2003 NISSAN X-TRAIL ESP

ENGINE ASSEMBLY
EM-209
[YD22DDTi]
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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-31, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.

LH/RH engine undercover

LH/RH front wheels

Battery; Refer to SC-3, "BATTERY" .

Drive belts; Refer to EM-132, "Removal and Installation" .

Air duct and air cleaner case assembly; Refer to EM-133, "Removal and Installation" .

Alternator; Refer to SC-16, "Removal and Installation" .

Radiator and cooling fan assembly; Refer to CO-34, "Removal and Installation" and CO-36, "COOL-
ING FAN" .

Charge air cooler; Refer to EM-135, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all the body-side vacuum hoses and air hoses at engine side.
Engine room LH
1. Disconnect fuel feed hose and return hose, and plug it to prevent fuel from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-17, "
TRANSAXLE
ASSEMBLY" and CL-10, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-14, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-34, "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-10, "
STEERING COLUMN" .
4. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-34,
"HYDRAULIC LINE" .
5. Remove ABS sensor from brake caliper. Refer to BRC-45, "
WHEEL SENSORS" (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 left and right suspensions from steering knuckle under strut. Refer to FSU-5, "
FRONT SUSPEN-
SION ASSEMBLY" .

ENGINE OIL
LU-21
[YD22DDTi]
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4. Disconnect harness connector at oil pressure switch, and using
deep socket (commercial service tool), remove oil pressure
switch.
5. Install the oil pressure gauge and hose (special service tool).
6. After warming up engine, make sure that oil pressure corresponding to the engine speed is produced.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80 °C (176 °F)]
7. After checking, install oil pressure switch as follows.
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to specification.
Use Genuine Thread Sealant or equivalent.
c. After warming up engine, check for oil leakage with running engine.
Changing Engine OilEBS00B04
WARNING:

Be careful not to burn yourself, as the engine oil is hot.

Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct
skin contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand
cleaner as soon as possible.
1. Warm up engine, put vehicle horizontally and check for engine oil leakage from engine components. Refer
to LU-20, "
ENGINE OIL LEAKAGE" .
2. Stop engine and wait for 10 minutes.
SBIA0123E
SLC926-A
Engine speed (rpm) Idle speed 2,000
Engine pressure
kPa (bar, kg/cm
2 , psi)140 (1.40, 1.43, 20.3) or more 270 (2.70, 2.75, 39.2) or more
Oil pressure switch:
: 13.0 - 17.0 N·m (1.4 - 1.7 kg-m, 10 - 12 ft-lb)

INDEX FOR DTC
EC-21
[QR (WITH EURO-OBD)]
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*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: For models with ESP system.
DTC No. IndexEBS010KZ
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-132, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
TP SEN 2/CIRC P0122 0122 1×EC-168
TP SEN 2/CIRC P0123 0123 1×EC-168
TP SENSOR P2135 2135 1×EC-401
TP SEN/CIRC A/T P1705 1705 1×AT-173
TW CATALYST SYS-B1 P0420 0420 2×EC-261
V/SP SEN (A/T OUT) P1720 1720 2 —EC-378
VEH SPD SEN/CIR AT P0720 0720 2×AT- 11 2
VEH SPEED SEN/CIRC P0500 0500 2×EC-272
Items
(CONSULT-II screen terms)DTC*
1
TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
DTC*1
Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
No DTC
Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
Flashing*4EC-517
U1000
1000*5CAN COMM CIRCUIT 1×EC-132
U1001
1001*5CAN COMM CIRCUIT 2 —EC-132
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0011 0011 INT/V TIM CONT-B1 2 —EC-135
P0031 0031 HO2S1 HTR (B1) 2×EC-138
P0032 0032 HO2S1 HTR (B1) 2×EC-138
P0037 0037 HO2S2 HTR (B1) 2×EC-144
P0038 0038 HO2S2 HTR (B1) 2×EC-144
P0102 0102 MAF SEN/CIRCUIT 1×EC-149
P0103 0103 MAF SEN/CIRCUIT 1×EC-149
P0112 0112 IAT SEN/CIRCUIT 2×EC-156
P0113 0113 IAT SEN/CIRCUIT 2×EC-156
P0117 0117 ECT SEN/CIRCUIT 1×EC-162
P0118 0118 ECT SEN/CIRCUIT 1×EC-162
P0122 0122 TP SEN 2/CIRC 1×EC-168
P0123 0123 TP SEN 2/CIRC 1×EC-168
P0132 0132 HO2S1 (B1) 2×EC-176
P0133 0133 HO2S1 (B1) 2×EC-183
P0134 0134 HO2S1 (B1) 2×EC-193

