NISSAN X-TRAIL 2005 Service Repair Manual

INDEX FOR DTC
EC-977
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
P0380 0380 GLOW RELAY 3×EC-1182
P0401 0401 EGR SYSTEM 3×EC-1186
P0404 0404 EGR VALVE 3×EC-1193
P0501 0501 VEHICLE SPEED 1 —EC-1200
P0502 0502 VEHICLE SPEED 1 —EC-1202
P0503 0503 VEHICLE SPEED 1 —EC-1204
P0504 0504 BRAKE SW/CIRCUIT 1 —EC-1206
P0563 0563 BATTERY VOLTAGE 1 —EC-1215
P0580 0580 STRG SW/CIRC 1 —EC-1218
P0581 0581 STRG SW/CIRC 1 —EC-1218
P0605 0605 ECM 3×EC-1227
P0606 0606 ECM 3×EC-1229
P0628 0628 FUEL PUMP/CIRC 3×EC-1231
P0629 0629 FUEL PUMP/CIRC 3×EC-1231
P0642 0642 SENSOR PWR/CIRC1 3×EC-1236
P0643 0643 SENSOR PWR/CIRC1 3×EC-1236
P0652 0652 SENSOR PWR/CIRC2 3×EC-1240
P0653 0653 SENSOR PWR/CIRC2 3×EC-1240
P0686 0686 ECM RELAY 1 —EC-1245
P1211 1211 TCS C/U FUNCTN 1 —EC-1249
P1212 1212 TCS/CIRC 1 —EC-1250
P1260 1260 INJ ADJ RES/CIRC1 3×EC-1251
P1261 1261 INJ ADJ RES/CIRC1 3×EC-1251
P1262 1262 INJ ADJ RES/CIRC2 3×EC-1251
P1263 1263 INJ ADJ RES/CIRC2 3×EC-1251
P1264 1264 INJ ADJ RES/CIRC3 3×EC-1251
P1265 1265 INJ ADJ RES/CIRC3 3×EC-1251
P1266 1266 INJ ADJ RES/CIRC4 3×EC-1251
P1267 1267 INJ ADJ RES/CIRC4 3×EC-1251
P1268 1268 INJECTOR 1 1 —EC-1257
P1269 1269 INJECTOR 2 1 —EC-1257
P1270 1270 INJECTOR 3 1 —EC-1257
P1271 1271 INJECTOR 4 1 —EC-1257
P1272 1272 FRP RELIEF VALVE 3×EC-1263
P1273 1273 FUEL PUMP 3×EC-1270
P1274 1274 FUEL PUMP 1×EC-1275
P1275 1275 FUEL PUMP 1×EC-1280
P1610 - P1617 1610 - 1617 NATS MALFUNTION 1 —EC-1001
P2135 2135 APP SENSOR 1 —EC-1285
P2146 2146 INJ PWR/CIRC 3×EC-1292
P2147 2147 INJECTOR/CIRC 3×EC-1297
P2148 2148 INJECTOR/CIRC 3×EC-1297
DTC*1
Items
(CONSULT-II screen item) TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-978
[YD (WITH EURO-OBD)]
INDEX FOR DTC

*1: 1st trip DTC No. and 2nd trip DTC No. are the same as DTC No.
*2: This number is prescribed by ISO 15031-6.
*3: In Diagnostic Test Mode II (Self-diagnostic results).
*4: The troubleshooting for this DTC needs CONSULT-II.P2149 2149 INJ PWR/CIRC 3×EC-1292
P2228 2228 BARO SEN/CIRC 3×EC-1303
P2229 2229 BARO SEN/CIRC 3×EC-1303
DTC*1
Items
(CONSULT-II screen item) TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3

PRECAUTIONS
EC-979
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
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MA
EC

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS0116Q
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 EngineEBS011T4
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 system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM
before returning the vehicle to the customer.
PrecautionsEBS0116R

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-980
[YD (WITH EURO-OBD)]
PRECAUTIONS


Do not disassemble ECM.

When connecting ECM harness connector, fasten it
securely with levers as far as they will go as shown in the
figure.

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to IC's.

Keep engine control system harness at least 10cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of IC's, etc.

Keep engine control system parts and harness dry.

Before replacing ECM, perform ECM Terminals and Refer-
ence Value inspection and make sure ECM functions prop-
erly. Refer to EC-1027, "
ECM Terminals And Reference
Va l u e" .

Handle mass air flow sensor carefully to avoid damage.

Do not disassemble mass air flow sensor.

Do not clean mass air flow sensor with any type of deter-
gent.

