Infiniti F50. Manual — part 496
DTC P2135 TP SENSOR
EC-625
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EC
10. Perform
EC-46, "Idle Air Volume Learning"
Removal and Installation
EBS00MNH
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to
![](/vehicles/zatt/pasieses/thed/cad.png)
EC-626
DTC P2138 APP SENSOR
DTC P2138 APP SENSOR
PFP:18002
Component Description
EBS00MNI
Electric throttle control actuator consists of throttle control motor,
acceleration pedal position sensor, throttle position sensor, etc.
Accelerator pedal position sensor is connected to the accelerator
pedal through the throttle drum and accelerator wire, and detects the
accelerator pedal position by the throttle drum rotation angle.
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 operation such as fuel cut.
CONSULT-II Reference Value in Data Monitor Mode
EBS00MNJ
Specification data are reference values.
*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differ from ECM terminal voltage signal.
On Board Diagnosis Logic
EBS00MNK
The MIL will not light up for this diagnosis.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
PBIB1741E
MONITOR ITEM
CONDITION
SPECIFICATION
ACCEL SEN1
ACCEL SEN2*
●
Ignition switch: ON
(engine stopped)
●
Selector lever: “D”
Accelerator pedal: Released
More than 0.36V
Accelerator pedal: Fully depressed
Less than 4.75V
CLSD THL POS
●
Ignition switch: ON
(engine stopped)
●
Selector lever: “D”
Accelerator pedal: Released
ON
Accelerator pedal: Slightly depressed
OFF
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2138
2138
Accelerator pedal position
sensor circuit range/perfor-
mance problem
Rationally incorrect voltage is sent to ECM
compared with the signals from APP sensor 1
and APP sensor 2.
●
Harness or connector
(The APP sensor 1 and 2 circuit is
open or shorted.)
●
Accelerator pedal position sensor 1
and 2
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.
![](/vehicles/zatt/pasieses/thed/therms.png)
DTC P2138 APP SENSOR
EC-627
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EC
DTC Confirmation Procedure
EBS00MNL
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1.
Turn ignition switch “ON”.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Start engine and let it idle for 1 second.
4.
EC-629, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
![](/vehicles/zatt/pasieses/thed/ivere.png)
EC-628
DTC P2138 APP SENSOR
Wiring Diagram
EBS00MNM
TBWM0126E
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