2005 NISSAN X-TRAIL Sensors

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

CONSULT-II CHECKING SYSTEM
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CONSULT-II CHECKING SYSTEMPFP:00000
DescriptionEAS000G8

CONSULT-II is a hand-held type tester. When it is connected with a diagnostic connector equipped on the
vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various
kinds of diagnostic tests.

Refer to “CONSULT-II Software Operation Manual” for more information.
Function and System Application EAS000G9
x: Applicable
*1: Nissan Anti-Theft System
*2: Gasoline engine models
*3: This item is indicated, but it is what it does not use.
Nickel Metal Hydride Battery Replacement EAS000GA
CONSULT-II contains a nickel metal hydride battery. When replacing the battery obey the following:
WARNING:
Replace the nickel metal hydride battery with Genuine CONSULT-II battery only. Use of another bat-
tery may present a risk of fire or explosion. The battery may present a fire or chemical burn hazard if
mistreated. Do not recharge, disassemble or dispose of in fire.
Keep the battery out of reach of children and discard used battery conforming to the local regulations.
Diagnostic test
modeFunction
ENGINE
A/T
AIR BAG
ABS
ABS (Including ESP)
ALL MODE AWD/ 4WD
NATS*
1
HEADLAMP LEVELIZER
Work supportThis mode enables a technician to adjust some devices faster and more
accurately by following the indications on CONSULT-II.x*2x- -x- -x
Self-diagnostic
resultsSelf-diagnostic results can be read and erased quickly. x x x x x x x x
Trouble diagnos-
tic recordCurrent self-diagnostic results and all trouble diagnostic records previously
stored can be read.--x-----
Data monitor Input/Output data in the ECU can be read. x x - x x x - x
Active testDiagnostic Test Mode in which CONSULT-II drives some actuators apart
from the ECU and also shifts some parameters in a specified range.x - - xxx -x
CAN diagnosis
support monitorThe communication condition of CAN communication line can be indicated. x x - x x x - -
DTC confirmationThe results of SRT (System Readiness Test) and the self-diagnosis status/
result can be confirmed.x*
2-------
DTC work supportThe operating condition to confirm Diagnosis Trouble Codes can be
selected.- x------
ECU (ECM/TCM)
part numberECU (ECM/TCM) part number can be read. x x - x x x - x
ECU discrimi-
nated No.Classification number of a replacement ECU can be read to prevent an
incorrect ECU from being installed.--x-----
Function testThis mode can show results of self-diagnosis of ECU with either “OK” or
“NG”. For engines, more practical tests regarding sensors/switches and/or
actuators are available.xxxxx---
Control unit initial-
izationAll registered ignition key IDs in NATS components can be initialized and
new IDs can be registered.- -----x-
Configuration*
3— - ------x

PREPARATION
EM-7
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PREPARATIONPFP:00002
Special Service ToolsEBS00L7N
Tool number
Tool nameDescription
KV10111100
Seal cutterRemoving oil pan and timing chain case
ST0501S000
Engine stand assembly
1. ST05011000
Engine stand
2. ST05012000
BaseDisassembling and assembling
KV10106500
Engine stand shaft
KV10115300
Engine sub-attachment
KV10116200
Valve spring compressor
1. KV10115900
Attachment
2. KV10109220
AdapterDisassembling and assembling valve
mechanism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
Angle wrenchTightening bolts for bearing cap, cylinder
head, etc.
KV10117100
Heated oxygen sensor wrenchLoosening or tightening heated oxygen
sensors with 22 mm (0.87 in) hexagon nut
S-NT046
NT042
NT028
ZZA1078D
PBIC1650E
S-NT014
NT379

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-25
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EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
Removal and InstallationEBS00KND
REMOVAL
1. Remove heated oxygen sensors with the following procedure:
a. Disconnect harness connector of each heated oxygen sensor, and harness from bracket and middle
clamp.
b. Using heated oxygen sensor wrench (special service tool),
remove heated oxygen sensors.
CAUTION:

Be careful not to damage heated oxygen sensor.

Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; replace with a new
one.
2. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Remove alternator. Refer to SC-13, "
CHARGING SYSTEM" .
4. Remove exhaust manifold cover (upper).
1. Heated oxygen sensor 1 2.Exhaust manifold and three way cat-
alyst assembly3. Gasket
4. Three way catalyst cover 5. Exhaust manifold cover (lower) 6. Heated oxygen sensor 2
7. Exhaust manifold cover (upper)
PBIC2750E
KBIA0094E

EM-86
[QR]
ENGINE ASSEMBLY

2. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
3. Drain engine coolant from radiator. Refer to CO-9, "
DRAINING ENGINE COOLANT" .
4. Remove the following parts.

LH and RH undercovers

Front road wheels and tyres

Battery; Refer to SC-4, "BATTERY" .

Drive belt; Refer to EM-13, "DRIVE BELTS" .

Air duct and air cleaner case assembly; Refer to EM-16, "AIR CLEANER AND AIR DUCT" .

Alternator; Refer to SC-13, "CHARGING SYSTEM" .

