< SERVICE DATA AND SPECIFICATIONS (SDS) 2014
QUICK REFERENCE CHART: ALTIMA
Fluids and Lubricants
INFOID:0000000010112411
Description Capacity (Approximate)
Metric US measure Imp measure
Fuel QR25DE
68 18 gal
15 gal
VQ35DE
Engine oil
Drain and refill With oil filter
change
QR25DE
4.6 4-7/8 qt
4 qt
VQ35DE 4.8 5-1/8 qt
4-1/4 qt
Without oil fil-
ter change QR25DE
4.3 4-1/2 qt
3-3/4 qt
VQ35DE 4.5 4-3/4 qt
4 qt
Dry engine
(engine overhaul) QR25DE
5.4 5-3/4 qt
4-3/4 qt
VQ35DE 5.3 5-5/8 qt
4-5/8 qt
Cooling system
(with reservoir tank
at MAX level) QR25DE
7.9 8-3/8 qt
7 qt
VQ35DE 9.2 9-3/4 qt
8-1/8 qt
CVT fluid RE0F10D
7.4 7-7/8 qt
6-1/2 qt
RE0F10E 8.2 8-5/8 qt
7-1/4 qt
Power steering fluid (E-PSF) 1.1 1-1/8 qt
1 qt
Brake fluid ———
Multi-purpose grease ———
Windshield washer fluid 4.5 4-3/4 qt
4 qt
Air conditioner system refrigerant 0.525 ± 0.025 kg 1.158 ± 0.055 lb 1.158 ± 0.055 lb
Air conditioner system oil 150 m5.1 fl oz
5.3 fl oz
COMPONENT PARTSEC-29
< SYSTEM DESCRIPTION > [QR25DE]
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*: These data are reference values and are measured between ECM terminals.
Crankshaft Position Sensor (POS)INFOID:0000000009462064
The crankshaft position sensor (POS
) is located on the oil pan facing
the gear teeth (cogs) of the signal pl ate. It detects the fluctuation of
the engine revolution.
The sensor consists of a permanent magnet and Hall IC.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnet ic field near the sensor to
change.
Due to the changing magnetic fiel d, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
ECM receives the signals as shown in the figure.
Camshaft Position Sensor (PHASE)INFOID:0000000009462065
The camshaft position sensor (PHASE) senses the retraction of
intake camshaft to identify a particular cylinder. The camshaft posi-
tion sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoper-
ative, the camshaft position sensor (PHASE) provides various con-
trols of engine parts instead, utilizing timing of cylinder identification
signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnet ic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor changes.
Engine coolant temperature
[° C ( °F)] Vo l ta g e* (V)
Resistance (k
Ω)
–10 (14) 4.4 7.0 - 11.4 20 (68) 3.5 2.37 - 2.63
50 (122) 2.2 0.68 - 1.00
90 (194) 1.0 0.236 - 0.260
SEF012P
JPBIA5848ZZ
JMBIA0714GB
JPBIA5846ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-30
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
ECM receives the signals as shown in the figure.
Intake Valve Timing Control Solenoid ValveINFOID:0000000009462066
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
Intake Valve Timing Intermediate Lock Control Solenoid ValveINFOID:0000000009462067
Intake valve timing intermediate lock control solenoid valve is acti-
vated by ON/OFF signals from the ECM.
The intake valve timing intermediate lock control solenoid valve
opens/closes the path of oil pressure acting on the lock key in the
camshaft sprocket (INT).
• When the solenoid valve becomes ON, oil pressure to the lock key
is trained to perform intermediate lock.
• When the solenoid valve becomes OFF, oil pressure is acted on the lock key to release the intermediate lock.
Exhaust Valve Timing Control Position SensorINFOID:0000000009462068
Exhaust valve timing control position sensor detects the protrusion of
the signal plate installed to the exhaust camshaft front end.
This sensor signal is used for sensing a position of the exhaust cam-
shaft.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
JMBIA0714GB
PBIB1842E
PBIB1842E
JPBIA5847ZZ
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COMPONENT PARTSEC-31
< SYSTEM DESCRIPTION > [QR25DE]
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Exhaust Valve Timing Control Solenoid ValveINFOID:0000000009462069
Exhaust valve timing control solenoi
d valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The exhaust valve timing control solenoid valve changes the oil
amount and direction of flow through exhaust valve timing control
unit or stops oil flow.
