2003 NISSAN X-TRAIL check engine light

GI-24
SERVICE INFORMATION FOR ELECTRICAL INCIDENT


Heat sensitive

Freezing

Water intrusion

Electrical load

Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the
problem.
Vehicle Vibration
The problem may occur or become worse while driving on a rough road or when engine is vibrating (idle with
A/C on). In such a case, you will want to check for a vibration related condition. Refer to the following illustra-
tion.
CONNECTORS & HARNESS
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently
shake each connector and harness while monitoring the system for the incident you are trying to duplicate.
This test may indicate a loose or poor electrical connection.
HINT
Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector termi-
nals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs inter-
mittently, perhaps the problem is caused by corrosion. It is a good idea to disconnect, inspect and clean the
terminals on related connectors in the system.
SENSORS & RELAYS
Gently apply a slight vibration to sensors and relays in the system you are inspecting.
This test may indicate a loose or poorly mounted sensor or relay.
ENGINE COMPARTMENT
There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the
things to check for are:

Connectors not fully seated.

Wiring harness not long enough and is being stressed due to engine vibrations or rocking.

Wires laying across brackets or moving components.

Loose, dirty or corroded ground wires.

Wires routed too close to hot components.
To inspect components under the hood, start by verifying the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previously explained. Using the wiring diagrams inspect the
wiring for continuity.
BEHIND THE INSTRUMENT PANEL
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
SGI839

GI-34
CONSULT-II CHECKING SYSTEM

Checking Equipment EAS000GB
When ordering the following equipment, contact your NISSAN/INFINITI distributor.
NOTE:

The CONSULT-II must be used in conjunction with a program card.
CONSULT-II does not require loading (Initialization) procedure.

Be sure the CONSULT-II is turned off before installing or removing a program card.
CAUTION:

If CONSULT-ll is used with no connection of CONSULT-ll CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.

If CONVERTER is not connected with CONSULT-ll, vehicle occur the "FAIL-SAFE MODE" which is
"LIGHT UP the HEADLIGHT" and/or "Cooling FAN ROTATING" when CONSULT-ll is started.
CONSULT-II Start ProcedureEAS0017Y
1. Turn off the ignition switch.
2. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
3. Turn on the ignition switch.
4. Touch “START (NISSAN BASED VHCL)” or “System Shortcut”
(eg : Engine) on the screen.
Tool nameDescription
NISSAN CONSULT-II
1. CONSULT-II unit (Tester internal soft: Resident
version 3.3.0) and accessories
2. Program card AED03E and AEN02C-1 (For
NATS)
3. CONSULT-II CONVERTER
SAIA0362E
PAIA0070E
SKIA3098E

TERMINOLOGY
GI-47
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Exhaust gas recirculation control-BPT
valveEGRC-BPT valve BPT valve
Exhaust gas recirculation control-solenoid
valveEGRC-solenoid valve EGR control solenoid valve
Exhaust gas recirculation temperature sen-
sor
EGRT sensor Exhaust gas temperature sensor
EGR temperature sensor
Flash electrically erasable programmable
read only memoryFEEPROM ***
Flash erasable programmable read only
memoryFEPROM ***
Flexible fuel sensor FFS ***
Flexible fuel system FF system ***
Fuel pressure regulator *** Pressure regulator
Fuel pressure regulator control solenoid
valve*** PRVR control solenoid valve
Fuel trim FT ***
Heated Oxygen sensor HO2S Exhaust gas sensor
Idle air control system IAC system Idle speed control
Idle air control valve-air regulator IACV-air regulator Air regulator
Idle air control valve-auxiliary air control
valveIACV-AAC valve Auxiliary air control (AAC) valve
Idle air control valve-FICD solenoid valve IACV-FICD solenoid valve FICD solenoid valve
Idle air control valve-idle up control sole-
noid valveIACV-idle up control solenoid valve Idle up control solenoid valve
Idle speed control-FI pot ISC-FI pot FI pot
Idle speed control system ISC system ***
Ignition control IC ***
Ignition control module ICM ***
Indirect fuel injection system IFI system ***
Intake air IA Air
Intake air temperature sensor IAT sensor Air temperature sensor
Knock *** Detonation
Knock sensor KS Detonation sensor
Malfunction indicator lamp MIL Check engine light
Manifold absolute pressure MAP ***
Manifold absolute pressure sensor MAPS ***
Manifold differential pressure MDP ***
Manifold differential pressure sensor MDPS ***
Manifold surface temperature MST ***
Manifold surface temperature sensor MSTS ***
Manifold vacuum zone MVZ ***
Manifold vacuum zone sensor MVZS ***
Mass air flow sensor MAFS Air flow meter
Mixture control solenoid valve MC solenoid valve Air-fuel ratio control solenoid valve
Multiport fuel injection System MFI system Fuel injection controlNEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

