engine NISSAN TEANA 2003 Service Manual

HARNESS
PG-63
C
D
E
F
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B
PG

Wiring Diagram Codes (Cell Codes) BKS002FS
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C ATC Air Conditioner
ABS BRC Anti-Lock Brake System
AFS LT Adaptive Front Lighting System
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC Automatic Speed Control Device (ASCD) Brake Switch
ASC/SW EC Automatic Speed Control Device (ASCD) Steering Switch
ASCBOF EC Automatic Speed Control Device (ASCD) Brake Switch
ASCIND EC Automatic Speed Control Device (ASCD) Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUT/DP SE Automatic Drive Positioner
AUTO/L LT Auto Light Control
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-Up Lamp
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN CVT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COOL/F EC Cooling Fan Control
CVTIND DI CVT Indicator Lamp
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
EMNT EC Electronic Controlled Engine Mount
ENGSS AT Engine Speed Signal
ETC1 EC Electric Throttle Control Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor
F/FOG LT Front Fog Lamp
F/LID BL Fuel Lid Opener
F/PUMP EC Fuel Pump
FRO2 EC Heated Oxygen Sensor 1 Heater

ELECTRICAL UNITS LOCATION
PG-67
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PG

ELECTRICAL UNITS LOCATIONPFP:25230
Electrical Units Location BKS00251
ENGINE COMPARTMENT
CKIM0363E

POWER STEERING FLUID
PS-7
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B
PS

POWER STEERING FLUIDPFP:KLF20
Checking Fluid LevelBGS0003P

Check fluid level with the engine stopped.

Make sure that fluid level is between MIN and MAX.

Fluid levels at HOT and COLD are different. Do not confuse
them.
CAUTION:

The fluid level should not exceed the MAX line. Excessive
fluid will cause fluid leakage from the cap.

Do not reuse drained power steering fluid.
Checking Fluid LeakageBGS0003Q
Check hydraulic connections for fluid leakage, cracks, damage,
looseness, or wear.
1. Run engine until the fluid temperature reaches 50 to 80°C
(122 to 176°F) in reservoir tank, and keep engine speed idle.
2. Turn steering wheel several times from full left stop to full right
stop.
3. Hold steering wheel at each lock position for five seconds and
carefully, check for fluid leakage.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not overtighten con-
nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to PS-29, "
POWER STEERING OIL
PUMP" .
6. Check steering gear boots for accumulation of fluid, indicating from steering gear.
Air Bleeding Hydraulic SystemBGS0003R
If air bleeding is not complete, the following symptoms can be observed.

Bubbles are created in reservoir tank.

Clicking noise can be heard from oil pump.

Excessive buzzing in oil pump.
NOTE:
Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of
the system.
1. Turn steering wheel several times from full left stop to full right stop with engine off.
CAUTION:
Filling reservoir tank with fluid so as not to lower fluid level below the MIN line while steering
wheel turning.
2. Start engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.
3. Repeat step 2 above several times at approximately 3 second intervals.
CAUTION:
Do not hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4. Check fluid for bubbles and white contamination.
5. Stop engine if bubbles and white contamination do not drain out. Perform steps 2 to 3 above after waiting
until bubbles and white contamination drain out.HOT : Fluid temperature 50 – 80°C (122 – 176°F)
COLD : Fluid temperature 0 – 30°C (32 – 86°F)
SGIA0232J
SGIA0506E

PS-8
POWER STEERING FLUID

6. Stop the engine, and then check fluid level.

STEERING WHEEL
PS-9
C
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B
PS

STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceBGS0003S
CHECKING CONDITION OF INSTALLATION

Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check steering gear assembly mounting nut and bolts for looseness. Refer to PS-17, "COMPONENTS" .
CHECKING STEERING WHEEL PLAY

Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on
the outer circumference.

When the measurement value is outside the standard value, check backlash for each joint of steering col-
umn assembly and installation condition of power steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL

Make sure that steering gear assembly, steering column and steering wheel are installed in the correct
position.

