2003 NISSAN X-TRAIL air bleeding

BRC-110
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Actuator operation check
1. Connect 9 and 10 terminals of actuator to 40 and 41 terminals of
relay box.
2. Measure the motor voltage (No.4 terminal to body earth) with
oscilloscope. Then check the motor reverse voltage occasioned
time.
The motor reverse voltage occasioned time is more than 0.1
sec.
CAUTION:

Perform checking of motor relay unit. Then confirm that
relay functions.

Driving actuator motor is with in 4 sec. to prevent heating
up.

Standard condition of the motor reverse voltage occa-
sioned time is: Battery voltage is 12V. Temperature 20°.
when the battery voltage or temperature is lower than the
standard, the motor reverse voltage occasioned time
becomes slightly shorter.
Symptom 1: ABS Works Frequently.EFS001AS
Inspection procedure
1. INSPECTION START
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> GO TO 2.
NO >> Refer to wheel sensor and rotor lines.
2. LOOSENESS INSPECTION
Check front axle for looseness.
Is inspection result OK?
YES >>BRC-110, "Symptom 2: Unexpected Pedal Action"
NO >> Axle inspection and repair
Symptom 2: Unexpected Pedal ActionEFS001AT
Inspection procedure
1. BRAKE PEDAL STROKE INSPECTION
Check the brake pedal stroke.
Is the stroke excessively long?
YES >> Check the bleeding and brake system.
NO >> GO TO 2.
SFIA1824E

TROUBLE DIAGNOSIS
BRC-111
[ESP/TCS/ABS]
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BRC

2. PEDAL FORCE INSPECTION
Check that brake is effective with the pedal depressed.
Is the pedal force heavy, but effective?
YES >> Normal
NO >> GO TO 3.
3. CONNECTOR AND PERFORMANCE INSPECTION
Disconnect the actuator relay unit connector to deactivate the ABS function. Check that brake is effective.
Is brake effective?
YES >> GO TO 4.
NO >> Brake line inspection
4. ABS WARNING LAMP INDICATOR INSPECTION
Check that ABS warning lamp illuminates.
Does ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 5.
5. WHEEL SENSOR INSPECTION
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 3: Longer Stopping DistanceEFS001AU
Inspection procedure
1. INSPECTION START
Check that the stopping distance when braking becomes longer only on a snowy or gravel road.
Does the stopping distance when braking become longer only on a snowy or gravel road?
YES >> It may be longer than that of vehicle without ABS.
NO >> GO TO 2.
2. PERFORMANCE CHECK
Disconnect the actuator relay box to deactivate the ABS function.
Is the stopping distance still longer?
YES >>
Brake line air bleeding

Brake line inspection
NO >> GO TO 3.
3. ABS WARNING LAMP INDICATOR INSPECTION
Check that ABS warning lamp illuminates.
Does ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 4.

ESP/TCS/ABS ACTUATOR AND RELAY BOX
BRC-119
[ESP/TCS/ABS]
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BRC

ESP/TCS/ABS ACTUATOR AND RELAY BOXPFP:47850
Removal and InstallationEFS001CR

The above figure shows LH model. RH model figure is the mirror image.

Pay attention to the following when removing actuator.
Be careful of the following.
CAUTION:

Before servicing, disconnect the battery terminals.

To remove the brake tube, use a flare nut wrench to prevent the flare nuts and brake tube from
being damaged. To install, use a brake tube torque wrench.

Do not remove and install the actuator by holding the harness.

After completing the work, bleed the brake piping of air. Refer to BR-9, "Bleeding Brake System" .

Make sure to connect the ground terminal securely.
SFIA0927E

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
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SECTION
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PS

