2008 NISSAN TEANA oil change

AV
NORMAL OPERATING CONDITION
AV-35
< SYMPTOM DIAGNOSIS >[AUDIO SYSTEM]
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003765606
NOTE:
 Audio operation information, refer to Owner's Manual.
 The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference,
etc.).
NOISE
The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
 Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
 Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves that reflect off mountains or buildings.
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and then determine the cause.
NOTE:
The source of the noise can be easily found by listening to the noise while removing the fuses of electrical
components, one by one.
Types of Noise and Possible Causes
Occurrence condition Possible cause
Occurs only when engine is ON.A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed. Ignition components
The occurrence of the noise is linked with the operation of the fuel pump.  Fuel pump condenser
Noise only occurs when various
electrical components are oper-
ating.A cracking or snapping sound occurs with the op-
eration of various switches. Relay malfunction, audio unit malfunction
The noise occurs when various motors are operat-
ing. Motor case ground
Motor
The noise occurs constantly, not just under certain conditions. Rear defogger coil malfunction
 Open circuit in printed heater
 Poor ground of antenna feeder line
A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively. Ground wire of body parts
 Ground due to improper part installation
 Wiring connections or a short circuit

BCS-32
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
WORK SUPPORT
ACTIVE TEST
SIGNAL BUFFER
SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)INFOID:0000000003809611
DATA MONITOR
ACTIVE TEST
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock/unlock switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock/unlock switch.
KEY CYL LK-SWNOTE:
This is displayed even when it is not equipped.
KEY CYL UN-SWNOTE:
This is displayed even when it is not equipped.
KEY CYL SW-TRNOTE:
This is displayed even when it is not equipped.
TR/BD OPEN SW Indicates [ON/OFF] condition of trunk lid opener switch.
TRNK/HAT MNTR Indicates [ON/OFF] condition of trunk room lamp switch.
RKE-LOCK Indicates [ON/OFF] condition of LOCK signal from Intelligent Key.
RKE-UNLOCK Indicates [ON/OFF] condition of UNLOCK signal from Intelligent Key.
RKE-TR/BD Indicates [ON/OFF] condition of TRUNK LID OPEN signal from Intelligent Key. Monitored Item Description
Test Item Description
SECURITY ALARM SET This mode is able to confirm and change security alarm ON-OFF setting.
THEFT ALM TRGThe switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching “CLEAR” on
CONSULT-III screen.
Test Item Description
THEFT INDThis test is able to check security indicator lamp operation. The lamp will be turned on when “ON”
on CONSULT-III screen is touched.
HEADLAMP(HI)This test is able to check vehicle security lamp operation. The headlamps will be activated for 0.5
seconds after “ON” on CONSULT-III screen is touched.
FLASHERThis test is able to check vehicle security hazard lamp operation. The hazard lamps will be activat-
ed after “ON” on CONSULT-III screen is touched.
Monitor item [UNIT] Description
PUSH SW
[Off/On]Displays the status of the push-button ignition switch (push switch) judged by BCM.
Te s t i t e mOpera-
tionDescription
OIL PRESSURE SWOff OFF
OnBCM transmits the oil pressure switch signal to the combination meter via CAN communica-
tion, which illuminates the oil pressure warning lamp in the combination meter.

