power steering NISSAN X-TRAIL 2003 Electronic Service Manual

POWER STEERING OIL PRESSURE SWITCH
EC-821
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Wiring DiagramEBS003PU
TBWA0115E

EC-822
[YD]
POWER STEERING OIL PRESSURE SWITCH
Diagnostic Procedure
EBS003PV
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine.
2. Check “PW/ST SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECK POWER STEERING OIL PRESSURE SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect power steering oil pressure switch harness connec-
tor.
3. Check harness continuity between power steering oil pressure
switch terminal 2 and engine ground. Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or con-
nectors.
3.CHECK POWER STEERING OIL PRESSURE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND
SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal E12 and power steering oil pressure switch terminal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK POWER STEERING OIL PRESSURE SWITCH
Refer toEC-823, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace power steering oil pressure switch.
Conditions PW/ST SIGNAL
Steering in neutral position OFF
Steering is turned ON
PBIB0434E
Continuity should exist.
PBIB0375E
Continuity should exist.

POWER STEERING OIL PRESSURE SWITCH
EC-823
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EC
5.CHECK INTERMITTENT INCIDENT
Refer toEC-699, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS003PW
POWER STEERING OIL PRESSURE SWITCH
1. Disconnect power steering oil pressure switch harness connector and then start engine.
2. Check continuity between power steering oil pressure switch ter-
minal 1 and 2 under the following conditions.
Removal and InstallationEBS008ZH
POWER STEERING OIL PRESSURE SWITCH
Refer toPS-33, "HYDRAULIC LINE".
Conditions Continuity
Steering wheel is being fully turned. Yes
Steering wheel is not being turned. No
PBIB0435E

INTAKE MANIFOLD
EM-19
[QR20DE]
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8. Remove intake manifold collector mounting bolts on the support.
9. Loosen mounting bolts and nuts in order from 5 to 1, and
remove intake manifold collector.
lDisregard 6 when loosening.
10. Disconnect harness and power steering piping from intake man-
ifold and fuel tube assembly, and move them a side.
11. Loosen bolts in reverse order of illustration to remove intake
manifold assembly.
lDisregard No.6 when loosening.
INSPECTION AFTER REMOVAL
Surface Distortion
lUsing straightedge and feeler gauge, inspect surface distortion
of intake manifold collector and intake manifold surface.
INSTALLATION
lInstall in the reverse order of removal paying attention to the following.
Tightening Intake Manifold bolts and nuts
lTighten in numerical order as shown in the figure.
NOTE:
No.6 means double tightening of bolt 1.
KBIA0234E
KBIA0233E
Standard : 0.1 mm (0.004 in)
KBIA0235E
KBIA0233E

CAMSHAFT
EM-33
[QR20DE]
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CAMSHAFTPFP:13001
Removal and InstallationEBS009R0
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
lThe following procedure describes removing and installing camshaft without removing front cover. If the
front cover is removed or installed, removal of No.1 camshaft bracket is easier before step 8. Installation is
easier after step 3. Regarding removal and installation of front cover, refer toEM-43, "
TIMING CHAIN".
1. Release fuel pressure. Refer toEC-34, "
FUEL PRESSURE RELEASE",EC-399, "FUEL PRESSURE
RELEASE".
2. Remove parts listed below.
lIgnition Coil; Refer toEM-27, "Removal and Installation".
lRocker cover; Refer toEM-31, "Removal and Installation".
3. Remove power steering reservoir tank.
4. Remove Intake valve timing control cover.
KBIA0244E
1 Camshaft bracket 2 Washer 3 Front cover
4 Chain guide 5 Chain tensioner 6 O-ring
7 Spring 8 Chain tensioner plunger 9Intake valve timing control solenoid
valve
10 Intake valve timing control cover 11 Camshaft sprocket (EXH) 12 Camshaft sprocket (INT)
13 Valve lifter 14 Camshaft (EXH) 15 Camshaft (INT)
16 Camshaft position sensor (PHASE)

