2003 NISSAN TEANA power steering

MA-42
CHASSIS AND BODY MAINTENANCE

Checking Power Steering Fluid and LinesBLS00063
Check fluid level in reservoir tank with engine off.
Use “HOT” range at fluid temperatures of 50 to 80°C (122 to 176°F)
or “COLD” range at fluid temperatures of 0 to 30°C (32 to 86°F).
CAUTION:

Do not overfill.

Recommended fluid is DEXRONTM III type ATF or equiva-
lent.
Refer to MA-14, "
RECOMMENDED FLUIDS AND LUBRI-
CANTS" .


Check lines for improper attachment, leaks, cracks, dam-
age, loose connections, chafing and deterioration.

Check rack boots for accumulation of power steering fluid.
Axle and Suspension PartsBLS00064
Check front and rear axle and suspension parts for excessive play,
cracks, wear or other damage.

Shake each wheel to check for excessive play.

Check wheel bearings for smooth operation.

Check axle and suspension nuts and bolts for looseness.

Check strut (shock absorber) for oil leakage or other damage.

Check suspension ball joint for grease leakage and ball joint
dust cover for cracks or other damage.
SST850C
SST851C
SMA525A
SFA392B

MA-46
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitBLS00068
BELT DEFLECTION (QR20DE)
BELT DEFLECTION (VQ23DE AND VQ35DE)
ENGINE COOLANT CAPACITY (APPROXIMATE) (QR20DE)
Unit: (lmp qt)
ENGINE COOLANT CAPACITY (APPROXIMATE) (VQ23DE AND VQ35DE)
Unit: (lmp qt)
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
ENGINE OIL CAPACITY (APPROXIMATE) (QR20DE)
Unit: (lmp qt) Tension of drive belt Auto adjustment by auto-tensioner
Deflection adjustment Unit: mm (in)
Used belt
New belt
Limit After adjustment
Alternator and A/C compressor
belt7 (0.28)4.2 - 4.6
(0.17 - 0.18)3.7 - 4.1
(0.15 - 0.16)
Power steering oil pump belt 11 (0.43)7.3 - 8.0
(0.29 - 0.30)6.5 - 7.2
(0.26 - 0.28)
Applied pushing force 98 N (10 kg, 22 lb)
PBIC2449E
Engine coolant capacity (With reservoir tank at “MAX” level) 7.4 (6-1/2)
Reservoir tank coolant capacity (At “MAX” level) 0.8 (3/4)
Coolant capacity (With reservoir tank at “MAX” level)8.2 (7-1/4) [VQ23DE]
8.8 (7-3/4) [VQ35DE]
Reservoir tank coolant capacity (At “MAX” level) 0.8 (3/4)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Drain and refillWith oil filter change 3.9 (3-3/8)
Without oil filter change 3.7 (3-1/4)
Dry engine (Overhaul)4.5 (4)

HARNESS
PG-63
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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

HARNESS
PG-65
C
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F
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MA
B
PG

POWER CVT Transmission Control Module (Power Supply)
POWER PG Power Supply Routing
PRGVLV EC EVAP Canister Purge Volume Control Solenoid Valve
PRIPS CVT Primary Pressure Sensor
PRSCVT CVT Primary Speed Sensor CVT (Revolution Sensor)
PS/SEN EC Power Steering Pressure Sensor
PT/SEN AT Power Train Sensor
R/FOG LT Rear Fog Lamp
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
RRO2 EC Heated Oxygen Sensor 2 Heater
RRO2 EC Heated Oxygen Sensor 2 Heater Bank 1
RRO2 EC Heated Oxygen Sensor 2 Heater Bank 2
SEAT SE Power Seat
SECPS CVT Secondary Pressure Sensor
SECPSV CVT Secondary Pressure Solenoid Valve
SEN/PW EC Sensor Power Supply
SESCVT CVT Secondary Speed Sensor CVT (Revolution Sensor)
SHADE EI Rear Sunshade
SHIFT AT A/T Shift Lock System
SHIFT CVT CVT Shift Lock System
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
START SC Starting System
STM CVT Step Motor
STOP/L LT Stop Lamp
STSIG CVT Start Signal Circuit
TAIL/L LT Parking, License and Tail Lamps
TCV AT Torque Converter Clutch Solenoid Valve
TCV CVT Torque Converter Clutch Solenoid Valve
TLID BL Trunk Lid Opener
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
TPS3 EC Throttle Position Sensor
TURN LT Turn Signal and Hazard Warning Lamp
VDC BRC Vehicle Dynamics Control System
VIAS/V EC VIAS Control Solenoid Valve
VSSA/T AT Vehicle Speed Sensor A/T (Revolution Sensor)
VSSMTR AT Vehicle Speed Sensor MTR
W/ANT AV Audio Antenna
WARN DI Warning Lamps Code Section Wiring Diagram Name

