2003 NISSAN TEANA power steering fluid

BRC-2 ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 35
Removal and Installation ........................................ 35
COMPONENTS ................................................... 35
REMOVAL ........................................................... 36
INSTALLATION .................................................... 36
VDC/TCS/ABS
PRECAUTIONS ......................................................... 37
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 37
Precautions for Brake System ................................ 37
Precautions for Brake Control ................................ 37
PREPARATION ......................................................... 39
Special Service Tools ............................................. 39
ON-VEHICLE SERVICE ............................................ 40
Adjustment of Steering Angle Sensor Neutral Posi-
tion .......................................................................... 40
OPERATION PROCEDURE ................................ 40
SYSTEM DESCRIPTION .......................................... 41
System Diagram ..................................................... 41
Functions ................................................................ 41
VDC ..................................................................... 41
TCS ..................................................................... 41
ABS ..................................................................... 42
EBD ..................................................................... 42
Fail-Safe Function .................................................. 42
VDC/TCS SYSTEM ............................................. 42
ABS, EBD SYSTEM ............................................ 42
Hydraulic Circuit Diagram ....................................... 43
CAN Communication .............................................. 43
SYSTEM DESCRIPTION .................................... 43
TROUBLE DIAGNOSIS ............................................ 44
How to Perform Trouble Diagnosis Quick and Accu-
rate Repair .............................................................. 44
INTRODUCTION ................................................. 44
DIAGNOSIS FLOW CHART ................................ 45
ASKING COMPLAINTS ....................................... 46
EXAMPLE OF DIAGNOSIS SHEET .................... 46
Component Parts Location ..................................... 47
Schematic ............................................................... 48
Wiring Diagram — VDC — ..................................... 49
Control Unit Input/Output Signal Specifications ...... 55
REFERENCE VALUE FROM CONSULT-II ......... 55
CONSULT-II Functions ........................................... 57
CONSULT-II MAIN FUNCTION ........................... 57
CONSULT-II SETTING PROCEDURE ................ 57
Self-Diagnosis ........................................................ 58
DESCRIPTION .................................................... 58
OPERATION PROCEDURE ................................ 58
ERASE MEMORY ............................................... 58
DISPLAY ITEM LIST ........................................... 59
Data Monitor ........................................................... 61
OPERATION PROCEDURE ................................ 61
DISPLAY ITEM LIST ........................................... 61
Active Test .............................................................. 63
OPERATION PROCEDURE ................................ 63TEST ITEM .......................................................... 64
For Fast and Accurate Diagnosis ............................ 65
PRECAUTIONS FOR DIAGNOSIS ..................... 65
Basic Inspection ...................................................... 66
BRAKE FLUID LEVEL, LEAKAGE AND BRAKE
PAD ...................................................................... 66
POWER SUPPLY CIRCUIT TERMINAL LOOSE-
NESS AND BATTERY ......................................... 66
INSPECTION OF ABS WARNING LAMP, BRAKE
WARNING LAMP, VDC OFF INDICATOR LAMP,
AND SLIP INDICATOR LAMP ............................. 66
TROUBLE DIAGNOSIS FOR SYSTEM .................... 68
Wheel Sensor System ............................................ 68
Engine System ........................................................ 70
ABS Actuator and Electric Unit (Control Unit) 1 ...... 70
Steering Angle Sensor System ............................... 71
Yaw Rate/Side/Decel G Sensor System ................. 72
Pump Motor, Motor Relay System .......................... 74
Park/Neutral Position (PNP) Switch Circuit ............. 75
Solenoid and VDC Change-Over Valve, Actuator
Relay System .......................................................... 76
Stop Lamp Switch System ...................................... 77
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground System .................................... 78
Brake Fluid Level Switch System ............................ 80
CAN Communication System ................................. 81
Component Parts Inspection ................................... 81
VDC OFF SWITCH .............................................. 81
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 82
Excessive ABS Function Operation Frequently ...... 82
Unexpected Pedal Reaction ................................... 83
Longer Stopping Distance ....................................... 83
ABS Function Does Not Operate ............................ 84
Pedal Vibration and ABS Operation Sound Occurs ... 84
Vehicle Jerks During VDC/TCS/ABS Control .......... 85
WHEEL SENSORS ................................................... 86
Removal and Installation ......................................... 86
COMPONENTS ................................................... 86
REMOVAL ............................................................ 86
INSTALLATION .................................................... 86
SENSOR ROTOR ...................................................... 87
Removal and Installation ......................................... 87
FRONT ................................................................. 87
REAR ................................................................... 87
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 88
Removal and Installation ......................................... 88
COMPONENTS ................................................... 88
REMOVAL ............................................................ 89
INSTALLATION .................................................... 89
G SENSOR ................................................................ 90
Removal and Installation ......................................... 90
REMOVAL ............................................................ 90
INSTALLATION .................................................... 90
STEERING ANGLE SENSOR ................................... 91
Removal and Installation ......................................... 91
REMOVAL ............................................................ 91
INSTALLATION .................................................... 91

