battery NISSAN TEANA 2003 Service Manual

EC-756
[VQ]
VIAS

Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
29 Y/G VIAS control solenoid valve[Engine is running]

Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Engine speed:
Between 1,800 and 3,600 rpm
(VQ35DE engine)
Between 1,800 and 3,750 rpm
(VQ23DE engine)0 - 1.0V
111 W / BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]

More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
11 9
120R/G
R/GPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)

VIAS
EC-759
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5. CHECK VACUUM TANK
Refer to EC-760, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace vacuum tank.
6. CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect VIAS control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check voltage between VIAS control solenoid valve terminal 1
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E11, E253

Harness connectors E102, M57

Harness connectors F103, M52

Harness for open or short between VIAS control solenoid valve and IPDM E/R

Harness for open or short between VIAS control solenoid valve and ECM
>> Repair harness or connectors.
8. CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 29 and VIAS control solenoid valve terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2108E
Voltage: Battery voltage
PBIB0173E
Continuity should exist.

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-765
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureBBS0057G
Idle Speed and Ignition TimingBBS0057H
*: Under the following conditions:

Air conditioner switch: OFF

Electric load: OFF (Lights, heater fan & rear window defogger)

Steering wheel: Kept in straight-ahead position
Mass Air Flow SensorBBS0057I
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorBBS0057J
Engine Coolant Temperature SensorBBS0057K
Heated Oxygen Sensor 1 HeaterBBS0057L
Heated Oxygen sensor 2 HeaterBBS0057M
Crankshaft Position Sensor (POS)BBS0057N
Refer to EC-523, "Component Inspection" .
Camshaft Position Sensor (PHASE)BBS0057O
Refer to EC-532, "Component Inspection" .
Throttle Control MotorBBS0057P
Fuel InjectorBBS0057Q
Fuel pressure at idling kPa (bar, kg/cm2 , psi)Approximately 350 (3.5, 3.57, 51)
Target idle speed No load* (in P or N position)VQ23DE: 700 ± 50 rpm
VQ35DE: 625 ± 50 rpm
Air conditioner: ONIn P or N position VQ23DE: 750 rpm or more
VQ35DE: 700 rpm or more
Ignition timing In P or N position 15 ± 5° BTDC
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle0.9 - 1.1V (VQ23DE engine)*
1.0 - 1.3V (VQ35DE engine)*
Temperature °C (°F) Resistance kΩ
25 (77)1.800 - 2.200
80 (176)0.283 - 0.359
Temperature °C (°F)Resistance kΩ
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Resistance [at 25°C (77°F)] 3.3 - 4.0Ω
Resistance [at 25°C (77°F)] 5.0 - 7.0Ω
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)]VQ23DE: 13.5 - 17.5Ω
VQ35DE: 11.1 - 14.5Ω

SUNSHADE
EI-51
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Terminals and Reference Values for Rear SunshadeBIS0011W
Te r m i -
nalWire
colorItemSignal
Input/OutputConditionVoltage (V)
(Approx.)
1 G Ignition switch (ON or START) Input Ignition switch is ON or START position Battery voltage
2 B Ground — — 0
3 V Rear sunshade UP signal InputRear sunshade front switch or rear sunshade
rear switch (rear center armrest switch) operates
UP position 0
Other than above Battery voltage
4 R Rear sunshade DOWN signal InputRear sunshade front switch or rear sunshade
rear switch (rear center armrest switch) operates
DOWN position0
Other than above Battery voltage
5 G/W R range switch signal InputWhen A/T or CVT shift lever is R position Battery voltage
When A/T or CVT shift lever is other than
R position0
6 B Ground — — 0

EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
A
EM

ENGINE MECHANICAL
QR
PRECAUTIONS .......................................................... 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Drain Engine Coolant ...................... 5
Precautions for Disconnecting Fuel Piping .............. 5
Precautions for Removal and Disassembly ............. 5
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 5
Precautions for Assembly and Installation ............... 5
Parts Requiring Angle Tightening ............................. 6
Precautions For Liquid Gasket ................................. 6
REMOVAL OF LIQUID GASKET .......................... 6
LIQUID GASKET APPLICATION PROCEDURE ..... 6
PREPARATION ........................................................... 8
Special Service Tools ............................................... 8
Commercial Service Tools ...................................... 10
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 12
NVH Troubleshooting — Engine Noise .................. 12
Use the Chart Below to Help You Find the Cause
of the Symptom. ..................................................... 13
DRIVE BELTS ........................................................... 14
Checking Drive Belts .............................................. 14
Tension Adjustment ................................................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
Removal and Installation of Drive Belt Auto-Ten-
sioner ..................................................................... 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 16
AIR CLEANER AND AIR DUCT ............................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 18INSTALLATION ................................................... 18
Changing Air Cleaner Filter .................................... 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 18
INTAKE MANIFOLD ................................................. 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSTALLATION ................................................... 21
INSPECTION AFTER INSTALLATION ................ 22
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST .......................................................................... 23
Removal and Installation ........................................ 23
REMOVAL ........................................................... 23
INSPECTION AFTER REMOVAL ....................... 24
INSTALLATION ................................................... 24
OIL PAN AND OIL STRAINER ................................. 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSPECTION AFTER REMOVAL ....................... 28
INSTALLATION ................................................... 28
INSPECTION AFTER INSTALLATION ................ 30
IGNITION COIL ......................................................... 31
Removal and Installation ........................................ 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
SPARK PLUG(PLATINUM-TIPPED TYPE) .............. 32
Removal and Installation ........................................ 32
REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL ....................... 32
INSTALLATION ................................................... 33
FUEL INJECTOR AND FUEL TUBE ........................ 34
Removal and Installation ........................................ 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 36
INSPECTION AFTER INSTALLATION ................ 38
ROCKER COVER ..................................................... 39
Removal and Installation ........................................ 39
REMOVAL ........................................................... 39
INSTALLATION ................................................... 40