The longer pulse width retards valve angle.
The shorter pulse width advances valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix t he exhaust valve angle at the control
position.
Intake Manifold Runner Control ValveINFOID:0000000009462070
Intake manifold runner control valve is integrated to intake mani-
fold.
Intake manifold runner control valve is mounted each port of the
intake manifold and opened/closed by the intake manifold runner
control valve motor.
ECM controls the intake manifold runner control valve motor, accord-
ing to signals of engine speed, water temperature, etc. and stabilizes
combustion by generating a strong tunmble flow.
INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR
Intake manifold runner control valve motor is connected to the rear end of the valve shaft.
The motor opens or closes the valve by the output signal of the ECM.
INTAKE MANIFOLD RUNNER CONTROL VALVE POSITION SENSOR
Intake manifold runner control valve position sensor is connected to the front end of the valve shaft.
The sensor consists of valiable resister. It senses the valve shaft movement and feeds the voltage signals to
the ECM.
Intake Manifold Tuning ValveINFOID:0000000009462071
Intake manifold tuning valve is integrated to intake manifold.
Intake manifold tuning valve consists of valve and motor.
Intake manifold tuning valve is used to control the suction passage of
the intake manifold tuning system.
INTAKE MANIFOLD TUNING VALVE MOTOR
Intake manifold tuning valve motor is connected to the front end of the valve shaft.
The motor is operated by the ECM and it opens a nd closes the intake manifold tuning valve.
PBIB1842E
JPBIA5849ZZ
JPBIA5850ZZ
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COMPONENT PARTSEC-33
< SYSTEM DESCRIPTION > [QR25DE]
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Knock SensorINFOID:0000000009462074
The knock sensor is attached to t
he cylinder block. It senses engine
knocking using a piezoelectric el ement. A knocking vibration from
the cylinder block is sensed as vibrational pressure. This pressure is
converted into a voltage signal and sent to the ECM.
Engine Oil Pressure SensorINFOID:0000000009462075
The engine oil pressure (EOP) sens or is detects engine oil pressure
and transmits a voltage signal to the ECM.
Engine Oil Temperature SensorINFOID:0000000009462076
The engine oil temperature sensor is used to detect the engine oil
temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil tempera-
ture input. The sensor uses a ther mistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.
Engine speed Heated oxygen sensor 2 heater
Above 3,600 rpm OFF
Below 3,600 rpm after the following conditions are met.
• Engine: After warming up
• Keeping the engine speed between 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute under no load ON
JSBIA0284ZZ
JSBIA0292ZZ
JPBIA5280ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-86
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
DTC WORK SUPPORT Mode
ALTERNATOR
DUTY • Engine: Idle
• Change duty ratio using CON-
SULT. Battery voltage changes.
• Harness and connectors
•IPDM E/R
•Alternator
FUEL PUMP RELAY • Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON”
and “OFF” using CONSULT and
listen to operating sound. Fuel pump relay makes the operat-
ing sound. • Harness and connectors
• Fuel pump relay
VIAS S/V-1 • Ignition switch: ON
• Turn intake manifold tuning valve
“ON” and “OFF” using CONSULT
and listen to operating sound. Intake manifold tuning valve motor
makes an operating sound. • Harness and connectors
• Intake manifold tuning valve mo- tor
TUMBLE CONTROL
VA LV E • Ignition switch: ON
• Turn intake manifold runner con-
trol valve “ON” and “OFF” using
CONSULT and listen to operating
sound. Intake Manifold Runner control
valve motor makes an operating
sound. • Harness and connectors
• Intake Manifold Runner control valve motor
IGNITION TIMING • Engine: Return to the original
trouble condition
• Timing light: Set
• Retard the ignition timing using
CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Perform Idle Air Volume Learn-
ing.
POWER BALANCE • Engine: After warming up, idle the
engine.