POWER STEERING SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Caution ..................................................................... 3
FPREPARATION ........................................................ 4
Special Service Tools (SST) ..................................... 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Trouble shooting Chart .................................... 5
POWER STEERING FLUID ........................................ 6
Checking Fluid Level ................................................ 6
Checking Fluid Leakage ........................................... 6
Bleeding Hydraulic System ...................................... 6
STEERING WHEEL .................................................... 7
On-Vehicle Inspection and Service .......................... 7
PLAY INSPECTION .............................................. 7
NEUTRAL POSITION INSPECTION .................... 7
STEERING TORQUE CHECK .............................. 7
STEERING ANGLE INSPECTION ........................ 7
Removal and Installation .......................................... 8
REMOVAL ............................................................. 8
INSTALLATION ..................................................... 8
STEERING COLUMN ............................................... 10
Removal and Installation ........................................ 10
REMOVAL OF LOWER JOINT AND HOLE
COVER ............................................................... 10
INSTALLATION OF LOWER JOINT AND HOLE
COVER ............................................................... 10
REMOVAL OF STEERING COLUMN ASSEM-
BLY ....................................................................... 11
INSTALLING STEERING COLUMN ASSEMBLY .... 11
Disassembly and Assembly ................................... 12
DISASSEMBLY ................................................... 12
INSPECTION AFTER DISASSEMBLY ............... 12
ASSEMBLY ......................................................... 12
POWER STEERING GEAR AND LINKAGE ............ 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 13Components ........................................................... 15
MODEL PR24AD ................................................. 15
Disassembly and Assembly .................................... 16
DISASSEMBLY ................................................... 16
INSPECTION AFTER DISASSEMBLY ................ 17
ASSEMBLY ......................................................... 18
POWER STEERING OIL PUMP ............................... 24
On-Vehicle Inspection and Service ......................... 24
OIL PUMP PULLEY HYDRAULIC PRESSURE
INSPECTION ...................................................... 24
Removal and Installation (QR20DE and QR25DE
engine models) ....................................................... 24
REMOVAL ........................................................... 24
INSTALLATION ................................................... 24
Disassembly and Assembly(QR20DE and
QR25DE engine models) ........................................ 25
INSPECTION BEFORE DISASSEMBLY ............. 25
DISASSEMBLY ................................................... 25
INSPECTION AFTER DISASSEMBLY ................ 26
ASSEMBLY ......................................................... 26
Removal and Installation (YD22DDTi engine
model) ..................................................................... 28
Disassembly and Assembly (YD22DDTi engine
model) ..................................................................... 30
INSPECTION BEFORE DISASSEMBLY ............. 30
DISASSEMBLY ................................................... 31
INSPECTION AFTER DISASSEMBLY ................ 32
ASSEMBLY ......................................................... 32
HYDRAULIC LINE .................................................... 34
Components (QR20DE and QR25DE engine mod-
els) .......................................................................... 34
REMOVAL AND INSTALLATION ........................ 38
Components (YD22DDTi engine model) ................ 39
REMOVAL AND INSTALLATION ........................ 41
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 42
Wheel ..................................................................... 42
Steering Angle ........................................................ 42
Steering Column ..................................................... 42
Steering Linkage ..................................................... 42
Steering Gear ......................................................... 43

PS-6
POWER STEERING FLUID

POWER STEERING FLUIDPFP:KLF20
Checking Fluid LevelEGS0004B

Check the fluid level with the engine OFF.

Check that fluid level is between MAX and MIN marks on tank.
Fluid level should not exceed MAX mark. Excessive fluid will
cause fluid to leak from cap.

Note that fluid level can change depending on temperature of
fluid. HIGH and LOW marks are shown on tank to indicate the
proper level at high temperature and low temperature respec-
tively.
CAUTION:

Never reuse drained power steering fluid.

Use DEXRONTM III or equivalent. Never use Nissan Power Steering Fluid Special, Nissan Matic
Fluid C, or D.
Checking Fluid LeakageEGS0004C
Check hydraulic connections for any leakage, crack, damage, loose-
ness, or wear.
1. Run engine until fluid temperature reaches 50 to 80°C (122 to
176°F) in reservoir tank. Keep engine speed at idle.
2. Turn steering wheel several times from stop to stop.
3. Turn the steering wheel clockwise or counter clockwise until it
reaches the stop and hold it for five seconds. Check for fluid
leak.
CAUTION:
Do not hold steering wheel at stop for 15 seconds or longer.
Otherwise, pump may be damaged.
4. If any leak is found on joint, loosen and retighten flair nut. Excessive tightening may damage O-ring,
washer, or connector.
Bleeding Hydraulic SystemEGS0004D
1. Lift vehicle.
2. Fill tank up to MAX mark. Turn steering wheel several times from stop to stop. Add fluid if fluid level goes
down. Repeat this step until there is no fluid decrease and no bubble in tank.
3. Start engine and repeat step above with engine at idle. Continue step until no decrease in fluid happens.
If bleeding is not complete, following symptoms can be observed.

