2004 INFINITI FX35 Service Manual

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Page 2497 of 4449

INFINITI FX35 2004 Service Manual EC-1156
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DTC P1229 SENSOR POWER SUPPLY
Revision: 2004 November 2004 FX35/FX45
DTC P1229 SENSOR POWER SUPPLYPFP:16119
On Board Diagnosis LogicABS00CB8
This self-diagnosis has the one trip detec

Page 2498 of 4449

INFINITI FX35 2004 Service Manual DTC P1229 SENSOR POWER SUPPLY
EC-1157
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Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00CBA
TBWM0420E

Page 2499 of 4449

INFINITI FX35 2004 Service Manual EC-1158
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DTC P1229 SENSOR POWER SUPPLY
Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM

Page 2500 of 4449

INFINITI FX35 2004 Service Manual DTC P1229 SENSOR POWER SUPPLY
EC-1159
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Revision: 2004 November 2004 FX35/FX45
3. CHECK SESNRO POWER SUPPLY CIRCUITS
Check harness for short to power and short to grou

Page 2501 of 4449

INFINITI FX35 2004 Service Manual EC-1160
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DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2004 November 2004 FX35/FX45
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionABS

EC-1160
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DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2004 November 2004 FX35/FX45
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionABS00CBC
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 ModeABS00CBD
Specification data are reference values.
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 vol-
ume 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 Accelerator pedal position
Heated oxygen sensor 1Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
Wheel sensor*
2Vehicle speed
SEF337U
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V
Engine: After warming up
Air conditioner switch: OFF
Shift lever: N
No loadIdle 0%
2,000 rpm —

Page 2502 of 4449

INFINITI FX35 2004 Service Manual DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-1161
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C
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Revision: 2004 November 2004 FX35/FX45
On Board Diagnosis LogicABS00CBE
DTC Confirmation Procedur

Page 2503 of 4449

INFINITI FX35 2004 Service Manual EC-1162
[VK45DE]
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00CBG
TBWM0246E

Page 2504 of 4449

INFINITI FX35 2004 Service Manual DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-1163
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EC
Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured b

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