SYSTEM DESCRIPTION
BRC-41
[VDC/TCS/ABS]
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BRC

SYSTEM DESCRIPTIONPFP:00000
System DiagramBFS000DP
FunctionsBFS000DQ
VDC

In addition to the TCS/ABS function, the steering amount and brake operation amount are detected from
the steering angle sensor and brake switch, and the driving condition (amount of under-steering/over-
steering) is determined from information from the yaw rate/side/decel G sensor, vehicle speed sensor, etc.
This information is used to improve vehicle stability by controlling the braking and engine power to all four
wheels.

The SLIP indicator lamp flashes to inform the driver of VDC operation.

During VDC operation, the body and brake pedal lightly vibrate and mechanical noises may be heard.
This is normal.

ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while
engine is running. In this case, restart engine on a normal road, and if ABS warning lamp, VDC OFF indi-
cator lamp, and SLIP indicator lamp turn off, there is no malfunction.
TCS

Speed signals for 4 wheels control engine output and transaxle conditions so that slip rate of the drive
wheels is optimum. ABS actuator and electric unit (control unit) detects wheelspin. Output from the control
unit controls brake fluid pressure to both LH and RH drive wheels while cutting fuel to the engine and clos-
ing the throttle valve to reduce engine torque when wheelspin is detected. Throttle position is continuously
controlled to ensure the appropriate engine torque at all times.

Depending on road conditions, the driver may have a sluggish feel. This is normal, because the optimum
traction has the highest priority by TCS operation.

TCS may be activated momentarily the vehicle suddenly accelerates, suddenly downshifts, or is driven on
a road with a varying surface friction coefficient.

During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
SFIA3329E

EM-42
[QR]
CAMSHAFT

4. Remove reservoir tank of power steering oil pump from bracket, and move power steering piping aside.
Refer to PS-39, "
HYDRAULIC LINE" .
CAUTION:
To avoid power steering fluid leakage, temporarily fix reservoir tank of power steering oil pump
vertically.
5. Remove intake valve timing control cover with the following procedure:
a. Disconnect intake valve timing control solenoid valve harness connector.
b. Disconnect ground cables and remove harness clip.
c. Remove intake valve timing control solenoid valve, if necessary.
d. Loosen bolts in reverse order as shown in the figure.
e . U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ] o r e q u i v a l e n t t o o l t o c u t l i q -
uid gasket for removal.
CAUTION:
Be careful not to damage the mating surfaces.
6. Pull chain guide between camshaft sprockets out through front cover.
7. Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a. Remove splash guard (RH).
b. Rotate crankshaft pulley clockwise and align TDC mark to timing
indicator on front cover.
c. At the same time, make sure that the mating marks on camshaft
sprockets are located as shown in the figure.

If not, rotate crankshaft pulley one more turn to align mating
marks to the positions in the figure.
8. Remove camshaft sprockets with the following procedure:
a. Put indelible paint marks on timing chain link plate aligning with the mating marks on camshaft sprockets.
KBIA0085E
KBIA0190E
PBIC2351E

CYLINDER HEAD
EM-69
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Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

EM-78
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ENGINE ASSEMBLY

REMOVAL
Outline
Remove engine and transaxle assembly with front suspension member from vehicle downward. Separate
front suspension member, and then separate engine and transaxle.
Preparation
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
3. Remove the following parts.

Hood assembly; Refer to BL-13, "HOOD" .

Undercover and splash guards (RH and LH)

Front road wheels and tires

Battery, battery tray and battery tray bracket; Refer to SC-4, "BATTERY" .

Drive belt; Refer to EM-14, "DRIVE BELTS" .

Air duct (inlet); Refer to EM-17, "AIR CLEANER AND AIR DUCT" .