FUEL INJECTOR AND FUEL TUBE
EM-35
[QR]
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2. Install fuel injector to fuel tube with the following procedure:
a. Insert clip into clip mounting groove on fuel injector.

Insert clip so that lug “A” of fuel injector matches notch “A” of
clip.
CAUTION:

Do not reuse clip. Replace it with a new one.

Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube with clip attached.

Insert it while matching it to the axial center.

Insert fuel injector so that lug “B” of fuel tube matches notch
“B” of clip.

Make sure that fuel tube flange is securely fixed in flange fix-
ing groove on clip.
c. Make sure that installation is complete by checking that fuel
injector does not rotate or come off.
3. From the engine rear side, set fuel tube and fuel injector assembly at its position for installation on intake
manifold.
CAUTION:
For installation, be careful not to interfere with fuel injector nozzle.
4. Set fuel tube protector onto fuel tube.
5. Tighten mounting bolts with the following procedure.

Tighten bolts evenly in two steps in numerical order as shown
in the figure.
6. Connect sub-harness for fuel injector.
7. Note the following, and connect quick connectors at engine side and vehicle side to install fuel feed hose.
NOTE:
There is quick connector for the engine side and for the vehicle side, and they have different shapes. But
connection is same procedure. The following procedure shows the engine side.
a. Check the connection for foreign material and damage.
b. Align center to insert quick connector straightly into fuel tube.

Insert fuel tube into quick connector until the top spool on fuel
tube is inserted completely and the second level spool is posi-
tioned slightly below quick connector bottom end.
CAUTION:

Hold “A” position in the figure when inserting fuel tube
into quick connector.

Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
SBIA0439E
1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step
: 23.6 N·m (2.4 kg-m, 17 ft-lb)
PBIC2180E
KBIA0272E

EM-40
[QR]
FUEL INJECTOR AND FUEL TUBE

2. Install fuel injector to fuel tube with the following procedure:
a. Insert clip into clip mounting groove on fuel injector.

Insert clip so that lug “A” of fuel injector matches notch “A” of
clip.
CAUTION:

Do not reuse clip. Replace it with a new one.

Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube with clip attached.

Insert it while matching it to the axial center.

Insert fuel injector so that lug “B” of fuel tube matches notch
“B” of clip.

Make sure that fuel tube flange is securely fixed in flange fix-
ing groove on clip.
c. Make sure that installation is complete by checking that fuel
injector does not rotate or come off.
3. Install fuel tube and fuel injector assembly with the following procedure:
a. Insert the tip of each fuel injector into intake manifold.
b. Tighten mounting bolts evenly in two steps in numerical order as
shown in the figure.
4. Connect sub-harness for fuel injector.
5. Install intake manifold collector. Refer to EM-20, "
Removal and Installation (QR25DE)" .
6. Note the following, and connect quick connectors at engine side and vehicle side to install fuel feed hose.
NOTE:
There is quick connector for the engine side and for the vehicle side, and they have different shapes. But
connection is same procedure. The following procedure shows the engine side.
a. Check the connection for foreign material and damage.
b. Align center to insert quick connector straightly into fuel tube.
NOTE:
The figure shows engine side as an example.

Insert fuel tube into quick connector until the top spool on fuel
tube is inserted completely and the second level spool is posi-
tioned slightly below quick connector bottom end.
CAUTION:

Hold “A” position in the figure when inserting fuel tube
into quick connector.

Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.

Insert until you hear a “click” sound and actually feel the engagement.
SBIA0439E
1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step
: 23.6 N·m (2.4 kg-m, 17 ft-lb)
KBIA0239E
KBIA0272E

VACUUM PUMP
EM-155
[YD22DDTi]
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5. Install cylinder head rear cover plate.

Apply a continuous bead of liquid gasket with the tube presser
(special service tool: WS39930000) to area shown in the fig-
ure.
Use Genuine Liquid Gasket or equivalent.

