2003 NISSAN X-TRAIL sensor

EC-11
C
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ECA Diagnostic Procedure ........................................... 812
Component Inspection ......................................... 813
PARK/NEUTRAL POSITION (PNP) SWITCH ........ 814
Description ........................................................... 814
CONSULT-II Reference Value in Data Monitor Mode
. 814
ECM Terminals and Reference Value .................. 814
Wiring Diagram .................................................... 815
Diagnostic Procedure ........................................... 816
START SIGNAL ...................................................... 818
Wiring Diagram .................................................... 818
Diagnostic Procedure ........................................... 819
POWER STEERING OIL PRESSURE SWITCH .... 820
Component Description ........................................ 820
CONSULT-II Reference Value in Data Monitor Mode
. 820
ECM Terminals and Reference Value .................. 820Wiring Diagram .....................................................821
Diagnostic Procedure ...........................................822
Component Inspection ..........................................823
Removal and Installation ......................................823
AIR CONDITIONER CONTROL .............................824
Wiring Diagram .....................................................824
MI & DATA LINK CONNECTORS ...........................825
Wiring Diagram .....................................................825
SERVICE DATA AND SPECIFICATIONS (SDS) ....826
General Specifications ..........................................826
Mass Air Flow Sensor ...........................................826
Engine Coolant Temperature Sensor ...................826
Common Rail Fuel Pressure Sensor ....................826
Crankshaft Position Sensor (TDC) .......................826
Camshaft Position Sensor ....................................826
Glow Plug .............................................................826
EGR Volume Control Valve ..................................826

INDEX FOR DTC
EC-13
[QR (WITH EURO-OBD)]
C
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EC
*1: 1st trip DTC No. is the same as DTC No.
*2: These numbers are prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*4: When engine is running.
*5: When the fail-safe operation occurs, the MI illuminates.
*6: The trouble shooting for this DTC needs CONSULT-II.
*7: Except for M/T models without ESP/TCS/ABS system.
*8: For M/T models with ESP/TCS/ABS system.
*9: When the fail-safe operations for both self-diagnoses occur at the same time, the MI illuminates.HO2S2 HTR (B1) P0037 0037EC-125
HO2S2 HTR (B1) P0038 0038EC-125
IAT SEN/CIRCUIT P0112 0112EC-136
IAT SEN/CIRCUIT P0113 0113EC-136
INT/V TIM CONT-B1 P0011 0011EC-117
I N T / V T IM V / C I R - B 1 P 1111 1111EC-266
KNOCK SEN/CIRC-B1 P0327 0327EC-212
KNOCK SEN/CIRC-B1 P0328 0328EC-212
L/PRESS SOL/CIRC P0745 0745AT- 1 8 6
MAF SEN/CIRCUIT*5 P0102 0102EC-130
MAF SEN/CIRCUIT*5 P0103 0103EC-130
MAF SENSOR P1102 1102EC-260
MIL/CIRC P0650 0650EC-252
MULTI CYL MISFIRE P0300 0300EC-206
NATS MALFUNCTION P1610 - P1615 1610 - 1615EC-48
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC Flashing*4EC-49
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 —
O/R CLTCH SOL/CIRC P1760 1760AT- 2 0 8
P-N POS SW/CIRCUIT P1706 1706EC-325
PNP SW/CIRC P0705 0705AT- 1 3 0
PURG VOLUME CONT/V P0444 0444EC-233
PURG VOLUME CONT/V P0445 0445EC-233
PW ST P SEN/CIRC P0550 0550EC-244
SFT SOL A/CIRC*5 P0750 0750AT- 1 9 3
SFT SOL B/CIRC*5 P0755 0755AT- 1 9 8
TCC SOLENOID/CIRC P0740 0740AT- 1 8 1
TCS/CIRC*8 P1212 1212EC-310
THRTL POS SEN/CIRC*5 P0120 0120EC-146
TP SEN/CIRC A/T*5 P1705 1705AT- 2 0 3
TW CATALYST SYS-B1 P0420 0420EC-229
VEH SPD SEN/CIR AT*9 P0720 0720AT- 1 4 2
VEH SPEED SEN/CIRC*9 P0500 0500EC-239
Items
(CONSULT-II screen terms)DTC*1
Reference page
CONSULT-II
GST*2ECM*3