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
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SECTION PS
A
B
PS

POWER STEERING SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 3
OPERATION PROCEDURE ................................. 3
Precautions for Steering System .............................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 6
NVH Troubleshooting Chart ..................................... 6
POWER STEERING FLUID ........................................ 7
Checking Fluid Level ................................................ 7
Checking Fluid Leakage ........................................... 7
Air Bleeding Hydraulic System ................................. 7
STEERING WHEEL .................................................... 9
On-Vehicle Inspection and Service .......................... 9
CHECKING CONDITION OF INSTALLATION ...... 9
CHECKING STEERING WHEEL PLAY ................ 9
CHECKING NEUTRAL POSITION STEERING
WHEEL ................................................................. 9
CHECKING STEERING WHEEL TURNING
FORCE .................................................................. 9
CHECKING FRONT WHEEL TURNING ANGLE ... 10
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
STEERING COLUMN ............................................... 12
Removal and Installation ........................................ 12
COMPONENTS .................................................. 12
REMOVAL ........................................................... 12
INSPECTION AFTER REMOVAL ....................... 13
INSTALLATION ................................................... 14INSPECTION AFTER INSTALLATION ................ 14
Disassembly and Assembly .................................... 15
COMPONENTS ................................................... 15
DISASSEMBLY ................................................... 15
INSPECTION AFTER DISASSEMBLY ................ 15
ASSEMBLY ......................................................... 15
INSPECTION AFTER ASSEMBLY ...................... 16
POWER STEERING GEAR AND LINKAGE ............ 17
Removal and Installation ........................................ 17
COMPONENTS ................................................... 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 19
INSPECTION AFTER INSTALLATION ................ 19
Disassembly and Assembly .................................... 20
COMPONENTS ................................................... 20
DISASSEMBLY ................................................... 21
INSPECTION AFTER DISASSEMBLY ................ 23
ASSEMBLY ......................................................... 24
POWER STEERING OIL PUMP ............................... 29
On-Vehicle Inspection and Service ......................... 29
CHECKING RELIEF OIL PRESSURE ................ 29
Removal and Installation ........................................ 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 30
Disassembly and Assembly (Except for QR20DE
Models) ................................................................... 31
COMPONENTS ................................................... 31
INSPECTION BEFORE DISASSEMBLY ............. 31
DISASSEMBLY ................................................... 31
INSPECTION AFTER DISASSEMBLY ................ 32
ASSEMBLY ......................................................... 33
Disassembly and Assembly (QR20DE Models) ..... 35
COMPONENTS ................................................... 35
INSPECTION BEFORE DISASSEMBLY ............. 35
DISASSEMBLY ................................................... 35
INSPECTION AFTER DISASSEMBLY ................ 36
ASSEMBLY ......................................................... 37
HYDRAULIC LINE .................................................... 39
Removal and Installation ........................................ 39
COMPONENTS (EXCEPT FOR QR20DE MOD-

PRECAUTIONS
PS-3
C
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MA
B
PS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BGS0004B
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectBGS0004C
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.

POWER STEERING FLUID
PS-7
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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.