2005 NISSAN X-TRAIL check

POWER STEERING GEAR AND LINKAGE
PS-21
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Gear Housing Assembly
Check gear housing assembly for damage and scratches (inner wall). Replace if there are.
Outer Socket and Inner Socket
1. Swinging torque

Hook a spring balance at the point shown in the figure and
pull the spring balance. Make sure that the spring balance
reads the specified value when ball stud and inner socket
start to move. Replace outer socket and steering gear assem-
bly if they are outside the standard.
2. Rotating Torque

Make sure that the reading is within the following specified
range using the preload gauge [SST]. Replace outer socket if
the reading is outside the specified value.
3. Axial end play

Apply an axial load of 490 N (50 kg, 111 lb) to ball stud using a
dial indicator. Measure amount of stud movement, and then
make sure that the value is within the following specified
range. Replace outer socket and steering gear assembly if
the measured value is outside the standard.
SGIA0896E
Items Outer socket Inner socket
Measuring point of spring
balanceStud cotter pin mounting holeMeasuring point at * mark shown
in the figure
Swinging torque 0.3 - 2.9 N·m
(0.03 - 0.29 kg-m, 3.0 - 25 in-lb)1.0 - 7.8 N·m
(0.10 - 0.80 kg-m, 9.0 - 69 in-lb)
Spring balance measurement 4.84 - 47.4 N
(0.49 - 4.84 kg, 1.08 - 10.7 lb)5.2 - 41 N
(0.53 - 4.1 kg, 1.17 - 9.07 lb)
Outer socket
rotating torque0.3 - 2.9 N·m
(0.03 - 0.29 kg-m, 3.0 - 25 in-lb)
SGIA0083E
Outer socket : 0.5 mm (0.02 in) or less
Inner socket : 0.2 mm (0.008 in) or less
SGIA0057E

PS-26
POWER STEERING GEAR AND LINKAGE


Twisted point of clamp is in the opposite side of adjusting
screw as shown in the figure (to prevent contact with other
parts).

Bent cut end of the wire toward rack axial as shown in the fig-
ure after twisting the wire 4 to 4.5 turns so that cut end does
not contact with boot.
CAUTION:
Keep gap from cylinder tube 5 mm (0.20 in) or more.
23. Install cylinder tube to gear housing assembly.
24. Adjust inner socket to standard length “L”, and then tighten lock
nut to the specified torque. Refer to PS-18, "
COMPONENT" .
Check length of inner socket “L” again after tightening lock nut.
Make sure that the length is the standard.
CAUTION:
Adjust toe-in after this procedure. Length achieved after
toe-in adjustment is not necessary the above value.
SGIA0214E
SGIA0260J
Inner socket length “L” 169.67 mm (6.68 in)
SGIA0167E

POWER STEERING OIL PUMP
PS-27
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POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceEGS000AF
OIL PUMP PULLEY HYDRAULIC PRESSURE INSPECTION
Before starting following procedure, check tension of belt.
1. Raise vehicle. Connect oil pressure gauge between oil pump
discharge connector and high pressure hose. Then bleed the
hydraulic circuit.
2. Start engine. Run engine until oil temperature reaches 50°C -
80°C (122 - 176°F).
CAUTION:

Leave valve of hydraulic pressure gauge fully open while
starting and running engine. If engine is started with
valve closed, hydraulic pressure in oil pump goes up.
This will relief pressure along with abnormal increase of
oil temperature.

Care must be taken to keep hose clear of belt and other parts when engine is started.
3. Fully close hydraulic pressure gauge valve with engine at idle. Measure relief pressure.
4. After measurement, open valve slowly.
CAUTION:
Never keep valve closed for 10 seconds or longer.

If relief pressure is outside specification, disassemble and service oil pump. Refer to PS-28, "Disas-
sembly and Assembly(QR20DE and QR25DE Engine Models)" , PS-33, "Disassembly and Assembly
(YD22DDTi Engine Model)" .
5. After inspection, remove oil pressure gauge from hydraulic circuit. Add fluid. Be sure to bleed the system
completely. Refer to PS-6, "
Air Bleeding Hydraulic System" .
Removal and Installation (QR20DE and QR25DE Engine Models)EGS000AG
REMOVAL
1. Loosen adjusting screw and oil pump mounting bolt. Then, remove belt.
2. Remove union bolt and hose for oil pump.
3. Remove oil pump bracket attaching bolt.
4. Remove oil pump from vehicle.
INSTALLATION
Paying attention to following items, install in the reverse order of removal.

After installation, adjust belt tension. Refer to EM-13, "DRIVE BELTS" .

After installation, be sure to bleed system. Refer to PS-6, "Air Bleeding Hydraulic System" . Relief oil pressure
Except YD22DDTi models
: 8,000 - 8,800 kPa (81.60 - 89.76 kg/cm
2 , 1,160 - 1,276 psi)
YD22DDTi models
: 8,500 - 9,300 kpa (98 - 104 kg/cm
2 , 1,390 - 1,480 psi)
SST834-H

POWER STEERING OIL PUMP
PS-29
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7. Remove rotor snap ring using a snap ring pliers and remove pul-
ley from casing.
CAUTION:
When removing rotor snap ring, be careful not to damage
pulley shaft.
8. Remove following parts from casing: cartridge, rotor, vane, side
plate (front), flow control valve A, flow control valve spring, and
flow control valve B assembly
CAUTION:
Do not drop flow control A valve and flow control B valve
assembly to floor. If dropped, they may be deformed.
9. Remove inlet connector attaching bolt and remove inlet connector from casing.
10. Remove inlet connector seal from inlet connector.
11. Using a screwdriver or equivalent tool, remove drive shaft seal from casing.
CAUTION:
Be careful not to damage casing surface with screwdriver.
INSPECTION AFTER DISASSEMBLY
Inspecting Casing and Rear Body

Check casing and rear body for internal damage. If rear body is damaged, replace rear body. If casing is
damaged, replace power steering pump assembly.
Cartridge Inspection

Check cartridge for damage. If damaged, cartridge, rotor, and vane must be replaced as a set.
Inspecting Side Plate

Check side plates (front and rear) for damage. If damaged, side plates (front and rear) must be replaced
as a set.
ASSEMBLY
1. Apply multi-purpose grease to lip of drive shaft seal. Using a
drift, install drive shaft seal to casing.
CAUTION:
Drive shaft seal is not reusable. Never reuse drive shaft
seal.
2. If removed dowel pin cannot be inserted to casing by hand, tap
it with hammer.
3. Connect flow control valve A, flow control valve spring and flow
control valve B assembly as shown.
SGIA0059E
SST038A
SGIA0061E

SB-1
SEAT BELTS
H RESTRAINTS
CONTENTS
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SECTION SB
A
B
SB

SEAT BELTS
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precaution for Seat Belt Service .............................. 2
AFTER A COLLISION ........................................... 2
SEAT BELTS .............................................................. 3
Removal and Installation of Front Seat Belt ............. 3
REMOVAL ............................................................. 3
INSTALLATION ..................................................... 3
Removal and Installation of Rear Seat Belt ............. 4
REMOVAL/WITH 2-POINT TYPE REAR CEN-
TER SEAT BELT ................................................... 4
INSTALLATION/WITH 2-POINT TYPE REAR
CENTER SEAT BELT ........................................... 4
REMOVAL/WITH 3-POINT TYPE REAR CEN-
TER SEAT BELT ................................................... 4
INSTALLATION /WITH 3-POINT TYPE REAR
CENTER SEAT BELT ........................................... 5
SEAT BELT WARNING SYSTEM ............................... 6
Component Parts and Harness Connector Location ..... 6System Description ................................................... 6
SEAT BELT OPERATION ...................................... 6
SEAT BELT WARNING CHIME AND SEAT BELT
WARNING LAMP .................................................. 7
Time Chart for Seat Belt Warning Lamp and Chime ..... 7
Schematic ................................................................. 8
Wiring Diagram —S/WARN—/For LHD models ....... 9
Wiring Diagram —S/WARN—/For RHD models ..... 12
Terminal and Reference Value for Time Control Unit ... 15
Work Flow ............................................................... 16
Trouble Diagnosis Chart by Symptom .................... 16
Time Control Unit Power Supply and Ground Circuit
Check ..................................................................... 16
Seat Belt Warning Lamp Power Supply Check ...... 17
Seat Belt Warning Lamp Check (Driver side) ......... 17
Seat belt Warning Lamp Check (Passenger Side) ... 19
Seat Belt Buckle Switch Check .............................. 20
Seat Belt Buckle Switch and Seat Pressure Switch
Check ..................................................................... 22
Vehicle Speed Signal Inspection ............................ 24

SB-2
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EHS000MW
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.
Precaution for Seat Belt ServiceEHS000BE
CAUTION:

Before removing the seat belt pre-tensioner assembly, turn the ignition switch off, disconnect
both battery cables and wait at least 3 minutes.