INDEX FOR DTC
EC-15
[QR (WITH EURO-OBD)]
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EC
*1: 1st trip DTC No. is the same as DTC No.
*2: These numbers are prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*4: When engine is running.
*5: When the fail-safe operation occurs, the MI illuminates.
*6: The trouble shooting for this DTC needs CONSULT-II.
*7: Except for M/T models without ESP/TCS/ABS system.
*8: For M/T models with ESP/TCS/ABS system.
*9: When the fail-safe operations for both self-diagnoses occur at the same time, the MI illuminates.P0445 0445 PURG VOLUME CONT/VEC-233
P0500 0500 VEH SPEED SEN/CIRC*9EC-239
P0550 0550 PW ST P SEN/CIRCEC-244
P0605 0605 ECMEC-249
P0650 0650 MIL/CIRCEC-252
P0705 0705 PNP SW/CIRCAT- 1 3 0
P0710 0710 ATF TEMP SEN/CIRCAT- 1 3 6
P0720 0720 VEH SPD SEN/CIR AT*9AT- 1 4 2
P0725 0725 ENGINE SPEED SIGAT- 1 4 7
P0731 0731 A/T 1ST GR FNCTNAT- 1 5 1
P0732 0732 A/T 2ND GR FNCTNAT- 1 5 8
P0733 0733 A/T 3RD GR FNCTNAT- 1 6 5
P0734 0734 A/T 4TH GR FNCTNAT- 1 7 2
P0740 0740 TCC SOLENOID/CIRCAT- 1 8 1
P0745 0745 L/PRESS SOL/CIRCAT- 1 8 6
P0750 0750 SFT SOL A/CIRC*5AT- 1 9 3
P0755 0755 SFT SOL B/CIRC*5AT- 1 9 8
P1065 1065 ECM BACK UP/CIRCEC-256
P1102 1102 MAF SENSOREC-260
P 1111 1111 IN T / V T I M V / C I R - B 1EC-266
P1121 1121 ETC ACTREC-271
P1122 1122 ETC FUNCTION/CIRCEC-273
P1123 1123 ETC MOT RLY/CIRCEC-279
P1143 1143 HO2S1 (B1)EC-284
P1144 1144 HO2S1 (B1)EC-290
P1146 1146 HO2S2 (B1)EC-296
P1147 1147 HO2S2 (B1)EC-303
P1212 1212 TCS/CIRC*8EC-310
P1217 1217 ENG OVER TEMPEC-311
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONEC-48
P1705 1705 TP SEN/CIRC A/T*5AT- 2 0 3
P1706 1706 P-N POS SW/CIRCUITEC-325
P1760 1760 O/R CLTCH SOL/CIRCAT- 2 0 8
P1805 1805 BRAKE SW/CIRCUITEC-329
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*2ECM*3

EC-16
[QR (WITH EURO-OBD)]
PRECAUTIONS
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS00B0I
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.
WAR NIN G:
lTo 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.
lImproper 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.
lDo 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 harness connectors.
On Board Diagnostic (OBD) System of Engine and A/TEBS00B0J
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:
lBe sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.
lBe 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.)
lCertain 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 toPG-70, "
HAR-
NESS CONNECTOR".
lBe 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.
lBe 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.
lBe sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PrecautionEBS00B0K
lAlways use a 12 volt battery as power source.
lDo not attempt to disconnect battery cables while engine is
running.
lBefore connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery terminal. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned off.
lBefore removing parts, turn ignition switch OFF and then
disconnect battery ground cable.
SEF289H

