2014 NISSAN TEANA Service Manual

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Page 1865 of 4801

NISSAN TEANA 2014 Service Manual
P0461 FUEL LEVEL SENSOREC-865
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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9. Touch “ON” and drain fuel approximately 30
(7-7/8 US gal, 6-5/8 Imp gal) and stop it.
10. Ch

Page 1866 of 4801

NISSAN TEANA 2014 Service Manual
EC-866
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0462, P0463 FUEL LEVEL SENSOR
P0462, P0463 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462712
DTC DETECTION LOGIC
NOTE:
• If DTC P0462 or P0463 is display

Page 1867 of 4801

NISSAN TEANA 2014 Service Manual
P0500 VSSEC-867
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P0500 VSS
DescriptionINFOID:0000000009462714
ECM receives vehicle speed signals from two different paths via CAN co

P0500 VSSEC-867
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0500 VSS
DescriptionINFOID:0000000009462714
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:0000000009462715
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 per form the trouble diagnosis for DTC P0607. Refer to EC-
884, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducti ng 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 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 li fted 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-867, "Diagnosis Procedure"
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462716
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-43, "CONSULT Function"
.
Is the inspection result normal?
YES >> GO TO 2.
DTC No. Trouble diagnosis
(Trouble diagnosis content) DTC detecting condition Possible cause
P0500 VEH SPEED SEN/CIRC
(Vehicle speed sensor) 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 secondary speed sen-
sor transmitted from TCM to ECM via CAN
communication and the vehicle speed indi-
cated on the combination meter exceeds
15km/h (10 MPH). • Harness or connector
(The CAN communication line is open
or shorted.)
• Combination meter
• ABS actuator and elec tric unit (control
unit)
• Wheel sensor
•TCM
• Secondary speed sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1868 of 4801

NISSAN TEANA 2014 Service Manual
EC-868
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0500 VSS
NO >> Perform trouble shooting relevant to DTC indicated.
2.CHECK DTC WITH ABS ACTUATOR AN
D ELECTRIC UNIT (CONTROL UNIT)
Check DTC with ABS actuato

Page 1869 of 4801

NISSAN TEANA 2014 Service Manual
P0506 ISC SYSTEMEC-869
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0506 ISC SYSTEM
DescriptionINFOID:0000000009462717
The ECM controls the engine idle speed to a specified le

P0506 ISC SYSTEMEC-869
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P0506 ISC SYSTEM
DescriptionINFOID:0000000009462717
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 load (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000009462718
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 conduc ted, always perform the following before conduct-
ing 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 out of the specified value, perform EC-683, "Work Procedure"
, before con-
ducting DTC CONFIRMATION PROCEDURE.
TESTING CONDITION:
• Before performing the following procedure, confirm that 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. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Restart engine and run it for at least 1 minute at idle speed.
6. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-869, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462719
1.CHECK INTAKE AIR LEAKAGE
1. Start engine and let it idle.
2. Listen for an intake air leakage after the mass air flow sensor.
Is intake air leakage detected?
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0506 Idle speed control sys-
tem RPM lower than ex-
pected The idle speed is less than the target idle speed
by 100 rpm or more. • Electric throttle control actuator
• Intake air leakage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1870 of 4801

NISSAN TEANA 2014 Service Manual
EC-870
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0506 ISC SYSTEM
YES >> Discover air leakage location and repair.
NO >> Replace ECM. Refer to EC-997, "Removal and Installation"
.
Revision: November 201320

Page 1871 of 4801

NISSAN TEANA 2014 Service Manual
P0507 ISC SYSTEMEC-871
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0507 ISC SYSTEM
DescriptionINFOID:0000000009462720
The ECM controls the engine idle speed to a specified le

P0507 ISC SYSTEMEC-871
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P0507 ISC SYSTEM
DescriptionINFOID:0000000009462720
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 load (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000009462721
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 conduc ted, always perform the following before conduct-
ing 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 out of the specified value, perform EC-683, "Work Procedure"
, before con-
ducting DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm that 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. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Restart engine and run it for at least 1 minute at idle speed.
6. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-871, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462722
1.CHECK PCV HOSE CONNECTION
Confirm that PCV hose is connected correctly.
Is the inspection result normal?
YES >> GO TO 2.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0507 Idle speed control sys-
tem 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 leakage
• PCV system
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1872 of 4801

NISSAN TEANA 2014 Service Manual
EC-872
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0507 ISC SYSTEM
NO >> Repair or replace malfunctioning part.
2.CHECK INTAKE AIR LEAKAGE
1. Start engine and let it idle.
2. Listen for an intake air leakage

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