2005 NISSAN X-TRAIL ignition

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-889
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6. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIR-
CUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between EVAP canister purge volume control solenoid valve terminal 2 and
ECM terminal 19. 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 to EC-890, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace EVAP canister purge volume control solenoid valve.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-624, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
PBIB0569E

INJECTOR CIRCUIT
EC-893
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Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic ProcedureEBS0114L
1. INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
Ye s o r N o
Ye s > > G O T O 2 .
No >> GO TO 3.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
22
23
41
42G/B
R/B
L/B
Y/BInjector No. 3
Injector No. 1
Injector No. 4
Injector No. 2[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idleBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
PBIB0529E
PBIB0530E

EC-894
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INJECTOR CIRCUIT

2. CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
3. Make sure that each circuit produces a momentary engine
speed drop.
Without CONSULT-II
1. Start engine.
2. Listen to each injector operating sound.
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3. CHECK INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect injector harness connector.
3. Turn ignition switch ON.
4. Check voltage between injector terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
PBIB0133E
Clicking noise should be heard.
PBIB1986E
PBIB1970E
Voltage: Battery voltage
PBIB0582E

INJECTOR CIRCUIT
EC-895
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4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M61, F41

Harness connectors F1, F101

Fuse block (J/B) connector M1

10A fuse

Harness for open or short between injector and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector terminal 2 and ECM terminals 22, 23, 41, 42.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFONCTIONING PART
Check the following.

Harness connectors F101, F1

Harness for open or short between injector and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK INJECTOR
Refer to EC-896, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace injector.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-624, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.

VIAS
EC-903
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5. CHECK VACUUM TANK
Refer to EC-904, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace vacuum tank.
6. CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Disconnect VIAS control solenoid valve harness connector.
2. Turn ignition switch ON.
3. Check voltage between VIAS control solenoid valve terminal 1
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check harness for open or short between VIAS control solenoid valve and ECM relay.
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between VIAS control solenoid valve terminal 2 and ECM terminal 6.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB0947E
Voltage: Battery voltage
PBIB0173E
Continuity should exist.

EC-904
[QR (WITHOUT EURO-OBD)]
VIAS

9. CHECK VIAS CONTROL SOLENOID VALVE
Refer to EC-904, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace VIAS control solenoid valve.
10. CHECK INTERMITTENT INCIDENT
Refer to EC-624, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011I5
VIAS CONTROL SOLENOID VALVE
With CONSULT-II
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform “VIAS SOL VALVE” in “ACTIVE TEST” mode.
4. Check air passage continuity and operation delay time under the
following conditions.
Operation takes less than 1 second.
Without CONSULT-II
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Operation takes less than 1 second.
VACUUM TANK
1. Disconnect vacuum hose connected to vacuum tank.
2. Connect a vacuum pump to the port A of vacuum pump.
3. Apply vacuum and make sure that vacuum exists at the port B .
Condition
VIAS SOL VALVEAir passage continuity
between A and BAir passage continuity
between A and C
ON Yes No
OFF No Yes
PBIB0177E
ConditionAir passage continuity
between A and BAir passage continuity
between A and C
12V direct current supply
between terminals 1 and 2Ye s N o
No supply No Yes
MEC488B
PBIB0846E

EC-906
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FUEL PUMP CIRCUIT

FUEL PUMP CIRCUITPFP:17042
DescriptionEBS0114O
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel
pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor ModeEBS0114P
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump control Fuel pump relay
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON Operates for 1 second
Engine running and crankingOperates
When engine is stoppedStops in 1.5 seconds
Except as shown aboveStops
PBIB0513E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY

For 1 second after turning ignition switch ON

Engine running or crankingON

Except above conditions OFF

EC-908
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FUEL PUMP CIRCUIT

Specification data are reference values and are measured between each terminal and 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.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
114 B/OR Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch ON
[Engine is running]0 - 1.0V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)