2008 INFINITI FX35 Service Manual

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Page 2353 of 3924

INFINITI FX35 2008 Service Manual
DTC P2127, P2128 APP SENSOREC-1113
< SERVICE INFORMATION > [VK45DE]
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EC
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1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON

Page 2354 of 3924

INFINITI FX35 2008 Service Manual
EC-1114
< SERVICE INFORMATION >[VK45DE]
DTC P2127, P2128 APP SENSOR
NG >> GO TO 7.
7.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-663,

Page 2355 of 3924

INFINITI FX35 2008 Service Manual
DTC P2127, P2128 APP SENSOREC-1115
< SERVICE INFORMATION > [VK45DE]
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>>
INSPECTION END
14.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
Component Ins

Page 2356 of 3924

INFINITI FX35 2008 Service Manual
EC-1116
< SERVICE INFORMATION >[VK45DE]
DTC P2135 TP SENSOR
DTC P2135 TP SENSOR
Component DescriptionINFOID:0000000001327016
Electric throttle control actuator
consists of throttle control motor,
th

EC-1116
< SERVICE INFORMATION >[VK45DE]
DTC P2135 TP SENSOR
DTC P2135 TP SENSOR
Component DescriptionINFOID:0000000001327016
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 t he 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-III Reference Value in Data Monitor ModeINFOID:0000000001327017
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 Diagn osis LogicINFOID:0000000001327018
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureINFOID:0000000001327019
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, 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 8V at idle.
1. Start engine and let it idle for 1 second.
2. Check DTC.
3. If DTC is detected, go to EC-1118, "
Diagnosis Procedure".
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
TP SEN 1-B1
TP SEN 2-B1* Ignition switch: ON
(Engine stopped)
Selector lever: D Accelerator 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
2135 Throttle position sensor
circuit range/perfor-
mance Rationally incorrect voltage is sent to ECM
compared with the signals from TP sensor 1
and TP sensor 2. Harness or connector
(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 (APP sensor 2)
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.
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2357 of 3924

INFINITI FX35 2008 Service Manual
DTC P2135 TP SENSOREC-1117
< SERVICE INFORMATION > [VK45DE]
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Wiring DiagramINFOID:0000000001327020
Specification data are reference values
and are measured between eac

Page 2358 of 3924

INFINITI FX35 2008 Service Manual
EC-1118
< SERVICE INFORMATION >[VK45DE]
DTC P2135 TP SENSOR
Diagnosis Procedure
INFOID:0000000001327021
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground sc

Page 2359 of 3924

INFINITI FX35 2008 Service Manual
DTC P2135 TP SENSOREC-1119
< SERVICE INFORMATION > [VK45DE]
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1. Disconnect electric throttle c
ontrol actuator (1) harness connec-
tor.
2. Turn ignition switch ON.
3. C

Page 2360 of 3924

INFINITI FX35 2008 Service Manual
EC-1120
< SERVICE INFORMATION >[VK45DE]
DTC P2135 TP SENSOR
>>
INSPECTION END
7.CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harnes

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