EC-120
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
*: This item is not used on this vehicle.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
SET LAMP ON/OFF Indicates [ON/OFF] condition of SET lamp deter-
mined by the ECM according to the input signals.
BAT CUR SEN mV The signal voltage of battery current sensor is
displayed.
ALT DUTY SIG ON/OFF The control condition of the power generation
voltage variable control (determined by ECM ac-
cording to the input signals) is indicated.
ON: Power generation voltage variable control is
active.
OFF: Power generation voltage variable control
is inactive.
A/F ADJ-B1
— Indicates the correction of factor stored in ECM.
The factor is calculated from the difference be-
tween the target air-fuel ratio stored in ECM and
the air-fuel ratio calculated from A/F sensor 1 sig-
nal. A/F ADJ-B2
ALT DUTY % Indicates the duty ratio of the power generation
command value. The ratio is calculated by ECM
based on the battery current sensor signal. Monitored item Unit Description Remarks
TEST ITEM CONDITION JUDGMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TION Engine: Return to the original
non-standard condition
 Change the amount of fuel injec-
tion using CONSULT-III.If malfunctioning symptom disap-
pears, see CHECK ITEM. Harness and connectors
 Fuel injector
 Air fuel ratio (A/F) sensor 1
IGNITION TIM-
ING Engine: Return to the original
non-standard condition
 Timing light: Set
 Retard the ignition timing using
CONSULT-III.If malfunctioning symptom disap-
pears, see CHECK ITEM. Perform Idle Air Volume Learning.
POWER BAL-
ANCE Engine: After warming up, idle the
engine.
 A/C switch OFF
 Selector lever: P or N
 Cut off each injector signal one at
a time using CONSULT-III.Engine runs rough or dies. Harness and connectors
 Compression
 Fuel injector
 Power transistor
Spark plug
 Ignition coil
COOLING FAN*
1
Ignition switch: ON
 Turn the cooling fan “HI”, “MID”,
“LOW” and “OFF” using CON-
SULT-III.Cooling fan moves and stops. Harness and connectors
 Cooling fan motor
 IPDM E/R
ENG COOLANT
TEMP Engine: Return to the original
non-standard condition
 Change the engine coolant tem-
perature using CONSULT-III.If malfunctioning symptom disap-
pears, see CHECK ITEM. Harness and connectors
 Engine coolant temperature sen-
sor
 Fuel injector
FUEL PUMP RE-
LAY Ignition switch: ON (Engine
stopped)
 Turn the fuel pump relay “ON”
and “OFF” using CONSULT-III
and listen to operating sound.Fuel pump relay makes the operat-
ing sound. Harness and connectors
Fuel pump relay

TROUBLE DIAGNOSIS - SPECIFICATION VALUE
EC-127
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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NOTE:
Check “A/F ALPHA-B1”, “A/F ALPHA-B2” for approximately 1 minute because they may fluctuate. It is NG
if the indication is out of the SP value even a little.
Is the measurement value within the SP value?
YES >> GO TO 17.
NO-1 >> Less than the SP value: GO TO 2.
NO-2 >> More than the SP value: GO TO 3.
2.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and check that the indication is within the SP
value.
Is the measurement value within the SP value?
YES >> GO TO 4.
NO >> More than the SP value: GO TO 19.
3.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and check that the indication is within the SP
value.
Is the measurement value within the SP value?
YES >> GO TO 6.
NO-1 >> More than the SP value: GO TO 6.
NO-2 >> Less than the SP value: GO TO 25.
4.CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Stop the engine.
2. Disconnect PCV hose, and then plug it.
3. Start engine.
4. Select “A/F ALPHA-B1”, “A/F ALPHA-B2” in “SPEC” of “DATA MONITOR” mode, and check that the each
indication is within the SP value.
Is the measurement value within the SP value?
YES >> GO TO 5.
NO >> GO TO 6.
5.CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil.
NOTE:
This symptom may occur when a large amount of gasoline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detected after changing engine oil or changing driving con-
ditions.
>> INSPECTION END
6.CHECK FUEL PRESSURE
Check fuel pressure. (Refer to EC-411, "
Inspection".)
Is the inspection result normal?
YES >> GO TO 9.
NO-1 >> Fuel pressure is too high: Replace “fuel filter and fuel pump assembly” and then. GO TO 8.
NO-2 >> Fuel pressure is too low: GO TO 7.
7.DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly” and then GO TO 8.
NO >> Repair or replace malfunctioning part and then GO TO 8.
8.CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”

EC-146
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0075, P0081 IVT CONTROL SOLENOID VALVE
P0075, P0081 IVT CONTROL SOLENOID VALVE
DescriptionINFOID:0000000003856523
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.
DTC LogicINFOID:0000000003856524
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-146, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003856525
1.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between intake valve timing (IVT) control solenoid valve harness connector and ground
with CONSULT-III or tester.
Is the inspection result normal?
YES >> GO TO 2.
PBIB1842E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0075Intake valve timing control so-
lenoid valve (bank 1) circuitAn improper voltage is sent to the ECM
through intake valve timing control solenoid
valve. Harness or connectors
(Intake valve timing control solenoid valve
circuit is open or shorted.)
 Intake valve timing control solenoid valve P0081Intake valve timing control so-
lenoid valve (bank 2) circuit
DTCIVT control solenoid valve
Ground Voltage
Bank Connector Terminal
P0075 1 F81 2
Ground Battery voltage
P0081 2 F82 2