Perform neutral position inspection after wheel alignment. Refer to FSU-5, "Wheel Alignment Inspection" .

Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.

Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80°C (122 to 176°F).]
NOTE:
Tires need to be inflated normal pressure.
4. Check steering wheel turning force when steering wheel has
been turned 360° from neutral position.
NOTE:
Multiply the distance L from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-29,
"CHECKING RELIEF OIL PRESSURE" .
a. Disconnect lower shaft and steering knuckle from steering gear assembly. Refer to FAX-5, "
COMPO-
NENT" , PS-12, "COMPONENTS" .
b. Start and run engine at idle to make sure steering fluid has reached normal operating temperature.Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 – 35 mm (0 – 1.38 in)
Steering wheel turning force
: Less than 45 N (4.6 kg, 10 lb)
SGIA1615E

PS-10
STEERING WHEEL

c. While pulling outer socket slowly in ±11.5 mm (±0.453 in) range
from neutral position, make sure rack sliding force is within
specification.
d. If rack sliding force is not within specification, overhaul steering
gear assembly.
CHECKING FRONT WHEEL TURNING ANGLE

Check front wheel turning angle after toe-in inspection. Place
front wheels on turning radius gauges and rear wheels on
stands. Check the maximum inner and outer wheel turning
angles for LH and RH road wheels.

With the engine at idle, turn steering wheel from full left stop to
full right stop and measure the turning angles.

Measure rack stroke if angles are outside the specified value.

Disassemble steering gear assembly to check the cause that
rack stroke is outside of the standard.

Steering angles are not adjustable. Check steering gear assem-
bly, steering column assembly and front suspension compo-
nents for wear or damage if any of the turning angles are
different from the specified value. Replace any of them, if any
non-standard condition exists.Rack sliding force
: 210.6 – 269.4 N (21.5 – 27.5 kg, 47 – 61 lb)
SST090B
FAA0016D
Tire size 205/65R16 215/55R17
Inner wheel (Angle: A)Minimum 37°00′ (37.0°)33°00′ (33.0°)
Nominal 41°00′ (41.0°)37°00′ (37.0°)
Maximum 42°00′ (42.0°)38°00′ (38.0°)
Outer wheel (Angle: B) 33°00′ (33.0°)31°00′ (31.0°)
SGIA0055E
Tire size 205/65R16 215/55R17
Rack stroke L 73.5 mm (2.894 in) 68.5 mm (2.697 in)
SGIA0629J

POWER STEERING GEAR AND LINKAGE
PS-19
C
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PS

8. Remove high-pressure tube and low-pressure hose of hydraulic
piping, and then drain power steering fluid. Refer to PS-39,
"HYDRAULIC LINE" .
9. Remove fixing bolt (lower side) of lower shaft.
10. Remove stabilizer connecting rod lower nut, and then separate
stabilizer connecting rod from stabilizer bar. Refer to FSU-7,
"Components" .
11. Remove mounting nut and bolt of transverse link ball joint, and
then remove transverse link from steering knuckle. Refer to
FSU-7, "
Components" .
12. Remove front exhaust tube. Refer to EX-2, "
EXHAUST SYS-
TEM" .
13. Remove steering hydraulic piping bracket from front suspension member and rear engine mounting insu-
lator. Refer to PS-39, "
HYDRAULIC LINE" .
14. Set jack under transaxle assembly.
15. Remove front engine mounting bracket and front engine mounting insulator mounting bolts. Refer to EM-
77, "ENGINE ASSEMBLY" .
16. Remove rear engine mounting bracket and rear engine mounting insulator mounting bolts. Refer to EM-
77, "ENGINE ASSEMBLY" .
17. Remove rear engine mounting insulator and front suspension member fixing nuts and bolts. Refer to EM-
77, "ENGINE ASSEMBLY" .
18. Set jack under front suspension member.
19. Loosen mounting nuts (front side) of front suspension member. Refer to FSU-7, "
Components" .
20. Remove mounting bolts (body side) of member stay, and then loosen nuts (front suspension member side
mounting point) of member stay. Refer to FSU-7, "
Components" .
21. Gradually lower jack to remove steering gear assembly mounting nut and bolts and remove rack mounting
bracket, rack mounting insulator and sleeve from vehicle, and then remove steering gear assembly from
vehicle.
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-17, "COMPONENTS" .