• A/C switch OFF
• Selector lever: P or N
• Cut off each fuel injector signal one at a time using CONSULT. Engine runs rough or stops. • Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
VENT CONTROL/V • Ignition switch: ON (Engine
stopped)
• Turn solenoid valve “ON” and “OFF” using CONSULT and listen
to operating sound. Solenoid valve makes an operating
sound. • Harness and connectors
• Solenoid valve
INT V/T ASSIGN AN-
GLE • Engine: Return to the original
trouble condition
• Change intake valve timing using
CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Intake valve timing control sole- noid valve
EXH V/T ASSIGN
ANGLE • Engine: Return to the original
trouble condition
• Change exhaust valve timing us- ing CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Exhaust valve timing control so-
lenoid valve
COOLING FAN* • Ignition switch: ON
• Turn the cooling fan “LOW”, “HI” and “OFF” using CONSULT. Cooling fan moves and stops. • Harness and connectors
• IPDM E/R (Cooling fan relay)
• Cooling fan motor
Test item Condition Judgment Check item (Remedy)
Test mode Test item Corresponding DTC No. Reference page
EVAPORATIVE SYSTEM PURG FLOW P0441 P0441
EC-337
PURG VOL CN/V P1444 P0443EC-342
A/F SEN1 A/F SEN1(B1) P1276 P0130 EC-258
HO2S2HO2S2(B1) P1146 P0138
EC-274HO2S2(B1) P1147 P0137EC-268
HO2S2(B1) P0139 P0139EC-282
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
ECM
EC-95
< ECU DIAGNOSIS INFORMATION > [QR25DE]
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(SB) 27
(BR) Engine coolant tempera-
ture sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine coolant temperature.
30
(SB) —Sensor ground
[Camshaft position sen-
sor (PHASE)] —— —
31
(LG) 30
(SB) Camshaft position sensor
(PHASE) Input[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle 1.0 - 2.0
[Engine is running]
• Engine speed is 2,000 rpm 1.0 - 2.0
32
(V) —Sensor power supply
[Camshaft position sen-
sor (PHASE)] — [Ignition switch: ON] 5.0 V
33
(V) 34
(BR) Intake air temperature
sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake
air temperature.
34
(BR) —Sensor ground
(Mass air flow sensor, in-
take air temperature sen-
sor) —— —
35
(Y) 34
(BR) Mass air flow sensor Input [Ignition switch: ON]
• Engine stopped 1.3 V
[Engine is running]
• Warm-up condition
• Idle speed 1.3 - 1.6 V
[Engine is running]
• Warm-up condition
• Engine is revving from idle to about
4,000 rpm 1.3 - 1.6 to 2.5 V (Check for linear
voltage rise in response to en-gine being increased to about
4,000 rpm.)
36
(SB) —
Sensor power supply
(Mass air flow sensor) — [Ignition switch: ON] 5.0 V
37
(B) — Shield — — —
38
(V) —Sensor ground
(Engine oil pressure sen-
sor) —— —
Terminal No.
(Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
JPBIA4726ZZ
JPBIA4727ZZ
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EC-96
< ECU DIAGNOSIS INFORMATION >[QR25DE]
ECM
39
(L) 38
(V) Engine oil pressure sen-
sor Input[Engine is running]
• Warm-up condition
• Idle speed 1.3 V
[Engine is running]
• Warm-up condition
• Engine speed is 2,000 rpm 2.7 V
40
(BR) 38
(V) Sensor power supply
(Engine oil pressure sen-
sor) — [Ignition switch: ON] 5.0 V
41
(W) 128
(GR) A/F sensor 1 Input [Ignition switch: ON] 2.2 V
42
(SB) —Sensor ground
[Exhaust valve timing
control position sensor] —— —
43
(LG) 42
(SB) Exhaust valve timing con-
trol position sensor Input[Engine is running]
• Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending
on rpm at idle 1.0 - 2.0
[Engine is running]
• Engine speed is 2,000 rpm 1.0 - 2.0
44
(V) —Sensor power supply
[Exhaust valve timing
control position sensor] — [Ignition switch: ON] 5 V
45
(B) 128
(GR) A/F sensor 1 Input [Engine is running]
• Engine speed is 2,000 rpm 1.8 V
Output voltage varies with air fuel ratio.
49
(W) 128
(GR) Intake manifold runner
control valve motor
(Close) Output[Ignition switch ON]
• Engine coolant temperature: Be- tween -12 °C (10 °F) and 59 °C
(138 °F)
• Accelerator pedal: Depressed → ful-
ly released Battery voltage appears for about
1 second.
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
OutputJPBIA3359ZZ
JPBIA3360ZZ
JPBIA4730ZZ
JPBIA4731ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM