2005 NISSAN X-TRAIL DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

EC-3
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ECA
DTC P0172 FUEL INJECTION SYSTEM FUNCTION . 225
On Board Diagnosis Logic ................................... 225
DTC Confirmation Procedure ............................... 225
Wiring Diagram .................................................... 227
Diagnostic Procedure ........................................... 228
DTC P0222, P0223 TP SENSOR ........................... 231
Component Description ........................................ 231
CONSULT-II Reference Value in Data Monitor Mode
. 231
On Board Diagnosis Logic ................................... 231
DTC Confirmation Procedure ............................... 231
Wiring Diagram .................................................... 233
Diagnostic Procedure ........................................... 235
Component Inspection ......................................... 238
Removal and Installation ...................................... 238
DTC P0300 - P0304 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 4 CYLINDER MISFIRE ..................... 239
On Board Diagnosis Logic ................................... 239
DTC Confirmation Procedure ............................... 239
Diagnostic Procedure ........................................... 240
DTC P0327, P0328 KS ........................................... 245
Component Description ........................................ 245
On Board Diagnosis Logic ................................... 245
DTC Confirmation Procedure ............................... 245
Wiring Diagram .................................................... 246
Diagnostic Procedure ........................................... 247
Component Inspection ......................................... 249
Removal and Installation ...................................... 249
DTC P0335 CKP SENSOR (POS) .......................... 250
Component Description ........................................ 250
CONSULT-II Reference Value in Data Monitor Mode
. 250
On Board Diagnosis Logic ................................... 250
DTC Confirmation Procedure ............................... 250
Wiring Diagram .................................................... 251
Diagnostic Procedure ........................................... 253
Component Inspection ......................................... 255
Removal and Installation ...................................... 256
DTC P0340 CMP SENSOR (PHASE) ..................... 257
Component Description ........................................ 257
On Board Diagnosis Logic ................................... 257
DTC Confirmation Procedure ............................... 257
Wiring Diagram .................................................... 258
Diagnostic Procedure ........................................... 259
Component Inspection ......................................... 262
Removal and Installation ...................................... 263
DTC P0420 THREE WAY CATALYST FUNCTION . 264
On Board Diagnosis Logic ................................... 264
DTC Confirmation Procedure ............................... 264
Overall Function Check ........................................ 265
Diagnostic Procedure ........................................... 266
DTC P0444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE .............................. 269
Description ........................................................... 269
CONSULT-II Reference Value in Data Monitor Mode
. 269
On Board Diagnosis Logic ................................... 269
DTC Confirmation Procedure ............................... 270
Wiring Diagram .................................................... 271Diagnostic Procedure ...........................................273
Component Inspection ..........................................275
Removal and Installation ......................................275
DTC P0500 VSS ......................................................276
Description ............................................................276
On Board Diagnosis Logic ....................................276
DTC Confirmation Procedure ...............................276
Overall Function Check ........................................276
Diagnostic Procedure ...........................................277
DTC P0550 PSP SENSOR .....................................278
Component Description ........................................278
CONSULT-II Reference Value in Data Monitor Mode
.278
On Board Diagnosis Logic ....................................278
DTC Confirmation Procedure ...............................278
Wiring Diagram .....................................................279
Diagnostic Procedure ...........................................280
Component Inspection ..........................................282
Removal and Installation ......................................282
DTC P0605 ECM .....................................................283
Component Description ........................................283
On Board Diagnosis Logic ....................................283
DTC Confirmation Procedure ...............................283
Diagnostic Procedure ...........................................284
DTC P1065 ECM POWER SUPPLY .......................286
Component Description ........................................286
On Board Diagnosis Logic ....................................286
DTC Confirmation Procedure ...............................286
Wiring Diagram .....................................................287
Diagnostic Procedure ...........................................288
DTC P1111 IVT CONTROL SOLENOID VALVE .....290
Component Description ........................................290
CONSULT-II Reference Value in Data Monitor Mode
.290
On Board Diagnosis Logic ....................................290
DTC Confirmation Procedure ...............................290
Wiring Diagram .....................................................291
Diagnostic Procedure ...........................................292
Component Inspection ..........................................293
Removal and Installation ......................................293
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .............................................................294
Component Description ........................................294
On Board Diagnosis Logic ....................................294
DTC Confirmation Procedure ...............................294
Diagnostic Procedure ...........................................295
Removal and Installation ......................................295
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................296
Description ............................................................296
On Board Diagnosis Logic ....................................296
DTC Confirmation Procedure ...............................296
Wiring Diagram .....................................................297
Diagnostic Procedure ...........................................301
Component Inspection ..........................................304
Removal and Installation ......................................305
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .....................................................................306
Component Description ........................................306

TROUBLE DIAGNOSIS
EC-77
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DTC Inspection Priority ChartEBS010LQ
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC U1000 and/or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC
U1000 and U1001. Refer to EC-133, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
*: For QR25DE engine modelsPriority Detected items (DTC)
1

U1000 U1001 CAN communication line

P0102 P0103 Mass air flow sensor

P0112 P0113 Intake air temperature sensor

P0117 P0118 Engine coolant temperature sensor

P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor

P0327 P0328 Knock sensor

P0335 Crankshaft position sensor (POS)

P0340 Camshaft position sensor (PHASE)

P0500 Vehicle speed sensor

P0605 ECM

P0705 Park/Neutral position (PNP) sensor

P1229 Sensor power supply

P1610-P1615 NATS

P1706 Park/Neutral position (PNP) switch

P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
2

P0031 P0032 Heated oxygen sensor 1 heater

P0037 P0038 Heated oxygen sensor 2 heater

P0132 P0133 P0134 P1143 P1144 Heated oxygen sensor 1

P0138 P0139 P1146 P1147 Heated oxygen sensor 2

P0444 EVAP canister purge volume control solenoid valve

P0550 Power steering pressure sensor

P0710 P0720 P725 P0740 P0745 P0750 P0755 P1705 P1760 A/T related sensors and solenoid valves

P1065 ECM power supply

P 1111 I n ta k e v a l v e t i m i n g c o n t r o l s o l e n o i d v a l v e

P1122 Electric throttle control function

P1124 P1126 Throttle control motor relay

P1128 Throttle control mother

P1211 TCS control unit

P1212 TCS communication line

P1720 Vehicle speed sensor

P1805 Brake switch
3

P0011 Intake valve timing control

P0171 P0172 Fuel injection system function

P0300 - P0304 Misfire

P0420 Three way catalyst function

P0731 - P0734 A/T function

P1121 Electric throttle control actuator

P1217 Engine over temperature (OVERHEAT)

P1564 ASCD steering switch*

P1572 ASCD brake switch*

P1574 ASCD vehicle speed sensor*

DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-269
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DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionEBS010QC
SYSTEM DESCRIPTION
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM through CAN communication line.
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 ModeEBS010QD
Specification data are reference values.
On Board Diagnosis LogicEBS010QE
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
1
EVAP canister
purge flow controlEVAP canister purge volume
control solenoid valve Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Battery
Battery voltage*1
Throttle position sensor Throttle position
Accelerator pedal position sensor Closed throttle position
Heated oxygen sensor 1Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Wheel sensor*
2Vehicle speed
SEF337U
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V

Engine: After warming up

Shift lever: P or N (A/T), Neutral
(M/T)

Air conditioner switch: OFF

No loadIdle 0%
2,000 rpm 20 - 30%
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0444
0444EVAP canister purge volume
control solenoid valve circuit
openAn excessively low voltage signal is sent
to ECM through the valve

Harness or connectors
(The solenoid valve circuit is open or
shorted.)

EVAP canister purge volume control
solenoid valve

EC-270
[QR (WITH EURO-OBD)]
DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

DTC Confirmation ProcedureEBS010QF
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm battery voltage is more than 11V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 13 seconds.
4. If 1st trip DTC is detected, go to EC-273, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y

DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-271
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Wiring DiagramEBS010QG
TBWA0609E

EC-272
[QR (WITH EURO-OBD)]
DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

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.) TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
19 PEVAP canister purge vol-
ume control solenoid valve[Engine is running]

Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Engine speed is about 2,000 rpm (More than
100 seconds after starting engine)Approximately 10V
PBIB0050E
PBIB0520E

DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-273
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Diagnostic ProcedureEBS010QH
1. 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 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M61, F41

Harness for open or short between EVAP canister purge volume control solenoid valve and ECM relay.

Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
>> Repair harness or connectors.
PBIB1993E
PBIB1968E
Voltage: Battery voltage
PBIB0148E

EC-274
[QR (WITH EURO-OBD)]
DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

3. 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 4.
OK (Without CONSULT-II)>>GO TO 5.
NG >> Repair open circuit or short to ground and short to power in harness or connectors.
4. 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 6.
NG >> GO TO 5.
5. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-275, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace EVAP canister purge volume control solenoid valve.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-124, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
PBIB0569E