Air cleaner case (upper) with mass air flow sensor and air duct assembly; Refer to EM-17, "AIR
CLEANER AND AIR DUCT" .

Alternator and alternator bracket; Refer to SC-27, "CHARGING SYSTEM" .

Radiator and radiator cooling fan assembly, reservoir tank of radiator and system hoses; Refer to CO-
13, "RADIATOR" .
4. Disconnect engine room harness connector from ECM side and set it aside for easier work.
5. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to CO-24,
"THERMOSTAT AND WATER CONTROL VALVE" .
2. Disconnect fuel feed hose, and plug it to prevent fuel from draining. Refer to EM-34, "
FUEL INJECTOR
AND FUEL TUBE" .
3. Disconnect control cable from transaxle. Refer to AT- 2 1 3 , "
SHIFT CONTROL SYSTEM" .
4. Disconnect B terminal harness of starter motor. Refer to SC-14, "
STARTING SYSTEM" .
Engine Room RH
1. Remove IPDM E/R and bracket. Refer to PG-17, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM)" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on vehicle side with a
rope to avoid putting load on it. Refer to ATC-134, "
Removal and Installation of Compressor" .
3. Remove reservoir tank of power steering oil pump. Temporarily secure it on engine side with a rope. Refer
to PS-39, "
HYDRAULIC LINE" .
Vehicle Underbody
1. Remove RH and LH front drive shafts. Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to EM-26, "
OIL PAN AND OIL STRAINER" and AT- 2 4 1 , "TRANSAXLE ASSEMBLY" .
4. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT- 2 4 1 , "
TRAN-
SAXLE ASSEMBLY" .
5. Disconnect connecting rod for front stabilizer. Refer to FSU-5, "
FRONT SUSPENSION ASSEMBLY" .
6. Remove steering lower joint from steering gear. Refer to PS-12, "
STEERING COLUMN" .
7. Remove power steering fluid piping from front suspension member. Refer to PS-39, "
HYDRAULIC LINE"
.
8. Disconnect power steering fluid piping at a point between vehicle and engine, and install plug it to prevent
power steering fluid. Refer to PS-39, "
HYDRAULIC LINE" .

EM-80
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ENGINE ASSEMBLY

INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

Use procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

DRIVE BELTS
EM-129
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Release the tension by loosing lock nut and turning adjusting nut when adjusting the belt. Tighten
once the lock nut at 4.9 N·m (0.50 Kg-m, 43 in-lb). Then, adjust the belt tension by loosing lock nut
between 45° and 90°.

Keep engine oil, working fluid and engine coolant away from belt.

Do not twist or bend belt excessively.
ALTERNATOR AND A/C COMPRESSOR BELT
1. Remove splash guard (RH).
2. Loosen idler pulley lock nut (A).
3. Release the belt tension on idler pulley by turning adjusting nut
(B).
4. Tighten lock nut (A).
5. Loosen lock nut (A) between 45° and 90°.
6. Adjust tension by turning adjusting nut (B).

For specified belt tension, refer to EM-128, "Checking Drive
Belts" .
7. Tighten lock nut (A).
8. Tighten adjusting nut (B).
POWER STEERING OIL PUMP BELT
1. Remove splash guard (RH).
2. Loosen lock bolt (C).
3. Loosen power steering oil pump mounting bolt (D).

Bolt head (D) is engine rear side.
4. Adjust tension by turning adjusting bolt (E).

For specified belt tension, refer to EM-128, "Checking Drive Belts" .
NOTE:
Adjusting bolt (E) is loosened with counterclockwise rotation.
5. Tighten lock bolt (C).
6. Tighten power steering oil pump mounting bolt (D).
Removal and InstallationBBS004VO
REMOVAL
1. Remove splash guard (RH).
2. Fully loosen each belt by following the guidelines in EM-128, "
Tension Adjustment" . Remove alternator
and A/C compressor belt and then power steering oil pump belt.
CAUTION:
Grease is applied to idler pulley adjusting bolt. Be careful to keep grease away from belt.
INSTALLATION
1. Install each belt to pulley in the reverse order of removal. : 4.9 N·m (0.50 kg-m, 43 in-lb)
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
: 5.4 N·m (0.55 kg-m, 48 in-lb)
PBIC2450E
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
: 43.2 N·m (4.4 kg-m, 32 ft-lb)

EM-172
[VQ]
FRONT TIMING CHAIN CASE

Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level