NISSAN X-TRAIL 2003 Electronic Repair Manual

IGNITION SIGNAL
EC-597
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8.DETECT MALFUNCTIONING PART
Check the following.
l20A fuse
lHarness or connectors E61, F38
lHarness for open and short between ECM relay and fuse
>> Repair or replace harness or connectors.
9.CHECK ECM RELAY
Refer toEC-459, "
Component Inspection".
OK or NG
OK >> GO TO 17.
NG >> Replace ECM relay.
10.CHECK CONDENSER CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check harness continuity between ECM terminal 12 and con-
denser terminal 1, condenser terminal 2 and engine ground.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
11 .CHECK CONDENSER
Refer toEC-599, "
Component Inspection".
OK or NG
OK >> GO TO 12.
NG >> Replace condenser.Continuity should exist.
PBIB0509E

EC-598
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IGNITION SIGNAL
12.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect ignition coil harness connector.
4. Turn ignition switch ON.
5. Check voltage between ignition coil terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13.DETECT MALFUNCTIONING PART
Check the following.
lHarness for open or short between ignition coil and ECM relay
lHarness for open or short between ignition coil and ECM
>> Repair or replace harness or connectors.
14.CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and engine ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 15.
NG >> Repair open circuit or short to power in harness or connectors.
PBIB0509E
Voltage: Battery voltage
SEF107S
Continuity should exist.

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 continuity between ECM terminals 21, 22, 23, 24 and ignition coil terminal 3.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 16.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
16.CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer toEC-599, "
Component Inspection".
OK or NG
OK >> GO TO 17.
NG >> Replace ignition coil with power transistor.
17.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00B90
IGNITION COIL WITH POWER TRANSISTOR
1. Turn ignition switch "OFF".
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as follows.
CONDENSER
1. Turn ignition switch "OFF".
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals as 1 and 2.Continuity should exist.
Terminal No. (Polarity) ResistanceW[at 25°C(77°F)]
3(+)-2(-) Except0or¥
1 (+) - 3 (-)
Except 0
1 (+) - 2 (-)
SEF371Q
Resistance: Above 1 MWat 25°(77°F)
SEF124Y

EC-600
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IGNITION SIGNAL
Removal and Installation
EBS00B91
IGNITION COIL WITH POWER TRANSISTOR
Refer toEM-27, "IGNITION COIL".

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%

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 CONDITION DATA (DC Voltage)
13 PEVAP canister purge
volume control sole-
noid valve[Engine is running]
lIdle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lEngine speed is about 2,000 rpmApproximately 10V
PBIB0520E

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-603
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Wiring DiagramEBS00B95
TBWA0079E

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 EVAP purge hose connected to the EVAP canister.
3. Turn ignition switch "ON", and select "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT-II.
4. Start engine and let it idle.
5. Change the valve opening percentage with touching "Qu" or
"Qd" on CONSULT-II screen, and check for vacuum existence at
the EVAP purge hose under the following conditions.
Without CONSULT-II
1. Turn ignition switch "OFF".
2. Disconnect the EVAP purge hose connected to the EVAP canis-
ter.
3. Start engine and let it idle for at least 80 seconds.
4. Check for vacuum existence at the EVAP purge hose under the
following conditions.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK EVAP CANISTER
Refer toEC-649, "
Component Inspection".
Question
OK >>INSPECTION END
NG >> Replace EVAP canister.
PBIB0569E
Conditions Vacuum
At idle Should not exist.
Engine speed is about 2,000 rpm. Should exist.
PBIB0676E
Conditions Vacuum
At idle Should not exist.
Engine speed is about 2,000 rpm. Should exist.
PBIB0676E

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) for cracks or improper connection.
Refer toEC-648, "
EVAPORATIVE EMISSION LINE DRAWING".
OK or NG
OK >> GO TO 4.
NG >> Repair or reconnect the hose.
4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIR-
CUIT
1. Turn ignition switch “OFF”.
2. Disconnect EVAP canister purge volume control solenoid valve
harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between EVAP canister purge volume control
solenoid valve terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E60, F36
lFuse and fuse block (J/B) connector E103
l10A fuse
lHarness for open or short between EVAP canister purge volume control solenoid valve and fuse
>> Repair harness or connectors.
PBIB0501E
Voltage: Battery voltage
PBIB0148E

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 switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 13 and EVAP canister purge volume control solenoid
valve terminal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK (With CONSULT-II)>>GO TO 7.
OK (Without CONSULT-II)>>GO TO 8.
NG >> Repair open circuit or short to ground and short to power in harness or connectors.
7.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Start engine.
3. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II. Check that engine speed varies according to the
valve opening.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer toEC-607, "
Component Inspection".
OK or NG
OK >> GO TO 9.
NG >> Replace EVAP canister purge volume control solenoid valve.
9.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.
PBIB0569E