2003 NISSAN TEANA check engine

LAN-52
[CAN]
TROUBLE DIAGNOSIS

*: P range only
TYPE 3
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive Vehicle speed signalRT
RRR T R
A/T CHECK indicator lamp signal R T
A/T position indicator lamp signal
R
*RT
Output shaft revolution signal R T
ABS warning lamp signal R T
Brake warning lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R R R TSignals
ECM
ADP
BCM
M&A
DISP
TCM
ABS
IPDM-E
SignalsECM
ADP
AFS
BCM
I-KEY
M&A
STRG
DISP
TCM
ABS
IPDM-E
A/C compressor request signal TR
Accelerator pedal position signal T R R
Closed throttle position signal T R
Cooling fan speed request signal TR
Engine and A/T integrated control signalTR
RT
Engine coolant temperature signal T R
Engine speed signal T R R
Fuel consumption monitor signalTR
TR
Malfunction indicator signal T R
Wide open throttle position signal T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signalTR
TR
Door lock/unlock status signal T R
Door switch signal R T R R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Ignition switch signal R T R
Key fob door unlock signal R T
Key fob ID signal R T
Key switch signal R T

TROUBLE DIAGNOSIS
LAN-73
[CAN]
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LAN

3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to EC-70, "
Circuit Diagram" (QR engine),
EC-413, "
Circuit Diagram" (VQ engine).
OK or NG
OK >>
Present error: Replace the ECM. Refer to EC-47, "Procedure After Replacing ECM" (QR
engine), EC-389, "
Procedure After Replacing ECM" (VQ engine).

Past error: Error was detected in the ECM branch line.
NG >> Repair the power supply and the ground circuit.
Driver Seat Control Unit Branch Line CircuitBKS002EE
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–Driver seat control unit connector
–Harness connector B46
–Harness connector B116
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of driver seat control unit.
2. Check the resistance between the driver seat control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the driver seat control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the driver seat control unit. Refer to SE-17, "
Schematic" .
OK or NG
OK >>
Present error: Replace the driver seat control unit. Refer to SE-103, "Removal and Installation"
.

Past error: Error was detected in the driver seat control unit branch line.
NG >> Repair the power supply and the ground circuit.
Driver seat control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B117 2 12 Approx. 54 – 66

HEADLAMP - XENON TYPE -
LT-33
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Aiming AdjustmentBKS001NF
PREPARATION BEFORE ADJUSTING
For Details, Refer To the Regulations In Your Own Country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on level ground.
3. Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.
LOW BEAM AND HIGH BEAM
1. Turn headlamp low beam ON.
2. Use adjustment screws to perform aiming adjustment.
PKIC9406E

LT-60
HEADLAMP - HALOGEN TYPE -

Aiming AdjustmentBKS001O1
PREPARATION BEFORE ADJUSTING
For Details, Refer To the Regulations In Your Own Country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on level ground.
3. Set that there is no-load in vehicle other then the driver (or equivalent weight placed in driver’s position).
Coolant, engine oil filled up to correct level and full fuel tank.
LOW BEAM AND HIGH BEAM
1. Turn headlamp low beam ON.
CAUTION:
Be sure aiming switch is set to “0” when performing aiming adjustment.
2. Use adjustment screws to perform aiming adjustment.
PKIC9406E

HEADLAMP AIMING CONTROL (AUTO)
LT-115
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2. CHECK HEADLAMP LOW SIGNAL
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. Lighting switch is turned 1ST position.
4. Check voltage between height sensor harness connector and
ground.
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
NG >> Repair harness or connector.
DTC B2086 [FRQ. OVER LIMIT]BKS002CW
1. CHECK HEIGHT SENSOR
1. Start engine and place vehicle in a driving condition.
2. Select “HEAD LAMP LEVELIZER” on CONSULT-II and “DATA MONITOR” on “SELECT DIAG MODE”
screen.
3. Check the vehicle speed on “SPEED SIG” screen.
OK or NG
OK >> Erase the self-diagnosis. After drive the vehicle more
than 5 minutes, perform the self-diagnosis again.

[B2086] is displayed again: Replace height sensor,
and initialize it. Refer to LT- 1 2 0 , "
Removal and Instal-
lation of Height Sensor" .

