engine NISSAN X-TRAIL 2003 Service Repair Manual

PSP SWITCH
EC-1485
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Diagnostic ProcedureEBS0126E
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 PRESSURE SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect power steering pressure switch harness connector.
3. Check harness continuity between power steering pressure
switch terminal 2 and 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 PRESSURE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 111 and power steering 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 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M63, F30

Harness for open and short between power steering pressure switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
Conditions PW/ST SIGNAL
Steering wheel is in neutral position OFF
Steering wheel is turned ON
PBIB0434E
Continuity should exist.
PBIB1904E
Continuity should exist.

EC-1486
[YD (WITHOUT EURO-OBD)]
PSP SWITCH

5. CHECK POWER STEERING PRESSURE SWITCH
Refer to EC-1486, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace power steering pressure switch.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1260, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS0126F
POWER STEERING PRESSURE SWITCH
1. Disconnect power steering pressure switch harness connector and then start engine.
2. Check continuity between power steering pressure switch termi-
nal 1 and 2 under the following conditions.
Removal and InstallationEBS0128A
Refer to PS-34, "HYDRAULIC LINE" .
Conditions Continuity
Steering wheel is being fully turned. Yes
Steering wheel is not being turned. No
MBIB0624E

FUEL TRANSPORT PUMP
EC-1487
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

FUEL TRANSPORT PUMPPFP:17020
DescriptionEBS0126G
SYSTEM DESCRIPTION
Fuel supply entrance of fuel tank is at the left side of fuel tank. The duel at the right side of the fuel tank is sent
to the left side of the fuel tank by fuel transport pump.
When the ECM receives engine revolution signal from the crankshaft position sensor, it knows that the engine
is rotating, and causes the pump operate. If the remainder of the fuel at the right side of the fuel tank
decreases, fuel level switch sends a signal to the ECM. When the ECM receives a signal from the fuel level
switch, the ECM stops the operation of the pump.
The ECM does not directly drive the fuel transport pump. It controls the ON/OFF fuel transport pump relay,
which in turn controls the fuel transport pump.
COMPONENT DESCRIPTION
Fuel Transport Pump
Fuel transport pump sends the fuel from right side of fuel tank to left
side.
Fuel Level Switch
Fuel level switch is assembled in sub fuel level sensor unit. When the remainder of the fuel at the right side of
the fuel tank is less than specified value, the switch is turned OFF.
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor Engine speed
Fuel transport pump control Fuel transport pump relay
Fuel level switch Fuel level
Condition Fuel transport pump operation
Engine is running.Operates
Engine is stopped.Stops
The remainder of the fuel in the fuel tank is less than specified value. Stops
PBIB1887E
PBIB0469E

EC-1488
[YD (WITHOUT EURO-OBD)]
FUEL TRANSPORT PUMP

ECM Terminals and Reference ValueEBS0126H
Specification data are reference values, and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
14 W/PU Fuel level switch[Ignition switch ON]

Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]

No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)
39 B/OR Fuel transport pump relay[Engine is running]

Some fuel is in the fuel tankApproximately 0V
[Engine is running]

No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)

FUEL TRANSPORT PUMP
EC-1491
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Diagnostic ProcedureEBS0126J
1. CHECK OVERALL FUNCTION
1. Turn ignition switch OFF.
2. Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
3. Disconnect sub fuel level sensor unit harness connector.
4. Remove sub fuel level sensor unit.
5. Reconnect sub fuel level sensor unit harness connector.
6. Soak fuel level switch in fuel and check operating sound of fuel
transport pump.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK FUEL TRASPORT PUMP FUNCTION
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Install suitable harness between ECM harness connector termi-
nal 39 and ground.
4. Turn ignition switch ON.
5. Listen the fuel transport pump operating sound.
OK or NG
OK >> GO TO 11.
NG >> GO TO 3.
PBIB1944E
Operating sound should exist.
PBIB2015E
Operating sound should exist.
PBIB2016E

FUEL TRANSPORT PUMP
EC-1495
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

FUEL TRANSPORT PUMP
1. Remove fuel transport pump.
2. Apply battery voltage between fuel transport pump terminal 1 and 2.
3. Check operating sound of fuel transport pump under the following conditions.
4. Listen fuel transport pump operating sound.
FUEL LEVEL SWITCH
1. Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
2. Check continuity between sub fuel level sensor unit terminal 2
and 4 under the following conditions.
Removal and InstallationEBS0126L
FUEL TRANSPORT PUMP
Refer to FL-23, "FUEL TANK" .
SUB FUEL LEVEL SENSOR UNIT
Refer to FL-19, "FUEL LEVEL SENSOR UNIT" .
Conditions Operating sound
12V direct current supply between fuel transport pump
terminals 1 and 2Ye s
No current supply No
Conditions Continuity
Fuel level switch is soaked in fuel. Yes
Fuel level switch is not soaked in fuel. No
PBIB2015E

