2004 INFINITI FX35 Service Manual

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Page 1905 of 4449

INFINITI FX35 2004 Service Manual EC-564
[VQ35DE]
DTC P2127, P2128 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00CHZ
TBWM0506E

Page 1906 of 4449

INFINITI FX35 2004 Service Manual DTC P2127, P2128 APP SENSOR
EC-565
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Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.

Page 1907 of 4449

INFINITI FX35 2004 Service Manual EC-566
[VQ35DE]
DTC P2127, P2128 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1. Disconnect accelerator pedal position (APP) sensor harness
connector.

Page 1908 of 4449

INFINITI FX35 2004 Service Manual DTC P2127, P2128 APP SENSOR
EC-567
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Revision: 2004 November 2004 FX35/FX45
6. CHECK THROTTLE POSITION SENSOR
Refer to EC-575, "
Component Inspection" .
OK or NG
OK >>

Page 1909 of 4449

INFINITI FX35 2004 Service Manual EC-568
[VQ35DE]
DTC P2127, P2128 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
12. CHECK APP SENSOR
Refer to EC-568, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. REPLACE

Page 1910 of 4449

INFINITI FX35 2004 Service Manual DTC P2135 TP SENSOR
EC-569
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Revision: 2004 November 2004 FX35/FX45
DTC P2135 TP SENSORPFP:16119
Component DescriptionABS00CI3
Electric throttle control actuator consi

DTC P2135 TP SENSOR
EC-569
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Revision: 2004 November 2004 FX35/FX45
DTC P2135 TP SENSORPFP:16119
Component DescriptionABS00CI3
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 ModeABS00CI4
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 LogicABS00CI5
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, the 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
P2135
2135Throttle position sensor
circuit range/perfor-
mance problemRationally incorrect voltage is sent to ECM
compared with the signals from TP sensor 1
and TP sensor 2.
Harness or connector
(The TP sensor 1 and 2 circuit is open or
shorted.)
(APP sensor 2 circuit is shorted).
Electric throttle control actuator
(TP sensor 1 and 2)
Accelerator pedal position sensor.
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 1911 of 4449

INFINITI FX35 2004 Service Manual EC-570
[VQ35DE]
DTC P2135 TP SENSOR
Revision: 2004 November 2004 FX35/FX45
DTC Confirmation ProcedureABS00CI6
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition sw

Page 1912 of 4449

INFINITI FX35 2004 Service Manual DTC P2135 TP SENSOR
EC-571
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Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00CI7
TBWM0427E

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