PRECAUTIONS
EC-17
[QR (WITH EURO-OBD)]
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lDo not disassemble ECM.
lIf a battery terminal is disconnected, the memory will return
to the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a problem.
Do not replace parts because of a slight variation.
lWhen connecting ECM harness connector, fasten it
securely with a lever as far as it will go as shown at right.
lWhen 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.
lSecurely 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 ICs.
lKeep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.
lKeep engine control system parts and harness dry.
lBefore replacing ECM, perform “ECM Terminals and Refer-
ence Value” inspection and make sure ECM functions prop-
erly. Refer toEC-79
.
lHandle mass air flow sensor carefully to avoid damage.
lDo not disassemble mass air flow sensor.
lDo not clean mass air flow sensor with any type of deter-
gent.
lDo not disassemble electric throttle control actuator.
lEven a slight leak in the air intake system can cause seri-
ous problems.
lDo not shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
SEF707Y
SEF908W
PBIB0090E
MEF040D

EC-20
[QR (WITH EURO-OBD)]
PREPARATION
PREPARATION
PFP:00002
Special Service ToolsEBS00B0M
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsEBS00B0N
Tool number
Tool nameDescription
KV10117100
Heated oxygen
sensor wrenchLoosening or tightening heated oxygen sensors
with 22 mm (0.87 in) hexagon nut
KV10114400
Heated oxygen
sensor wrenchLoosening or tightening heated oxygen sensors
a: 22 mm (0.87 in)
S-NT379
S-NT636
Tool name (Kent-
Moore No.)Description
Quick connector
releaseRemoving fuel tube quick connectors in engine
room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210)
Fuel filler cap adapter Checking fuel tank vacuum relief valve opening
pressure
Socket wrench Removing and installing engine coolant
temperature sensor
PBIC0198E
S-NT653
S-NT705

PREPARATION
EC-21
[QR (WITH EURO-OBD)]
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Oxygen sensor
thread cleanerReconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for
Titania Oxygen Sensor
Anti-seize lubricant
(Permatex
TM133AR
or equivalent meeting
MIL specification
MIL-A-907)Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads. Tool name (Kent-
Moore No.)Description
S-NT778
S-NT779

EC-24
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM
System Chart
EBS00B0Q
*1: This sensor is not used to control the engine system under normal conditions.
*2: These signals are sent to the ECM through CAN communication line.
Multiport Fuel Injection (MFI) SystemEBS00B0R
INPUT/OUTPUT SIGNAL CHART
*1: Under normal conditions, this sensor is not for engine control operation.
*2: This signal is sent to the ECM through CAN communication line.Input (Sensor) ECM Function Output (Actuator)
lCamshaft position sensor (PHASE)
lCrankshaft position sensor (POS)
lMass air flow sensor
lEngine coolant temperature sensor
lHeated oxygen sensor 1
lThrottle position sensor
lAccelerator pedal position sensor
lPark/neutral position (PNP) switch
lIntake air temperature sensor
lPower steering pressure sensor
lIgnition switch
lBattery voltage
lKnock sensor
lRefrigerant pressure sensor
lHeated oxygen sensor 2 *1
lTCM (Transmission control module) *2
lESP/TCS/ABS control unit *2
lWheel sensor
lAir conditioner switch
lElectrical loadFuel injection & mixture ratio control Fuel injectors
Electronic ignition system Power transistors
Fuel pump control Fuel pump relay
On board diagnostic system MI (On the instrument panel)
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 relays
Sensor Input Signal to ECMECM func-
tionActuator
Crankshaft position sensor (POS)
Engine speed
Piston position
Fuel injec-
tion & mix-
ture ratio
controlFuel injectors Camshaft position sensor (PHASE)
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
Ignition switch Start signal
Knock sensor Engine knocking condition
Battery Battery voltage
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2 *1 Density of oxygen in exhaust gas
ESP/TCS/ABS control unit *2 ESP/TCS operation command
Wheel sensor Vehicle speed
Air conditioner switch Air conditioner operation