EC-218
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0335 CKP SENSOR (POS)
P0335 CKP SENSOR (POS)
DescriptionINFOID:0000000003856623
The crankshaft position sensor (POS) is located on the oil pan facing
the gear teeth (cogs) of the signal plate. 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 magnetic field near the sensor to
change.
Due to the changing magnetic field, 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.
DTC LogicINFOID:0000000003856624
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.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 more than 10.5 V with igni-
tion switch ON.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
If engine does not start, crank engine for at least 2 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
JMBIA0062ZZ
JMBIA0001GB
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0335Crankshaft position sen-
sor (POS) circuit The crankshaft position sensor (POS) signal
is not detected by the ECM during the first
few seconds of engine cranking.
 The proper pulse signal from the crankshaft
position sensor (POS) is not sent to ECM
while the engine is running.
 The crankshaft position sensor (POS) signal
is not in the normal pattern during engine run-
ning. Harness or connectors
[CKP sensor (POS) circuit is open or
shorted.]
(APP sensor 2 circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
 Crankshaft position sensor (POS)
 Accelerator pedal position sensor
 Refrigerant pressure sensor
 Signal plate

IGNITION SIGNAL
EC-341
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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IGNITION SIGNAL
DescriptionINFOID:0000000003856848
The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.
Component Function CheckINFOID:0000000003856849
1.INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT-III: GO TO 2.
YES-2 >> Without CONSULT-III: GO TO 3.
NO >> Go to EC-341, "
Diagnosis Procedure".
2.CHECK IGNITION SIGNAL FUNCTION
With CONSULT-III
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
2. Check that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-341, "
Diagnosis Procedure".
3.CHECK IGNITION SIGNAL FUNCTION
Without CONSULT-III
1. Let engine idle.
2. Read the voltage signal between ECM harness connector ground with an oscilloscope.
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-341, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003856850
1.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF, wait at least 10 seconds and then turn it ON.
2. Check the voltage between ECM harness connector and ground.
ECM
Ground Voltage signal
Connector Terminal
F79
Ground 10
11
18
19
21
JMBIA0035GB
ECM
Ground Voltage
Connector Terminal
E16 105 Ground Battery voltage

ENGINE ASSEMBLY
EM-69
< REMOVAL AND INSTALLATION >
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10. Remove starter motor. Refer to STR-15, "VQ25DE : Exploded View" (VQ25DE) or STR-20, "VQ35DE :
Exploded View" (VQ35DE).
Vehicle Underbody
1. Remove front drive shafts (RH and LH). Refer to FAX-16, "Exploded View".
2. Remove exhaust front tube. Refer to EX-5, "
Exploded View".
3. Remove heat insulator.
4. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to ST-16, "
Exploded View".
5. Disconnect front stabilizer connecting rod. Refer to FSU-14, "
Exploded View".
6. Remove strut assembly and steering knuckle fixing nuts and bolts. Refer to FSU-9, "
Exploded View" and
FA X - 8 , "
Exploded View".
7. Remove front wheel sensor (RH and LH) for ABS from steering knuckle. Refer to BRC-57, "
FRONT
WHEEL SENSOR : Exploded View".
8. Remove front brake caliper assembly with piping connected, and temporarily secure it to aside for vehicle
side. Refer to BR-34, "
BRAKE CALIPER ASSEMBLY : Exploded View".
9. Disconnect power steering piping at a point between vehicle and engine. Refer to ST-34, "
Exploded
View".
 Install plug to avoid leakage of power steering fluid.
10. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to EM-38, "
Exploded View" and TM-332, "Removal and Installation" (VQ25DE) or TM-168,
"Removal and Installation" (VQ35DE).
11. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-38, "
Exploded
View".
12. Remove crankshaft position sensor (POS). Refer to EM-38, "
Exploded View".
CAUTION:
 Handle carefully to avoid dropping and shocks.
 Never disassemble.
 Never allow metal powder to adhere to magnetic part at sensor tip.
 Never place sensors in a location where they are exposed to magnetism.
Removal
1. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of front suspension member.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2. Remove engine mounting insulator (RH) and engine mounting bracket (RH).
3. Remove mounting bolt between transverse link and front suspension member with power tool.
4. Remove front suspension member mounting nuts and bolts. Refer to FSU-16, "
Exploded View".
5. Carefully lower jack, or raise lift to remove the engine and the transaxle assembly and front suspension
member. When performing work, observe the following caution:
CAUTION:
 Confirm there is no interference with the vehicle.
 Check all connection points have been disconnected.
 Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support the vehi-
cle at rear jacking point(s) to prevent it from falling it off the lift.
Separation
PBIC1190E