2004 INFINITI FX35 Service Manual

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INFINITI FX35 2004 Service Manual EC-284
[VQ35DE]
DTC P0222, P0223 TP SENSOR
Revision: 2004 November 2004 FX35/FX45
DTC P0222, P0223 TP SENSORPFP:16119
Component DescriptionABS00CH6
Electric throttle control actuator consists of throt

EC-284
[VQ35DE]
DTC P0222, P0223 TP SENSOR
Revision: 2004 November 2004 FX35/FX45
DTC P0222, P0223 TP SENSORPFP:16119
Component DescriptionABS00CH6
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
CONSULT-II Reference Value in Data Monitor ModeABS00CH7
Specification data are reference values.
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicABS00CH8
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
THRTL SEN1
THRTL SEN2*
Ignition switch: ON
(Engine stopped)
Shift lever: DAccelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0222
0222Throttle position sensor
1 circuit low inputAn excessively low voltage from the TP sensor
1 is sent to ECM.
Harness or connectors
(TP sensor 1 circuit is open or shorted.)
(APP sensor 2 circuit is shorted.)
Electric throttle control actuator
(TP sensor 1)
Accelerator pedal position sensor.
(APP sensor 2) P0223
0223Throttle position sensor
1 circuit high inputAn excessively high voltage from the TP sen-
sor 1 is sent to ECM.
Engine operation condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

Page 1626 of 4449

INFINITI FX35 2004 Service Manual DTC P0222, P0223 TP SENSOR
EC-285
[VQ35DE]
C
D
E
F
G
H
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MA
EC
Revision: 2004 November 2004 FX35/FX45
DTC Confirmation ProcedureABS00CH9
NOTE:
If DTC Confirmation Procedure has been previously c

Page 1627 of 4449

INFINITI FX35 2004 Service Manual EC-286
[VQ35DE]
DTC P0222, P0223 TP SENSOR
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00CHA
TBWM0428E

Page 1628 of 4449

INFINITI FX35 2004 Service Manual DTC P0222, P0223 TP SENSOR
EC-287
[VQ35DE]
C
D
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F
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MA
EC
Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
C

Page 1629 of 4449

INFINITI FX35 2004 Service Manual EC-288
[VQ35DE]
DTC P0222, P0223 TP SENSOR
Revision: 2004 November 2004 FX35/FX45
2. CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-I
1. Disconnect electric throttle control actuator harness co

Page 1630 of 4449

INFINITI FX35 2004 Service Manual DTC P0222, P0223 TP SENSOR
EC-289
[VQ35DE]
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EC
Revision: 2004 November 2004 FX35/FX45
6. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-4

Page 1631 of 4449

INFINITI FX35 2004 Service Manual EC-290
[VQ35DE]
DTC P0222, P0223 TP SENSOR
Revision: 2004 November 2004 FX35/FX45
Component InspectionABS00CHC
THROTTLE POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Perform EC-

Page 1632 of 4449

INFINITI FX35 2004 Service Manual DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
EC-291
[VQ35DE]
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EC
Revision: 2004 November 2004 FX35/FX45
DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE,

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
EC-291
[VQ35DE]
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EC
Revision: 2004 November 2004 FX35/FX45
DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
PFP:00000
On Board Diagnosis LogicABS006PS
When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-
shaft position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is occurring.
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)
On the first trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to over-
heating, the MIL will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions
for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will turn off.
If another misfire condition occurs that can damage the TWC on a second trip, the MIL will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will remain on.
If another misfire condition occurs that can damage the TWC, the MIL will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MIL will only
light when the misfire is detected on a second trip. During this condition, the ECM monitors the CKP sen-
sor signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
DTC Confirmation ProcedureABS0095P
CAUTION:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws when driv-
ing.
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.
Sensor Input Signal to ECM ECM function
Crankshaft position sensor (POS) Engine speed On board diagnosis of misfire
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0300
0300Multiple cylinder misfire
detectedMultiple cylinder misfire.
Improper spark plug
Insufficient compression
Incorrect fuel pressure
The injector circuit is open or shorted
Fuel injector
Intake air leak
The ignition signal circuit is open or
shorted
Lack of fuel
Signal plate
Heated oxygen sensor 1
Incorrect PCV hose connection P0301
0301No.1 cylinder misfire
detectedNo. 1 cylinder misfires.
P0302
0302No. 2 cylinder misfire
detectedNo. 2 cylinder misfires.
P0303
0303No. 3 cylinder misfire
detectedNo. 3 cylinder misfires.
P0304
0304No. 4 cylinder misfire
detectedNo. 4 cylinder misfires.
P0305
0305No. 5 cylinder misfire
detectedNo. 5 cylinder misfires.
P0306
0306No. 6 cylinder misfire
detectedNo. 6 cylinder misfires.

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