EC-1500
[YD (WITHOUT EURO-OBD)]
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00100
General SpecificationsEBS0126P
Mass Air Flow SensorEBS0126Q
Engine Coolant Temperature SensorEBS0126R
Fuel Rail Pressure SensorEBS0126S
Glow PlugEBS0126T
EGR Volume Control ValveEBS0126U
Crankshaft Position Sensor EBS0126V
Refer to EC-1356, "Component Inspection" .
Camshaft Position Sensor EBS0126W
Refer to EC-1368, "Component Inspection" .
EngineYD22DDTi
Idle speed725 ± 25 rpm
Maximum engine speed 4,900 rpm
Supply voltageBattery voltage (11 - 14V)
Ignition switch ON (Engine stopped.) Approx. 0.4V
Idle (Engine is warmed up to normal operating temperature.) 1.5 - 2.0V
2,000 rpm (Engine is warmed up to normal operating tempera-
ture.)2.2 - 2.7V
Temperature °C (°F)Resistance kΩ
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Supply voltageApproximately 5V
Idle (Engine is warmed up to normal operating temperature.) 1.7 - 2.0V
2,000 rpm (Engine is warmed up to normal operating tempera-
ture.)2.0 - 2.3V
Resistance [at 25°C (77°F)] Ω Approximately 0.8
Resistance [at 25°C (77°F)] Ω13 - 17

FL-1
FUEL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION
A
FL

FUEL SYSTEM
QR
PREPARATION ........................................................... 2
Commercial Service Tools ........................................ 2
FUEL SYSTEM ........................................................... 3
Checking Fuel Lines ................................................. 3
General Precautions ................................................ 3
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND
FUEL PUMP ASSEMBLY ........................................... 4
Removal and Installation .......................................... 4
REMOVAL ............................................................. 4
INSPECTION AFTER REMOVAL ......................... 7
INSTALLATION ..................................................... 7
INSPECTION AFTER INSTALLATION ................. 8
Disassembly and Assembly ..................................... 8
DISASSEMBLY ..................................................... 8
ASSEMBLY ........................................................... 9
FUEL TANK ...............................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 13
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 14
Standard and Limit ................................................. 14
FUEL TANK ......................................................... 14
Tightening Torque ................................................... 14
YD22DDTi
PREPARATION ......................................................... 15
Commercial Service Tools ...................................... 15
FUEL SYSTEM ......................................................... 16
Checking Fuel Lines ............................................... 16
General Precautions ............................................... 16
FUEL FILTER ............................................................ 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 17
Air Bleeding ............................................................ 18
Draining Water from Fuel Filter .............................. 18
FUEL LEVEL SENSOR UNIT ................................... 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSPECTION AFTER REMOVAL ....................... 22
INSTALLATION ................................................... 22
INSPECTION AFTER INSTALLATION ................ 22
FUEL TANK .............................................................. 23
Removal and Installation ........................................ 23
REMOVAL ........................................................... 23
INSTALLATION ................................................... 24
INSPECTION AFTER INSTALLATION ................ 25
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 26
Standard and Limit .................................................. 26
Tightening Torque ................................................... 26

FUEL SYSTEM
FL-3
[QR]
C
D
E
F
G
H
I
J
K
L
MA
FL

FUEL SYSTEMPFP:17503
Checking Fuel LinesEBS00KOS
Inspect fuel lines, filler cap and tank for improper attachment, leaks,
cracks, damage, loose connections, chafing or deterioration.
If necessary, repair or replace damaged parts.
General PrecautionsEBS011T7
WARNING:
When replacing fuel line parts, be sure to observe the following.

Put a “CAUTION: INFLAMMABLE” sign in the workshop.

Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.

Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:

Before removing fuel line parts, perform the following procedures:
–Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
–Release fuel pressure from the fuel lines. Refer to EC-48, "FUEL PRESSURE RELEASE" (WITH
EURO-OBD) or EC-510, "
FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
–Disconnect negative battery terminal.

Always replace O-rings and clamps with new ones.

Do not kink or twist tubes when they are being installed.

Do not tighten hose clamps excessively to avoid damaging hoses.

After connecting fuel tube quick connectors, make sure
quick connectors are secure.
Ensure that connector and resin tube do not contact any
adjacent parts.

After installing tubes, check if there are no fuel leaks at con-
nections in the following steps.
–Apply fuel pressure to fuel lines with turning ignition switch
“ON” (with engine stopped). Then check for fuel leaks at
connections.
–Start engine and rev it up and check for fuel leaks at con-
nections.

For servicing “Evaporative Emission System” parts, refer to
EC-473, "
EVAPORATIVE EMISSION SYSTEM" (WITH EURO-
ODB) or EC-865, "
EVAPORATIVE EMISSION SYSTEM"
(WITHOUT EURO-OBD).
SMA803A
SBIA0504E

FL-8
[QR]
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY


Pull the tube and the connector to make sure they are
securely connected.
Inspection Hole Cover
Install inspection hole covers with the front mark (arrow) facing front of the vehicle.
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
1. Turn ignition switch “ON” (with engine stopped), then check connections for leaks by applying fuel pres-
sure to fuel piping.
2. Start engine and let it idle and make sure there are no fuel leaks at the fuel system connections.
Disassembly and AssemblyEBS00KOV
CAUTION:
Sub fuel level sensor unit cannot be disassembled and should be replaced as a unit.
DISASSEMBLY
1. Remove fuel pump removing bracket as follows:
PBIC1653E
1. Fuel filter 2. O-ring 3. Clip
4. Pressure regulator 5. O-ring 6. Fuel level sensor unit
7. Bracket 8. Rubber 9. Fuel pump
10. Packing
PBIC2259E