2003 NISSAN X-TRAIL Electronic Repair Manual

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Page 1713 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual IGNITION SIGNAL
EC-599
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15.CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuit

Page 1714 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-600
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IGNITION SIGNAL
Removal and Installation
EBS00B91
IGNITION COIL WITH POWER TRANSISTOR
Refer toEM-27, "IGNITION COIL".

Page 1715 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-601
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EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVEPFP:14920
DescriptionEBS00B92
SYSTEM DESCRIP

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-601
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EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVEPFP:14920
DescriptionEBS00B92
SYSTEM DESCRIPTION
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is
determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor
from the EVAP canister is regulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-II Reference Value in Data Monitor ModeEBS00B93
Specification data are reference values.
ECM Terminals and Reference ValueEBS00B94
Specification data are reference values and are measured between each terminal and body ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Sensor Input Signal to ECMECM
functionActuator
Crankshaft position sensor (POS) Engine speed
EVAP can-
ister purge
flow con-
trolEVAP canister purge volume
control solenoid valve Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Ignition switch Start signal
Throttle position sensor Throttle position
Accelerator pedal position sensor Closed throttle position
Heated oxygen sensors 1Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Wheel sensor Vehicle speed
SEF337U
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V
lEngine: After warming up
lShiftlever:N
lAir conditioner switch: OFF
lNo-loadIdle 0%
2,000 rpm 20 - 30%

Page 1716 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-602
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EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) TER-
MINAL
NO.WIRE
COLORITEM

Page 1717 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-603
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Wiring DiagramEBS00B95
TBWA0079E

Page 1718 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-604
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EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Diagnostic Procedure
EBS00B96
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch "OFF".
2. Disconnect the

Page 1719 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-605
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3.CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister

Page 1720 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-606
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EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
6.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIR-
CUITFOROPENANDSHORT
1. Turn ignition switc

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