NO DTC is displayed: INSPECTION END
NG >> GO TO 2.
Terminal
Voltage (+)
(-)
Height sensor
connectorTerminal
C4 6 Ground Battery voltage
SKIB8821E
SPEED SIG : Correct vehicle speed should be
displayed.
PKIB7209E

LU-1
ENGINE LUBRICATION SYSTEM
B ENGINE
CONTENTS
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SECTION LU
A
LU

ENGINE LUBRICATION SYSTEM
QR
PRECAUTIONS .......................................................... 3
Precautions for Liquid Gasket .................................. 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
LUBRICATION SYSTEM ............................................ 5
Lubrication Circuit .................................................... 5
System Chart ........................................................... 6
ENGINE OIL ............................................................... 7
Inspection ................................................................. 7
ENGINE OIL LEVEL ............................................. 7
ENGINE OIL APPEARANCE ................................ 7
ENGINE OIL LEAKAGE ........................................ 7
OIL PRESSURE CHECK ...................................... 7
Changing Engine Oil ................................................ 9
OIL FILTER ............................................................... 10
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 10
INSPECTION AFTER INSTALLATION ............... 10
OIL PUMP ..................................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
INSPECTION AFTER INSTALLATION ................ 11
Disassembly and Assembly .................................... 11
DISASSEMBLY .................................................... 11
INSPECTION AFTER DISASSEMBLY ............... 12
ASSEMBLY ......................................................... 13
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 14
Standard and Limit ................................................. 14
OIL PRESSURE .................................................. 14
ENGINE OIL CAPACITY (APPROXIMATE) ........ 14
OIL PUMP ........................................................... 14
REGULATOR VALVE .......................................... 14
VQ
PRECAUTIONS ........................................................ 15
Precautions for Liquid Gasket ................................ 15
LIQUID GASKET APPLICATION PROCEDURE ... 15
PREPARATION ......................................................... 16
Special Service Tools ............................................. 16
Commercial Service Tools ...................................... 16
LUBRICATION SYSTEM .......................................... 17
Lubrication Circuit ................................................... 17
System Chart .......................................................... 18
ENGINE OIL .............................................................. 19
Inspection ............................................................... 19
ENGINE OIL LEVEL ............................................ 19
ENGINE OIL APPEARANCE .............................. 19
ENGINE OIL LEAKAGE ...................................... 19
OIL PRESSURE CHECK .................................... 20
Changing Engine Oil ............................................... 21
OIL FILTER ............................................................... 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSTALLATION ................................................... 22
INSPECTION AFTER INSTALLATION ................ 22
OIL COOLER (VQ35DE) ........................................... 23
Removal and Installation ........................................ 23
REMOVAL ........................................................... 23
INSPECTION AFTER REMOVAL ....................... 24
INSTALLATION ................................................... 24
INSPECTION AFTER INSTALLATION ................ 24
OIL PUMP ................................................................. 25
Removal and Installation ........................................ 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
INSPECTION AFTER INSTALLATION ................ 25
Disassembly and Assembly .................................... 25
DISASSEMBLY ................................................... 25
INSPECTION AFTER DISASSEMBLY ................ 26
ASSEMBLY ......................................................... 27

ENGINE OIL
LU-7
[QR]
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ENGINE OILPFP:KLA92
InspectionBBS0059P
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop
it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within
the range shown in the figure.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE

Check engine oil for white turbidity or heavy contamination.

If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for engine oil leakage around the following area.

Oil pan

Oil pan drain plug

Oil pressure switch

Oil filter

Intake valve timing control cover and intake valve timing control solenoid valve

Front cover

Mating surface between cylinder block and lower cylinder block

Mating surface between cylinder block and cylinder head

Mating surface between cylinder head and rocker cover

Crankshaft oil seals (front and rear)
OIL PRESSURE CHECK
WARNING:

Be careful not to burn yourself, as engine oil may be hot.

Engine oil pressure check should be in “ Parking position”.
1. Check engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" .
2. Remove splash guard (RH).
3. Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using deep socket (commercial ser-
vice tool).
PBIC0249E
PBIC2428E

LU-8
[QR]
ENGINE OIL

4. Install oil pressure gauge and hose (SST).
5. Start engine and warm it up to normal operating temperature.
6. Check oil pressure with engine running under no-load.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80°C (176°F)]
If difference is extreme, check oil passage and oil pump for oil leaks.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to specification.
Use Genuine Liquid Gasket or equivalent.
c. After warming up engine, make sure there is no leaks of engine oil with running engine.
SLC926-A
Engine speed
rpm Approximate discharge pressure
kPa (bar, kg/cm2 , psi)
Idle speed More than 98 (0.98, 1.0, 14)
2,000 More than 294 (2.94, 3.0, 43)
: 14.8 N·m (1.5 kg-m, 11 ft-lb)