Attaching should be done within 5 minutes after coating.
6. Install in reverse order of removal.

When vacuum hose is connected, insert it securely by at least 15 mm (0.59 in).
CAUTION:
Do not start engine with vacuum circuit being open. If engine is started and vehicle is running while
vacuum pump is open (with vacuum hose disconnected), blow-by flow rate will increase and engine
may be damaged.
INSPECTION AFTER INSTALLATION
Check generated vacuum satisfies the specification at idle speed. Refer to EM-153, "INSPECTION BEFORE
REMOVAL" .
Disassembly and AssemblyEBS00LRN
DISASSEMBLY
1. Push on chain guide lightly so that clearance between drive chain and chain guide part reaches 0 mm (0
in). Then loosen chain guide mounting bolts.
2. Remove drive chain from rear camshaft sprocket and vacuum pump sprocket.
SBIA0169E
1. Rear camshaft sprocket 2. Drive chain 3. Chain guide
4. Cylinder head rear cover 5. Vacuum pump 6. O-ring
PBIC2316E

EM-194
[YD22DDTi]
PRIMARY TIMING CHAIN

a. Apply a continuous bead of liquid gasket with the tube presser
(special service tool: WS39930000) as shown in the figure.
A: Leave the start and end areas of the bead slightly protruding
from the surface.
B: Apply liquid gasket along upper end surface of oil pump hous-
ing.
b. Install oil pump drive spacer to crankshaft.

Install with the front mark (punched mark) facing the front of
the engine.
c. Install O-ring into the groove of rear chain case.
d. Install oil pump housing.

When installing, align the inner rotor in the direction of the two facing flats of oil pump drive spacer.

When installing, align the dowel pin with the pin hole.
e. Tighten fixing bolts in numerical order shown in the figure.
f. After tightening all the bolts, re-tighten in the same order.
14. Check gaps on upper oil pan mounting surface.

Using straightedge and feeler gauge, measure gaps between
the locations of the following parts:

If the measured value is out of the standard, install again.
15. Install crankshaft pulley.
a. Install crankshaft pulley to crankshaft.
JEM144G
JEM145G
JEM133G
Oil pump housing and rear chain case:
Standard : – 0.09 to 0.09 mm (– 0.0035 to 0.0035 in)
Rear chain case and cylinder block:
Standard : – 0.19 to 0.07 mm (– 0.0075 to 0.0028 in)
JEM146G

CYLINDER BLOCK
EM-233
[YD22DDTi]
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MAIN BEARING OIL CLEARANCE
Method by Measurement

Install main bearings to cylinder block and bearing cap, and
tighten the bolts to the specified torque. Refer to EM-217,
"ASSEMBLY" . Then, measure the inner diameter of main bear-
ings.
(Bearing clearance) = (Bearing inner diameter) − (Crankshaft
journal outer diameter)

If out of the standard, check main bearing housing inner diame-
ter and crankshaft journal outer diameter, and select appropriate
main bearing to adjust clearance to specifications. Refer to EM-
224, "HOW TO SELECT MAIN BEARING" .
Method of Using Plastigage

Remove contamination such as engine oil and dust completely
from crankshaft journals and each bearing surface.

Cut plastigage slightly shorter than bearing width. Place it in
crankshaft turning direction, avoiding oil holes.

Install main bearings and bearing cap and tighten to the speci-
fied torque. Refer to EM-217, "
ASSEMBLY" for the tightening
procedure.
CAUTION:
Do not rotate crankshaft.

Remove main bearings and bearing caps, and measure plasti-
gage width using scale on plastigage bag.
NOTE:
If out of specification, take same action mentioned in “Method by Measurement”.
CRUSH HEIGHT OF MAIN BEARING

When bearing cap is removed after being tightened to the speci-
fied torque with main bearings installed, the tip end of bearing
must protrude. Refer to EM-217, "
ASSEMBLY" .

If out of the standard, replace main bearings.
CRUSH HEIGHT OF CONNECTING ROD BEARING

When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings
installed, the tip end of bearing must protrude. Refer to EM-217,
"ASSEMBLY" .

If out of the standard, replace connecting rod bearings.Standard : 0.039 - 0.066 mm (0.0015 - 0.0026 in)
PBIC1644E
EM142
Standard : There must be crush height.
SEM502G
Standard : There must be crush height.
PBIC1646E