EM-2 CAMSHAFT ............................................................... 41
Removal and Installation ........................................ 41
REMOVAL ........................................................... 41
INSPECTION AFTER REMOVAL ........................ 44
INSTALLATION .................................................... 47
INSPECTION AFTER INSTALLATION ................ 49
Valve Clearance ...................................................... 50
INSPECTION ....................................................... 50
ADJUSTMENT .................................................... 51
TIMING CHAIN .......................................................... 53
Removal and Installation ........................................ 53
REMOVAL ........................................................... 54
INSPECTION AFTER REMOVAL ........................ 57
INSTALLATION .................................................... 58
OIL SEAL .................................................................. 62
Removal and Installation of Valve Oil Seal ............. 62
REMOVAL ........................................................... 62
INSTALLATION .................................................... 62
Removal and Installation of Front Oil Seal ............. 63
REMOVAL ........................................................... 63
INSTALLATION .................................................... 63
Removal and Installation of Rear Oil Seal .............. 64
REMOVAL ........................................................... 64
INSTALLATION .................................................... 64
CYLINDER HEAD ..................................................... 65
On-Vehicle Service ................................................. 65
CHECKING COMPRESSION PRESSURE ......... 65
Removal and Installation ........................................ 66
REMOVAL ........................................................... 66
INSPECTION AFTER REMOVAL ........................ 67
INSTALLATION .................................................... 68
INSPECTION AFTER INSTALLATION ................ 68
Disassembly and Assembly .................................... 70
DISASSEMBLY ................................................... 70
ASSEMBLY ......................................................... 71
Inspection After Disassembly ................................. 72
VALVE DIMENSIONS .......................................... 72
VALVE GUIDE CLEARANCE .............................. 73
VALVE GUIDE REPLACEMENT ......................... 73
VALVE SEAT CONTACT ..................................... 75
VALVE SEAT REPLACEMENT ........................... 75
VALVE SPRING SQUARENESS ......................... 76
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD ............................... 76
ENGINE ASSEMBLY ................................................ 77
Removal and Installation ........................................ 77
REMOVAL ........................................................... 78
INSTALLATION .................................................... 79
INSPECTION AFTER INSTALLATION ................ 80
CYLINDER BLOCK ................................................... 81
Disassembly and Assembly .................................... 81
DISASSEMBLY ................................................... 82
ASSEMBLY ......................................................... 86
How to Select Piston and Bearing .......................... 91
DESCRIPTION .................................................... 91
HOW TO SELECT PISTON ................................. 92
HOW TO SELECT CONNECTING ROD BEAR-ING ....................................................................... 92
HOW TO SELECT MAIN BEARING .................... 95
Inspection After Disassembly .................................. 99
CRANKSHAFT END PLAY .................................. 99
CONNECTING ROD SIDE CLEARANCE ........... 99
PISTON TO PISTON PIN OIL CLEARANCE ....... 99
PISTON RING SIDE CLEARANCE ...................100
PISTON RING END GAP ..................................100
CONNECTING ROD BEND AND TORSION .....101
CONNECTING ROD BIG END DIAMETER ......101
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................101
CYLINDER BLOCK DISTORTION ....................102
MAIN BEARING HOUSING INNER DIAMETER .103
PISTON TO CYLINDER BORE CLEARANCE ..103
CRANKSHAFT MAIN JOURNAL DIAMETER ...104
CRANKSHAFT PIN JOURNAL DIAMETER ......105
OUT-OF-ROUND AND TAPER OF CRANK-
SHAFT ...............................................................105
CRANKSHAFT RUNOUT ..................................105
CONNECTING ROD BEARING OIL CLEAR-
ANCE .................................................................105
MAIN BEARING OIL CLEARANCE ...................106
MAIN BEARING CRUSH HEIGHT ....................107
CONNECTING ROD BEARING CRUSH
HEIGHT .............................................................107
LOWER CYLINDER BLOCK MOUNTING BOLT
OUTER DIAMETER ...........................................107
CONNECTING ROD BOLT OUTER DIAMETER .107
SERVICE DATA AND SPECIFICATIONS (SDS) ....108
Standard and Limit ................................................108
GENERAL SPECIFICATIONS ...........................108
DRIVE BELT ......................................................108
EXHAUST MANIFOLD ......................................108
SPARK PLUG ....................................................108
CYLINDER HEAD ..............................................108
VALVE ................................................................109
CAMSHAFT AND CAMSHAFT BEARING .........113
CYLINDER BLOCK ............................................113
PISTON, PISTON RING AND PISTON PIN ......114
CONNECTING ROD ..........................................115
CRANKSHAFT ...................................................115
MAIN BEARING .................................................117
CONNECTING ROD BEARING .........................118
VQ
PRECAUTIONS .......................................................119
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................119
OPERATION PROCEDURE ..............................119
Precautions for Drain Engine Coolant ...................119
Precautions for Disconnecting Fuel Piping ...........119
Precautions for Removal and Disassembly ..........119
Precautions for Inspection, Repair and Replace-
ment ......................................................................119
Precautions for Assembly and Installation ............119

