2007 INFINITI FX35 Service Manual

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INFINITI FX35 2007 Service Manual DTC P2118 THROTTLE CONTROL MOTOR EC-569
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Revision: 2006 July 2007 FX35/FX45
DTC P2118 THROTTLE CONTROL MOTORPFP:16119
Component DescriptionNBS004J4
The

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INFINITI FX35 2007 Service Manual EC-570
[VQ35DE]
DTC P2118 THROTTLE CONTROL MOTOR
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS004J7
TBWM1398E

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INFINITI FX35 2007 Service Manual DTC P2118 THROTTLE CONTROL MOTOR EC-571
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Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each termin

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INFINITI FX35 2007 Service Manual EC-572
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DTC P2118 THROTTLE CONTROL MOTOR
Revision: 2006 July 2007 FX35/FX45
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect electric throttle control act

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INFINITI FX35 2007 Service Manual DTC P2118 THROTTLE CONTROL MOTOR EC-573
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Revision: 2006 July 2007 FX35/FX45
Removal and InstallationNBS004JA
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to

Page 1950 of 4366

INFINITI FX35 2007 Service Manual EC-574
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DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
Revision: 2006 July 2007 FX35/FX45
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionNBS003TV
Electric throttle co

EC-574
[VQ35DE]
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
Revision: 2006 July 2007 FX35/FX45
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionNBS003TV
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throt-
tle valve and feeds the voltage signals to the ECM. The ECM judges the current opening angle of the throttle
valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening
angle properly in response to driving condition.
On Board Diagnosis LogicNBS003TW
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.
DTC Confirmation ProcedureNBS003TX
NOTE:
Perform PROCEDURE FOR MALFUNCTION A AND B first. If the DTC cannot be confirmed, perform
PROCEDURE FOR MALFUNCTION C.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A AND B
With CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Shift selector lever to D position and wait at least 3 seconds.
4. Shift selector lever to P, N position.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Turn ignition switch ON and wait at least 1 second.
7. Shift selector lever to D position and wait at least 3 seconds.
8. Shift selector lever to P, N position.
9. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
10. If DTC is detected, go to EC-575, "
Diagnostic Procedure" .
With GST
Follow the procedure “With CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2119
2119 Electric throttle control
actuator A)
Electric throttle control actuator does not func-
tion properly due to the return spring malfunc-
tion.
Electric throttle control actuator
B) Throttle valve opening angle in fail-safe mode is
not in specified range.
C) ECM detect the throttle valve is stuck open.
Detected items Engine operating condition in fail-safe mode
Malfunction A The ECM controls the electric throttle actuator by regulating the throttle opening around the idle position.
The engine speed will not rise more than 2,000 rpm.
Malfunction B ECM controls the electric throttle control actuator by regulating the throttle opening to 20 degrees or less.
Malfunction C While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or more.
SEF058Y

Page 1951 of 4366

INFINITI FX35 2007 Service Manual DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR EC-575
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Revision: 2006 July 2007 FX35/FX45
PROCEDURE FOR MALFUNCTION C
With CONSULT-II
1. Turn ignition s

Page 1952 of 4366

INFINITI FX35 2007 Service Manual EC-576
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DTC P2122, P2123 APP SENSOR
Revision: 2006 July 2007 FX35/FX45
DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionNBS003YD
The accelerator pedal position (APP) sensor is install

EC-576
[VQ35DE]
DTC P2122, P2123 APP SENSOR
Revision: 2006 July 2007 FX35/FX45
DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionNBS003YD
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 ModeNBS003YE
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 LogicNBS003YF
These self-diagnoses have the one trip detection logic.
NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-483, "
DTC P0643 SENSOR POWER SUPPLY" .
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
P2122
2122 Accelerator pedal posi-
tion sensor 1 circuit low
input An excessively low voltage from the APP sen-
sor 1 is sent to ECM.
Harness or connectors
(APP sensor 1 circuit is open or
shorted.)
Accelerator pedal position sensor
(APP sensor 1)
P2123
2123 Accelerator pedal posi-
tion sensor 1 circuit high
input An excessively high voltage from the APP sen-
sor 1 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.

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