABS actuator and electric unit (control unit) via the combination unit and the other is from TCM.

EXCEPT FOR M/T MODELS : DTC Logic

INFOID:0000000009758568

DTC DETECTION LOGIC

NOTE:

• If DTC P0500 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.

• If DTC P0500 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to

EC-

350, "DTC Logic"

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine.

2. Shift the selector lever to D range and wait at least for 2 seconds.

3. Drive the vehicle at least 10 seconds at 20 km/h (13 MPH) or more.

CAUTION:

Always drive vehicle at a safe speed.

NOTE:

This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a

road test is expected to be easier, it is unnecessary to lift the vehicle.

4. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-330, "EXCEPT FOR M/T MODELS : Diagnosis Procedure"

>> INSPECTION END

EXCEPT FOR M/T MODELS : Diagnosis Procedure

INFOID:0000000009758569

CHECK DTC WITH TCM

Check DTC with TCM. Refer to

TM-108, "CONSULT Function"

Is the inspection result normal?

YES

>> GO TO 2.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0500

VEHICLE SPEED SEN A
(Vehicle speed sensor “A”)

At 20 km/h (13 MPH), ECM detects the fol-
lowing status continuously for 5 seconds or
more: The difference between a vehicle
speed calculated by a output speed sensor
transmitted from TCM to ECM via CAN com-
munication and the vehicle speed indicated
on the combination meter exceeds 15km/h
(10 MPH).

• Harness or connector

(CAN communication line is open or
shorted.)

• Combination meter
• ABS actuator and electric unit (control

unit)

• Wheel sensor
• TCM
• Output speed sensor