PRECAUTIONS
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[QR]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectBBS005KH
NOTE:

This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT
SYSTEM).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Drain Engine CoolantBBS005KI
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel PipingBBS005KJ

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyBBS005KK

When instructed to use special service tools, use the specified tools. Always be careful to work safely,
avoid forceful or uninstructed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified.
Precautions for Inspection, Repair and ReplacementBBS005KL
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationBBS005KM

Use torque wrench to tighten bolts or nuts to specification.

FUEL INJECTOR AND FUEL TUBE
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a. Remove quick connector cap (engine side).
b. With the sleeve side of quick connector release facing quick connector, install quick connector release
onto fuel tube.
c. Insert quick connector release into quick connector until sleeve
contacts and goes no further. Hold quick connector release on
that position.
CAUTION:
Inserting quick connector release hard will not disconnect
quick connector. Hold quick connector release where it
contacts and goes no further.
d. Draw and pull out quick connector straight from fuel tube.
CAUTION:

Pull quick connector holding “A” position in the figure.

Do not pull with lateral force applied. O-ring inside quick
connector may be damaged.

Prepare container and cloth beforehand as fuel will leak out.

Avoid fire and sparks.

Keep parts away from heat source. Especially, be careful when welding is performed around
them.

Do not expose parts to battery electrolyte or other acids.

Do not bend or twist connection between quick connector and fuel feed hose during installa-
tion/removal.

To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
4. Remove PCV hose. Refer to EM-19, "
INTAKE MANIFOLD" .
5. Disconnect harness connector from ignition coil.
6. Remove sub-harness for fuel injector.
7. Remove electric throttle control actuator and intake manifold support. Refer to EM-19, "
INTAKE MANI-
FOLD" .
KBIA0701E
KBIA0702E
PBIC2205E

CYLINDER HEAD
EM-65
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CYLINDER HEADPFP:11041
On-Vehicle ServiceBBS0059B
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-49, "
FUEL PRESSURE RELEASE" .
3. Disconnect fuel pump fuse to avoid fuel injection during mea-
surement.
4. Remove engine cover. Refer to EM-19, "
INTAKE MANIFOLD" .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-31, "
IGNITION COIL" and EM-32,
"SPARK PLUG(PLATINUM-TIPPED TYPE)" .
6. Connect engine tachometer (not required in use of CONSULT-II).
7. Install compression tester with adapter onto spark plug hole.

Use compression gauge whose picking up end inserted to
spark plug hole is smaller than 20 mm (0.79 in) in diameter.
Otherwise, it may be caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (bar, kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.
PBIB2110E
PBIC2420E
SBIA0533E
Standard Minimum Differential limit between cylinders
1,190 (11.9, 12.1, 173) / 250 990 (9.9, 10.1, 144) / 250 100 (1.0, 1.0, 14) / 250

EM-66
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CYLINDER HEAD


If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.

If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylin-
der head gasket.
9. After inspection is completed, install removed parts.
10. Start engine, and confirm that engine runs smoothly.
11. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-52, "
TROUBLE DIAGNOSIS" .
Removal and InstallationBBS0059C
REMOVAL
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant and engine oil. Refer to CO-10, "
Changing Engine Coolant" and LU-9, "Changing
Engine Oil" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant and engine oil on drive belt.
3. Remove the following components and related parts.

Exhaust manifold and three way catalyst assembly; Refer to EM-23, "EXHAUST MANIFOLD AND
THREE WAY CATALYST" .

Intake manifold and fuel tube assembly; Refer to EM-19, "INTAKE MANIFOLD" .

Water control valve and housing (water outlet); Refer to CO-24, "THERMOSTAT AND WATER CON-
TROL VALVE" .
1. Cylinder head assembly 2. Cylinder head gasket 3. Engine cover bracket (rear)
4. Cylinder head bolt
PBIC2424E