EM-44
[QR20DE]
TIMING CHAIN
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
1. Remove the parts listed below.
lEngine hood
lUndercover
lPCV hose
lIgnition coil; Refer toEM-27, "Removal and Installation".
lRocker cover; Refer toEM-31, "Removal and Installation".
lEngine coolant reservoir tank
lAuxiliary drive belt; Refer toEM-13, "Removal and Installation".
lAlternator
lAuxiliary drive belt auto-tensioner; Refer toEM-14, "Removal and Installation of Auxiliary Drive Belt
Auto- tensioner".
lExhaust front tube; Refer toEX-2, "EXHAUST SYSTEM".
2. Remove A/C compressor from engine. Temporarily secure A/C compressor to vehicle side with a rope to
avoid putting a load on them.
3. Remove bracket mounting bolts for fixing A/C piping on right strut housing and exhaust manifold cover.
Doing so simplifies moving.
4. Move power steering pump with piping connected, and secure it to vehicle side temporarily.
5. Pull power steering reservoir tank out of brackets to move power steering piping.
CAUTION:
lTo avoid power steering fluid leakage, temporarily fix reservoir tank vertically.
6. Suspend engine with a hoist, and support the engine posture.
For installation of engine slingers, refer toEM-61, "
ENGINE ASSEMBLY"
7. Remove RH engine mount insulator.
8. Remove center member and rear engine mounting bracket.
9. Drain engine oil.
10. Remove oil pan upper and lower, and oil strainer. Refer toEM-24, "
Removal and Installation".
11. Remove Intake valve timing control cover.
a. Loosen bolts in reverse order shown in the figure.
b. Remove the cover using Tool (Seal cutter).
12. Pull chain guide between camshaft sprockets out through front
cover.
13. Set No.1 cylinder at TDC on its compression stroke with the fol-
lowing procedure.
a. Rotate crankshaft pulley clockwise and align mating marks to
timid indicator on front cover.
KBIA0085E
KBIA0190E

EM-50
[QR20DE]
TIMING CHAIN
6. Install front oil seal to front cover.
lUsing a drift of 56 mm (2.20in) dia, press oil seal in until it is
flush with front end surface of front cover.
CAUTION:
lBe careful not to cause damage or burr to circumfer-
ence of oil seal.
7. Install front cover with the following procedure.
a. Install O-rings to cylinder head and cylinder block.
b. Apply liquid gasket to positions specified in the figure.
lApplication instruction differs depending on the part.
c. Make sure that mating marks of timing chain and each sprocket
are still aligned. Then install front cover.
CAUTION:
lDo not let air conditioning and power steering piping
interfere with upper part of front cover.
lBe careful not to damage front oil seal by interference
with front end of crankshaft.
d. Tighten mounting bolts in the numerical order shown in the fig-
ure.
e. After all bolts are tightened, retighten them to specified torque.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking to
surface for fitting oil pan.
8. Install chain guide between camshaft sprockets.
KBIA0081E
KBIA0082E
KBIA0083E

EM-62
[QR20DE]
ENGINE ASSEMBLY
1. Release fuel pressure. Refer toEC-34, "FUEL PRESSURE RELEASE"(WITH EURO-OBD),EC-399,
"FUEL PRESSURE RELEASE"(WITHOUT EURO-OBD).
2. Remove engine hood.
3. Drain coolant from radiator drain plug.
4. Remove the following parts.
lLH/RH under cover
lLH/RH Front wheel
lBattery
lAuxiliary drive belt; Refer toEM-14, "Removal and Installation of Auxiliary Drive Belt Auto- tensioner".
lAir duct and air cleaner case assembly; Refer toEM-15, "Removal and Installation".
lAlternator
lRadiator and radiator fan assembly; Refer toCO-12, "RADIATOR".
5. Disconnect engine room harness from the engine side and set it aside for easier work.
6. Disconnect all the body-side vacuum hoses and air hoses at engine side.
Engine room LH
7. Disconnect fuel hose, and plug it to prevent fuel from draining. Refer toEM-17, "
INTAKE MANIFOLD"
8. Disconnect heater hose, and install plug it to prevent engine coolant from draining.
9. Disconnect select cable from transaxle (A/T models).
10. Remove clutch operating cylinder from transaxle, and move it aside (M/T models).
11. Disconnect shift cable from transaxle (M/T models).
Engine room RH
12. Remove engine coolant reservoir tank.
13. Remove air conditioner compressor with piping connected from engine. Temporarily secure it on body
with a rope to avoid putting load on it.
Vehicle underbody
14. Remove exhaust front tube.
15. Remove propeller shaft.
16. Remove steering shaft from steering gear.
17. Disconnect power steering fluid cooler piping at a point between body and engine.
18. Remove ABS sensor from brake caliper.
19. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it.
20. Remove LH/RH suspension from steering knuckle under strut.
Removal
21. Install engine slingers into front left of cylinder head and rear right of cylinder head.
lUse alternator bracket mounting bolt holes for the frontside.
22. Lift with hoist and secure the engine in position.Slinger bolts:
Front: 51.0 - 64.7 N·m (5.2 - 6.6 kg-m, 38 - 47 ft-lb)
Rear: 24.5 - 31.4 N·m (2.5 - 3.2 kg-m, 18 - 23 ft-lb)
KBIA0255E

