2014 NISSAN TEANA Service Manual

fuel cap release lock gas mileage service indicator dimensions reset sun roof

Page 1377 of 4801

NISSAN TEANA 2014 Service Manual
P0461 FUEL LEVEL SENSOREC-377
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
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K L
M A
EC
NP
O
P0461 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462298
DTC DETECTION LOGIC
NOTE:
• If DTC P0461

P0461 FUEL LEVEL SENSOREC-377
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
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M A
EC
NP
O
P0461 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462298
DTC DETECTION LOGIC
NOTE:
• If DTC P0461 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P0461 is displayed with DT C P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-404, "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
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-377, "Component Function Check"
.
Use component function check to check the overall func tion 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
NO >> Proceed to EC-378, "Diagnosis Procedure"
.
Component Function CheckINFOID:0000000009462299
1.PRECONDITIONING
WARNING:
When performing following procedure, be sure to observe the handling of the fuel. Refer to FL-2,
"General Precaution".
TESTING CONDITION:
Before starting component function check, preparation of draining fuel and refilling fuel is required.
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 3.
2.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.
2. Release fuel pressure from fuel line, refer to EC-182, "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 OFF and wait at least 10 seconds then turn ON.
6. Select “FUEL LEVEL SE” in “DATA MONI TOR” mode of “ENGINE” using CONSULT.
7. Check “FUEL LEVEL SE” output voltage and note it.
8. Select “FUEL PUMP RELAY” in “ACTIV E TEST” mode of “ENGINE” using CONSULT.
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0461 FUEL LEVEL SENSOR
(Fuel level sensor ″A ″ 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 distance. • 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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1378 of 4801

NISSAN TEANA 2014 Service Manual
EC-378
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
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 v

Page 1379 of 4801

NISSAN TEANA 2014 Service Manual
P0462, P0463 FUEL LEVEL SENSOR
EC-379
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
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EC
NP
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P0462, P0463 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462301
DTC DETECTION LOGIC
NOTE:
�

Page 1380 of 4801

NISSAN TEANA 2014 Service Manual
EC-380
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0500 VSS
P0500 VSS
DescriptionINFOID:0000000009462303
ECM receives vehicle speed signals from two different
paths via CAN communication line: One is from th

EC-380
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0500 VSS
P0500 VSS
DescriptionINFOID:0000000009462303
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.
DTC LogicINFOID:0000000009462304
DTC DETECTION LOGIC
NOTE:
• If DTC P0500 is displayed with DTC UXXXX, fi rst 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-
404, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.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.
TESTING CONDITION:
Before performing the following procedure, confi rm that battery voltage is 10 V or more at idle.
>> GO TO 2.
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 5 sec onds 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 lift ed 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-380, "Diagnosis Procedure"
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462305
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-60, "DTC Index"
.
Is the inspection result normal?
YES >> GO TO 2.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0500 VEH SPEED SEN/CIRC
(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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1381 of 4801

NISSAN TEANA 2014 Service Manual
P0500 VSSEC-381
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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EC
NP
O
NO >> Perform trouble shooting relevant to DTC indicated.
2.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

Page 1382 of 4801

NISSAN TEANA 2014 Service Manual
EC-382
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0506 ISC SYSTEM
P0506 ISC SYSTEM
DescriptionINFOID:0000000009462306
The ECM controls the engine idle speed to a specified leve
l through the fine adjustment

EC-382
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0506 ISC SYSTEM
P0506 ISC SYSTEM
DescriptionINFOID:0000000009462306
The ECM controls the engine idle speed to a specified leve
l through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idli ng speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is t he lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine l oad (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000009462307
DTC DETECTION LOGIC
NOTE:
If DTC P0506 is displayed with ot her DTC, first perform the trouble diagnosis for the other DTC.
DTC CONFIRMATION PROCEDURE
1.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.
If the target idle speed is ou t of the specified value, perform EC-179, "Work Procedure"
, before con-
ducting DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm th at battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10 °C (14 °F).
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and run it for at least 1 minute at idle speed.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-382, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462308
1.CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
Is intake air leak detected?
YES >> Discover air leak location and repair.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0506 ISC SYSTEM
(Idle air control system RPM lower
than expected) The idle speed is less than the target idle
speed by 100 rpm or more. • Electric throttle control actuator
• Intake air leak
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1383 of 4801

NISSAN TEANA 2014 Service Manual
P0506 ISC SYSTEMEC-383
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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EC
NP
O
NO >> Replace ECM. Refer to
EC-540, "Removal and Installation".
Revision: November 20132014 Altima NAMRevis

Page 1384 of 4801

NISSAN TEANA 2014 Service Manual
EC-384
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0507 ISC SYSTEM
P0507 ISC SYSTEM
DescriptionINFOID:0000000009462309
The ECM controls the engine idle speed to a specified leve
l through the fine adjustment

EC-384
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0507 ISC SYSTEM
P0507 ISC SYSTEM
DescriptionINFOID:0000000009462309
The ECM controls the engine idle speed to a specified leve
l through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idli ng speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is t he lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine l oad (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000009462310
DTC DETECTION LOGIC
NOTE:
If DTC P0507 is displayed with ot her DTC, first perform the trouble diagnosis for the other DTC.
DTC CONFIRMATION PROCEDURE
1.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.
If the target idle speed is ou t of the specified value, perform EC-179, "Work Procedure"
, before con-
ducting DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm th at battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10 °C (14 °F).
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and run it for at least 1 minute at idle speed.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-384, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462311
1.CHECK PCV HOSE CONNECTION
Confirm that PCV hose is connected correctly.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0507 ISC SYSTEM
(Idle air control system RPM higher
than expected) The idle speed is more than the target idle
speed by 200 rpm or more. • Electric throttle control actuator
• Intake air leak
• PCV system
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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