Do not use electrical test equipment for seat belt pre-tensioner connector.

After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting seat belt pre-ten-
sioner connector, check the system function. Refer to SRS-17, "
SRS Operation Check" .

Do not use disassemble buckle or seat belt assembly.

Replace anchor bolts if they are deformed or worn out.

Never oil tongue and buckle.

If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.

If webbing is cut, frayed, or damaged, replace seat belt assembly.

When replacing seat belt assembly, use a genuine seat belt assembly.
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the col-
lision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt assembly (including anchor bolts) if:

The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).

The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.)

The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt assembly.

Anchor bolts are deformed or worn out.

The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.

SB-16
SEAT BELT WARNING SYSTEM

Work FlowEHS001FQ
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SB-6, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SB-16,
"Trouble Diagnosis Chart by Symptom" .
4. Does power seat system operate normally? If Yes, GO TO 5, If No, GO TO 3.
5. INSPECTION END.
Trouble Diagnosis Chart by SymptomEHS000GS
NOTE:
Always check the “Work Flow” before troubleshooting. Refer to SB-16, "
Work Flow" .
Time Control Unit Power Supply and Ground Circuit CheckEHS001FV
1. CHECK FUSE
Check the following.

Check 10A fuse [No. 5, located in the fuse block (J/B)].

Check 10A fuse [No. 28, located in the fuse block (J/B)].
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect time control unit connector.
3. Check voltage between time control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace time control unit power supply circuit.
Symptom Diagnoses/Service procedure Reference page
Seat belt warning system do not operate. Time control unit power supply and ground checkSB-16
Seat belt warning lamp (driver side) do not
illuminated.1. Seat belt warning lamp check (driver side)SB-172. Seat belt buckle switch checkSB-20
3. If the above system are normal, replace time control unit. —
Seat belt warning lamp (passenger side) do
not illuminated.1. Seat belt warning lamp check (passenger side)SB-19
2. Seat belt buckle switch and seat pressure switch checkSB-22
3. If the above system are normal, replace time control unit. —
Seat belt warning lamp does not illuminated
(both driver side and passenger side) Seat belt warning lamp power supply checkSB-17
Seat belt chime does not activate.(Seat belt
warning lamp is operated) Vehicle speed signal checkSB-24
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M30 1 (L)
GroundIgnition switch OFF Battery voltage
M31 17 (G) Ignition switch ON Battery voltage
PHIA0649E

SEAT BELT WARNING SYSTEM
SB-17
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3. CHECK GROUND CIRCUIT
Check continuity between time control unit harness connector M30
terminal 16 (B/R) and ground.
OK or NG
OK >> Replace time control unit.
NG >> Replace harness or connector.
Seat Belt Warning Lamp Power Supply CheckEHS000GT
1. CHECK FUSE
Check 10A fuse [No.11, located in fuse block (J/B)].
Refer to PG-2, "
POWER SUPPLY ROUTING" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
2, "POWER SUPPLY ROUTING" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector.
2. Turn ignition switch “ON”.
3. Check voltage between combination meter connector M44 ter-
minal 2 (Y/G) and ground.
OK or NG
OK >> Replace combination meter.
NG >> Repair or replace harness between combination meter
and fuse block (J/B).
Seat Belt Warning Lamp Check (Driver side)EHS001DO
1. CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector.
3. Connect battery power supply to combination meter connector
M44 terminals 2 and 10 (LHD models) 37 (RHD models), and
check the illumination.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.16 (B/R) - Ground : Continuity should exist.
PIIA8641E
2 (Y/G) – Ground : Battery voltage.
PHIA0641E
LHD models
2 (BAT+) – 10 (BAT-)
RHD models
2 (BAT+) – 37 (BAT-)
PHIA0642E