Even a slight leak in the air intake system can cause seri-
ous incidents.

Do not shock or jar the camshaft position sensor, crank-
shaft position sensor.
MBIB0625E
PBIB1512E
SEF291H
MEF040D

PRECAUTIONS
EC-981
[YD (WITH EURO-OBD)]
C
D
E
F
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MA
EC


After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Overall Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Overall Function
Check should be a good result if the repair is completed.

When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.

Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.

Do not disassemble fuel pump.
If NG, take proper action.

Do not disassemble fuel injector.
If NG, replace fuel injector.

Do not depress accelerator pedal when staring.

Immediately after staring, do not rev up engine unnecessar-
ily.

Do not rev up engine just prior to shutdown.

When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control units.
–Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–Adjust the antenna and feeder line so that the standingwave
radio can be kept smaller.
–Be sure to ground the radio to vehicle body.
SAT652J
SEF348N
SEF709Y
SEF708Y

EC-982
[YD (WITH EURO-OBD)]
PRECAUTIONS

Wiring Diagrams and Trouble DiagnosisEBS0116S
When you read Wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams".

PG-2, "POWER SUPPLY ROUTING" for power distribution circuit
When you perform trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES".

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident".

PREPARATION
EC-983
[YD (WITH EURO-OBD)]
C
D
E
F
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MA
EC

PREPARATIONPFP:00002
Special Service ToolsEBS011T9
Commercial Service ToolsEBS011TA
Tool number
Tool nameDescription
EG17650301
Radiator cap tester
adapterAdapting radiator cap tester to radiator cap and
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV109E0010
Break-out boxMeasuring the ECM signals with a circuit tester
KV109E0080
Y-cable adapterMeasuring the ECM signals with a circuit tester
S-NT564
S-NT825
S-NT826
Tool name Description
Socket wrench Removing and installing engine coolant
temperature sensor
S-NT705

EC-984
[YD (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

ENGINE CONTROL SYSTEMPFP:23710
System DiagramEBS0116T
PBIB2884E

ENGINE CONTROL SYSTEM
EC-985
[YD (WITH EURO-OBD)]
C
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EC

Vacuum Hose DrawingEBS0116U
Refer to EC-984, "System Diagram" for Vacuum Control System.
PBIB2019E

EC-986
[YD (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

System ChartEBS0116V
*1: The input signal is sent to the ECM through CAN communication line.
*2: The output signal is sent from the ECM through CAN communication line.
Fuel Injection Control SystemEBS0116W
SYSTEM DESCRIPTION
Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle control and start control. The ECM determines the appropriate fuel injection control. Under each control,
the amount of fuel injected is adjusted to improve engine performance.
Pulse signals are sent to fuel injectors according to the input signals to adjust the amount of fuel injected to
preset value.
START CONTROL
Input/Output Signal Chart
When the ECM receives a start signal from the ignition switch, the
ECM adapts the fuel injection system for the start control. The
amount of fuel injected at engine starting is a preset program value
in the ECM. The program is determined by the engine speed, engine
coolant temperature and fuel rail pressure.
For better startability under cool engine conditions, the lower the
coolant temperature becomes, the greater the amount of fuel
injected. The ECM ends the start control when the engine speed
reaches the specific value, and shifts the control to the normal or idle
control.
Input (Sensor) ECM Function Output (Actuator)

Accelerator pedal position sensor

Fuel rail pressure sensor

Fuel pump temperature sensor

Engine coolant temperature sensor

Mass air flow sensor

Intake air temperature sensor

Crankshaft position sensor

Camshaft position sensor

Turbocharger boost sensor

Vehicle speed sensor*1

ESP/TCS/ABS control unit*1

Ignition switch

Stop lamp switch

Air conditioner switch*1

Park/neutral position switch

Battery voltage

Fuel level switch

Power steering pressure switch Fuel injection control Fuel injector and Fuel pump
Fuel injection timing control Fuel injector and Fuel pump
Fuel cut control Fuel injector and Fuel pump
Glow control system
Glow relay and glow indicator lamp*
2
On board diagnostic system
Malfunction indicator (MI)*2
EGR volume control EGR volume control valve
Cooling fan control Cooling fan relay
Turbocharger boost controlTurbocharger boost control solenoid
valve
Fuel transport pump control Fuel transport pump relay
Air conditioning cut control Air conditioner relay
Sensor Input Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection
control (start
control)Fuel injector
Fuel pump Crankshaft position sensor Engine speed
Camshaft position sensor Piston position
Ignition switch Start signal
Fuel rail pressure sensor Fuel rail pressure
SEF648S