ENGINE ASSEMBLY
EM-63
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lUse a manual lift table caddy or equivalently rigid tool such as a
jack or trestle. Securely support bottom of engine and transaxle,
and simultaneously adjust hoist tension.
CAUTION:
lPut a piece of wood or something similar as the support-
ing surface, secure a completely stable condition.
23. Remove RH engine mounting insulator.
24. Pull LH engine mounting through-bolt out.
25. Remove mounting bolts at front end of center member.
26. Remove front suspension member mounting bolts and nuts.
27. Remove engine, transaxle and transfer assembly with suspen-
sion member from vehicle downward by carefully operating sup-
porting tools.
CAUTION:
lDuring the operation, make sure that no part interferes
with body side.
lBefore and during this lifting, always check if any har-
nesses are left connected.
lDuring the removal operation, always be careful to pre-
vent vehicle from falling off the lift due to changes in the center of gravity.
lIf necessary, support vehicle by setting a jack or equivalent tool at the rear.
28. Remove power steering pump with piping connected from engine. Move it aside on suspension member.
29. Remove front engine mounting and rear engine mounting through-bolts to remove suspension member.
30. Remove starter motor.
31. Separate engine and transaxle.
INSTALLATION
Install in the reverse order of removal.
lDo not allow oil to get on mounting insulator. Be careful not to damage mounting insulator.
lWhen installation directions are specified, install parts according to the direction marks on them referring
to components illustration.
lMake sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
INSPECTION AFTER INSTALLATION
lBefore starting engine check the levels of coolant, lubrications and working oils. If less than required
quantity, fill to the specified level.
lRun engine to check for unusual noise and vibration.
lWarm up engine thoroughly to make sure there is no leakage of coolant, lubricants, working oil, fuel and
exhaust gas.
lBleed air from passages in pipes and tubes of applicable lines.
KBIA0256E
KBIA0257E
KBIA0270E

EM-138
[YD22DDTi]
FUEL SUPPLY PUMP
FUEL SUPPLY PUMP
PFP:00018
Removal and InstallationEBS00CBL
CAUTION:
lbefore removing and installing fuel supply pump, be sure to remove sprocket. Do not loosen or
remove installation nut in the center of fuel supply pump. If loosened or removed, replace fuel
supply pump.
lAfter removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike
piston heads.
lWhen installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting
surfaces with new engine oil.
lApply new engine oil to parts marked in illustration before installation.
REMOVAL
1. Remove coolant reservoir tank.
2. Remove charge air cooler. Refer toEM-114, "
Removal and Installation".
3. Remove RH engine mount insulator and bracket. Refer toEM-184, "
Removal and Installation".
4. Pull power steering reservoir tank out of brackets to move power steering piping.
CAUTION:
To avoid removing power steering reservoir tank out of brackets move it with power steering pip-
ing aside.
1. Washer 2. Fuel supply pump sprocket 3. Fuel supply pump
4. Fuel supply pump rear bracket 5. Fuel connector (Feed side) 6. Fuel connector (Return side)
SBIA0213E