Bubbles are created in reservoir tank.

Rattling noise can be heard from oil pump.

Whining noise can be heard from oil pump.
Turn steering wheel slowly or stop vehicle. Sound of fluid movement may be heard from gear valve and
pump. This sound has nothing to do with steering performance or durability.HOT : Oil temperature 50 to 80°C (122 to 176°F)
COLD : Oil temperature 0 to 30°C (32 to 86°F)
STC0996D
SST836C

POWER STEERING GEAR AND LINKAGE
PS-13
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PS

POWER STEERING GEAR AND LINKAGEPFP:49001
Removal and InstallationEGS0004I
REMOVAL
1. Remove cotter pin, and loosen mounting nut. Remove tie rod from steering knuckle with a pitman arm
puller.
CAUTION:

Be careful not to damage dust boot at ball joint of tie rod.

Before using pitman arm puller (multi-purpose tool), loosely tighten nut for temporary holding.
2. Mark lower joint and steering gear with paint for easy installation. Remove pinch bolt from gear side of
lower joint.
3. Remove high pressure-side tube and low pressure-side hose of hydraulic piping from steering gear.
4. Remove mounting nuts on upper portion of stabilizer connecting rod and stabilizer clamp mounting bolts.
Move stabilizer toward vehicle front.
5. Remove steering gear assembly mounting bolts and nuts. Remove power steering tube bracket and
steering gear assembly from suspension member.
6. Tilt steering gear to prevent any contact with other parts. Then remove it from right side of vehicle.
INSTALLATION
Paying attention to following items, install in the reverse order of removal.

After installation, bleed air. Refer to PS-6, "Bleeding Hydraulic System" .

Remove mounting bolt and nut from upper portion of lower joint. This will facilitate installation of lower joint
to steering gear. Then slide lower joint in place.

Check lower slit of lower joint is engaged with projection on rear
cover cap. Install pinch bolt for lower portion of lower joint.
Check steering gear is in straight-ahead position. Also check
rear cover is in position shown in figure. Then install lower joint
to steering gear.
1. Power steering gear assembly 2. Power steering tube bracket 3. Cotter pin
SGIA0009E
SGIA0105E

POWER STEERING OIL PUMP
PS-29
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2. Revolving crank pulley, set tool.
3. Fix tool with chain cover fixing bolts.
4. Using suitable tool, remove sprocket fixing nut and washer.
CAUTION:
Do not remove Tool while power steering oil pump is
removed.
5. Remove power steering pump fixing bolts, then remove it.
6. Apply Gasket to the installation surface of the engine chain case
cover as shown in the figure before installing the chain case
cover to the engine.
7. Bleed air after installation. Refer to PS-6, "
Bleeding Hydraulic
System"
SST885C
SST886C
SST890C

MA-32
ENGINE MAINTENANCE (YD22DDTI)

REMOVAL
1. Remove air duct, air cleaner case and mass air flow sensor assembly. Refer to EM-133, "AIR CLEANER
AND AIR DUCT" .
2. Remove fuel filter protector.
3. Remove fuel hoses from fuel filter bracket.
CAUTION:
Plug the pipe to prevent fuel from draining.
4. Remove fuel filter with fuel filter bracket.
CAUTION:
Do not splash fuel during removal. If fuel is splashed,
immediately wipe it off.
5. Using band-type fuel filter wrench (commercial service tool),
remove fuel filter.
6. Turn fuel filter upside down to drain fuel.
7. Remove drain plug from fuel filter.
INSTALLATION
Install in reverse order of removal, paying attention to following:

Replace O-ring on drain plug with new one.

Screw the fuel filter by hand until packing contacts sealing surface of bracket. Then tighten it by turning
approximately 2/3 turn.

After installation, bleed air from fuel path. Refer to FL-18, "Air Bleeding" .
INSPECTION AFTER INSTALLATION
Make sure there is no fuel leakage at connections in the following steps.

Start the engine and rev it up and check for fuel leaks at connections.
Changing Air Cleaner FilterELS000CG
VISCOUS PAPER TYPE
The viscous paper type air cleaner filter does not require any clean-
ing operation between renewal.
SBIA0135E
SBIA0136E
Fuel filter drain plug:
: 4.9 N·m (0.50 kg-m, 43 in-lb)
PBIC0526E