2006 INFINITI FX35 Service Manual

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INFINITI FX35 2006 Service Manual DTC P2122, P2123 APP SENSOR EC-577
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Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS003YH
TBWM1404E

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INFINITI FX35 2006 Service Manual EC-578
[VQ35DE]
DTC P2122, P2123 APP SENSOR
Revision: 2006 December 2006 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM

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INFINITI FX35 2006 Service Manual DTC P2122, P2123 APP SENSOR EC-579
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Revision: 2006 December 2006 FX35/FX45
2. CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconne

Page 1964 of 4462

INFINITI FX35 2006 Service Manual EC-580
[VQ35DE]
DTC P2122, P2123 APP SENSOR
Revision: 2006 December 2006 FX35/FX45
6. CHECK ACCELERATOR PEDAL POSITON SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND
SHORT
1. Check harness continuity betwe

Page 1965 of 4462

INFINITI FX35 2006 Service Manual DTC P2122, P2123 APP SENSOR EC-581
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Revision: 2006 December 2006 FX35/FX45
Component InspectionNBS003YJ
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect al

Page 1966 of 4462

INFINITI FX35 2006 Service Manual EC-582
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DTC P2127, P2128 APP SENSOR
Revision: 2006 December 2006 FX35/FX45
DTC P2127, P2128 APP SENSORPFP:18002
Component DescriptionNBS003YL
The accelerator pedal position (APP) sensor is ins

EC-582
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DTC P2127, P2128 APP SENSOR
Revision: 2006 December 2006 FX35/FX45
DTC P2127, P2128 APP SENSORPFP:18002
Component DescriptionNBS003YL
The accelerator pedal position (APP) sensor is installed on the upper
end of the accelerator pedal assembly. The sensor detects the
accelerator position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of
the accelerator pedal and feed the voltage signals to the ECM. The
ECM judges the current opening angle of the accelerator pedal from
these signals and controls the throttle control motor based on these
signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine oper-
ation such as fuel cut.
CONSULT-II Reference Value in Data Monitor ModeNBS003YM
Specification data are reference values.
*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
On Board Diagnosis LogicNBS003YN
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.
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL SEN 1
Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released 0.5 - 1.0V
Accelerator pedal: Fully depressed 4.0 - 4.8V
ACCEL SEN 2*
Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released 0.3 - 1.2V
Accelerator pedal: Fully depressed 3.9 - 4.8V
CLSD THL POS
Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released ON
Accelerator pedal: Slightly depressed OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2127
2127 Accelerator pedal posi-
tion sensor 2 circuit low
input An excessively low voltage from the APP sen-
sor 2 is sent to ECM.
Harness or connectors
(APP sensor 2 circuit is open or
shorted.)
(TP sensor circuit shorted.)
Accelerator pedal position sensor
(APP sensor 2)
Electric throttle control actuator
(TP sensor 1 and 2)
P2128
2128 Accelerator pedal posi-
tion sensor 2 circuit high
input An excessively high voltage from the APP sen-
sor 2 is sent to ECM.
Engine operating 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 1967 of 4462

INFINITI FX35 2006 Service Manual DTC P2127, P2128 APP SENSOR EC-583
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Revision: 2006 December 2006 FX35/FX45
DTC Confirmation ProcedureNBS003YO
NOTE:
If DTC Confirmation Procedure has be

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INFINITI FX35 2006 Service Manual EC-584
[VQ35DE]
DTC P2127, P2128 APP SENSOR
Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS003YP
TBWM1405E

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