Radiator and radiator cooling fan assembly; Refer to CO-12, "RADIATOR" .
5. Disconnect engine room harness from the engine side and set it aside for easier work.
6. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect fuel feed hose, and plug it to prevent fuel from draining. Refer to EM-34, "FUEL INJECTOR
AND FUEL TUBE"
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining.
3. Disconnect control cable from transaxle (A/T models). Refer to AT- 4 0 4 , "
ON-VEHICLE SERVICE" .
4. Disconnect clutch operating cylinder from transaxle, and move it aside (M/T models). Refer to CL-12,
"OPERATING CYLINDER" .
5. Disconnect shift and select cable from transaxle (M/T models). Refer to MT-16, "
CONTROL LINKAGE" .
Engine Room RH
1. Remove engine coolant reservoir tank. Refer to CO-12, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on vehicle side with a
rope to avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle Underbody
1. Remove exhaust front tube. Refer to EX-2, "EXHAUST SYSTEM" .
2. Remove propeller shaft. Refer to PR-3, "
REAR PROPELLER SHAFT" .
3. Remove steering lower joint from steering gear. Refer to PS-11, "
STEERING COLUMN" .
4. Disconnect power steering fluid piping at a point between vehicle and engine. Refer to PS-37, "
HYDRAU-
LIC LINE" .
5. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter
(A/T models). Refer to EM-27, "
OIL PAN AND OIL STRAINER" and AT- 4 1 3 , "REMOVAL AND INSTALLA-
TION" .
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to MT-19, "
TRAN-
SAXLE ASSEMBLY" (M/T models) or AT- 4 1 3 , "REMOVAL AND INSTALLATION" (A/T models).
7. Remove front wheel sensor (LH and RH) for ABS from steering knuckle. Refer to BRC-46, "
WHEEL SEN-
SORS" (ABS) or BRC-116, "WHEEL SENSORS" (ESP/TCS/ABS).
8. Remove brake caliper assembly with piping connected from steering knuckle. Temporarily secure it on
vehicle side with a rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
9. Remove lower ends of left and right strut from steering knuckle. Refer to FSU-5, "
FRONT SUSPENSION
ASSEMBLY" .
Removal
1. Install engine slingers into front left of cylinder head and rear right of cylinder head.

ENGINE ASSEMBLY
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REMOVAL
Description of work
Remove engine and transaxle assembly from vehicle downward. Separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Drain engine coolant from radiator drain plug. Refer to CO-32, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.

LH and RH engine undercover

LH and RH front wheels

Battery; Refer to SC-4, "BATTERY" .

Drive belts; Refer to EM-140, "DRIVE BELTS" .

Air duct and air cleaner case assembly; Refer to EM-142, "AIR CLEANER AND AIR DUCT" .

Alternator; Refer to SC-17, "Removal and Installation" .

Radiator assembly; Refer to CO-35, "RADIATOR" .

Charge air cooler; Refer to EM-144, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine room LH
1. Disconnect fuel hose, and plug it to prevent fuel from draining. Refer to EM-146, "INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-146,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-19, "
TRANSAXLE
ASSEMBLY" and CL-12, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-16, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-35, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on body with a rope to
avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle underbody
1. Remove exhaust front tube. Refer to EX-2, "EXHAUST SYSTEM" .
2. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-37,
"HYDRAULIC LINE" .
3. Remove front wheel sensor (LH and RH) for ABS from brake caliper. Refer to BRC-46, "
WHEEL SEN-
SORS" (ABS), BRC-116, "WHEEL SENSORS" (ESP/TCS/ABS).
4. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
5. Remove drive shaft (LH and RH) from steering knuckle. Refer to FA X - 11 , "
FRONT DRIVE SHAFT" .
6. Preparation for the separation work of transaxle as follows:
a. Remove crankshaft position sensor from transmission. Refer toEM-157, "
OIL PAN AND OIL STRAINER" .
b. Remove transaxle joint bolts which pierce at oil pan (lower) rear side. Refer to EM-157, "
OIL PAN AND
OIL STRAINER" .

ENGINE ASSEMBLY
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REMOVAL
Description of work
Remove engine, transaxle and transfer assembly with front suspension member from vehicle downward. Sep-
arate suspension member, and then separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Drain engine coolant from radiator drain plug. Refer to CO-32, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.

LH and RH engine undercover

LH and RH front wheels

Battery; Refer to SC-4, "BATTERY" .

Drive belts; Refer to EM-141, "Removal and Installation" .

Air duct and air cleaner case assembly; Refer to EM-142, "Removal and Installation" .

Alternator; Refer to SC-17, "Removal and Installation" .

Radiator and cooling fan assembly; Refer to CO-35, "Removal and Installation" and CO-37, "COOL-
ING FAN" .

Charge air cooler; Refer to EM-144, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine room LH
1. Disconnect fuel hose, and plug it to prevent fuel from draining. Refer to EM-146, "INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-146,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-19, "
TRANSAXLE
ASSEMBLY" and CL-12, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-16, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-35, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on body with a rope to
avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle underbody
1. Remove exhaust front tube. Refer to EX-2, "Removal and Installation" .
2. Remove propeller shaft. Refer to PR-4, "
Removal and Installation" .
3. Remove steering shaft from steering gear. Refer to PS-11, "
STEERING COLUMN" .
4. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-37,
"HYDRAULIC LINE" .
5. Remove front wheel sensor (LH and RH) for ABS from brake caliper. Refer to BRC-46, "
WHEEL SEN-
SORS" (ABS), BRC-116, "WHEEL SENSORS" (ESP/TCS/ABS).
6. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
7. Remove lower ends of LH and RH strut from steering knuckle. Refer to FSU-5, "
FRONT SUSPENSION
ASSEMBLY" .
8. Preparation for the separation work of transaxle as follows:
a. Remove crankshaft position sensor from transmission. Refer toEM-157, "
OIL PAN AND OIL STRAINER" .
b. Remove transaxle joint bolts which pierce at oil pan lower rear side. Refer to EM-157, "
OIL PAN AND OIL
STRAINER" .

EC-24
[QR (WITH EURO-OBD)]
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS010L0
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.
On Board Diagnostic (OBD) System of Engine and A/TEBS010L1
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the battery ground cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-74, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel injection system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PrecautionEBS010L2

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect battery
ground cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect battery ground cable.
SEF289H