When installing lower shaft to steering gear assembly, follow the procedure listed below.
–Set rack of steering gear in the neutral position.
NOTE:
To get the neutral position of rack, turn pinion assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.
–Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.
–Install slit part of lower shaft (C) aligning with the projection (A)
of rear cover cap (1). Make sure that the slit part of lower shaft
(C) is aligned with both the projection (A) of rear cover cap (1)
and the marking position (B) of gear housing assembly.
–After installation, bleed air from the steering hydraulic system.
Refer to PS-39, "
HYDRAULIC LINE" .
–Perform final tightening of nuts and bolts on each part under
unladen conditions with tyres on level ground when removing
steering gear assembly. Check wheel alignment. Refer to FSU-
5, "Wheel Alignment Inspection" .
–Adjust neutral position of steering angle sensor after checking the wheel alignment for the models with
VDC. Refer to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .
INSPECTION AFTER INSTALLATION
Make sure that steering wheel operates smoothly by turning several times from full left stop to full right stop.
SGIA0987E
SGIA1140E

POWER STEERING OIL PUMP
PS-29
C
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B
PS

POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceBGS0003Y
CHECKING RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1. Connect the hydraulic pressure gauge [SST] between oil pump
discharge connector and high-pressure hose. Bleed air from the
hydraulic circuit while opening valve fully. Refer to PS-7, "
Air
Bleeding Hydraulic System" .
2. Start engine. Run engine until oil temperature reaches 50 to
80°C (122 to 176°F).
CAUTION:

Leave the valve of the hydraulic pressure gauge [SST]
fully open while starting and running engine. If engine is
started with the valve closed, the hydraulic pressure in
oil pump goes up to the relief pressure along with
unusual increase of oil temperature.

Be sure to keep hose clear of belts and other parts when engine is started.
3. Fully close the hydraulic pressure gauge [SST] valve with
engine at idle and measure the relief oil pressure.
CAUTION:
Never keep valve closed for 10 seconds or longer.
4. Open the valve slowly after measuring. Repair oil pump if the
relief oil pressure is outside the standard. Refer to PS-31, "
Dis-
assembly and Assembly (Except for QR20DE Models)" , PS-35,
"Disassembly and Assembly (QR20DE Models)" .
5. After inspection, disconnect the hydraulic pressure gauge [SST]
from hydraulic circuit, then add fluid and bleed air. Refer to PS-
7, "Air Bleeding Hydraulic System" .
Relief oil pressure
Except for QR20DE models8,000 - 8,800 kPa
(80 – 88 bar, 81.6 – 89.8 kg/cm
2 , 1,160 – 1,276 psi)
QR20DE models9,000 – 9,800 kPa
(90 – 98 bar, 91.8 – 100 kg/cm
2 , 1,305 – 1,421 psi)
SGIA0364E
SGIA0726E

PREPARATION
RF-3
C
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F
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RF

PREPARATIONPFP:00002
Commercial Service ToolsBIS0010N
Tool name Description
Engine ear Locating the noise
SIIA0995E

SQUEAK AND RATTLE TROUBLE DIAGNOSES
RF-5
C
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RF

DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Engine Ear or mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to RF-6, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape are available through your authorized Nissan Parts Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
Each item can be ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 × 135 mm (3.94 × 5.31 in)/76884-71L01: 60 × 85 mm (2.36 × 3.35 in)/76884-71L02: 15 ×
25 mm (0.59 × 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 × 50 mm (1.97 × 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50
× 50 mm (1.97 × 1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 × 50 mm (1.18 × 1.97 in)