INDEX FOR DTC
EC-23
[QR (WITH EURO-OBD)]
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*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: For models with ESP system.P1146 1146 HO2S2 (B1) 2×EC-330
P1147 1147 HO2S2 (B1) 2×EC-338
P1211 1211
TCS CU FUNCTN*62—EC-346
P1212 1212
TCS/CIRC*62—EC-347
P1217 1217 ENG OVER TEMP 1×EC-348
P1225 1225 CTP LEARNING 2 —EC-364
P1226 1226 CTP LEARNING 2 —EC-366
P1229 1229 SENSOR POWER/CIRC 1×EC-368
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 —EC-64
P1705 1705 TP SEN/CIRC A/T 1×AT-173
P1706 1706 P-N POS SW/CIRCUIT 2×EC-373
P1720 1720 V/SP SEN (A/T OUT) 2 —EC-378
P1760 1760 O/R CLTCH SOL/CIRC 2×AT-178
P1805 1805 BRAKE SW/CIRCUIT 2 —EC-380
P2122 2122 APP SEN 1/CIRC 1×EC-386
P2123 2123 APP SEN 1/CIRC 1×EC-386
P2127 2127 APP SEN 2/CIRC 1×EC-393
P2128 2128 APP SEN 2/CIRC 1×EC-393
P2135 2135 TP SENSOR 1×EC-401
P2138 2138 APP SENSOR 1×EC-409
DTC*1
Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3

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-70, "
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

EC-34
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

System ChartEBS010L8
*1: This sensor is not used to control the engine system under normal conditions.
*2: This input signal is sent to the ECM through CAN communication line.
*3: This output signal is sent from the ECM through CAN communication line.
*4: With ESP models.
*5: Without ESP models.
Multiport Fuel Injection (MFI) SystemEBS010L9
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.Input (Sensor) ECM Function Output (Actuator)

Camshaft position sensor (PHASE)

Crankshaft position sensor (POS)

Mass air flow sensor

Engine coolant temperature sensor

Heated oxygen sensor 1

Throttle position sensor

Accelerator pedal position sensor

Park/neutral position (PNP) switch

Intake air temperature sensor

Power steering pressure sensor

Ignition switch

Battery voltage

Knock sensor

Refrigerant pressure sensor

Stop lamp switch

Heated oxygen sensor 2*1

TCM (Transmission control module)*2

ESP/TCS/ABS control unit*2 *4

ABS actuator and electric unit
(control unit)*2 *5

Air conditioner switch

Wheel sensor*2

Electrical load signalFuel injection & mixture ratio control Fuel injector
Electronic ignition system Power transistor
Fuel pump control Fuel pump relay
On board diagnostic system
MI (On the instrument panel)*
3
Heated oxygen sensor 1 heater control Heated oxygen sensor 1 heater
Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater
EVAP canister purge flow controlEVAP canister purge volume control
solenoid valve
Air conditioning cut control Air conditioner relay
Cooling fan control Cooling fan relay
Sensor Input Signal to ECMECM
functionActuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
3 and piston position
Fuel injec-
tion & mix-
ture ratio
controlFuel injector Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Knock sensor Engine knocking condition
Battery
Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Wheel sensor*
2Vehicle speed
Air conditioner switch Air conditioner operation

ENGINE CONTROL SYSTEM
EC-39
[QR (WITH EURO-OBD)]
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M/T MODELS WITHOUT ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6458E
Signals ECMABS actuator and
electric unit (con-
trol unit)4WD control unit Combination meter
Stop lamp switch signal T R
Engine speed signal T R R
Engine coolant temperature signal T R
Accelerator pedal position signal T R
A/C compressor feedback signal T R
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signal T R
Parking brake switch signalRT
MI signal T R

EC-40
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

A/T MODELS WITHOUT ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6457E
Signals ECM TCMABS actuator
and electric unit
(control unit)4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R
Overdrive control switch signal R T
O/D OFF indicator signal T R
Closed throttle position signal T R
Wide open throttle position signal T R
Engine speed signal T R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R
Output shaft revolution signal R T
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Engine A/T integrated control signalTR
RT
A/T self-diagnosis signal R T