2007 INFINITI M35 Factory Service Manual

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Page 2873 of 4647

INFINITI M35 2007 Factory Service Manual EC-1344
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DTC P2127, P2128 APP SENSOR
Revision: 2007 April2007 M35/M45
DTC Confirmation ProcedureNBS005OS
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition

Page 2874 of 4647

INFINITI M35 2007 Factory Service Manual DTC P2127, P2128 APP SENSOR
EC-1345
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Revision: 2007 April2007 M35/M45
Wiring DiagramNBS005OT
TBWT1502E

Page 2875 of 4647

INFINITI M35 2007 Factory Service Manual EC-1346
[VK45DE]
DTC P2127, P2128 APP SENSOR
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground

Page 2876 of 4647

INFINITI M35 2007 Factory Service Manual DTC P2127, P2128 APP SENSOR
EC-1347
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Revision: 2007 April2007 M35/M45
2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1. Disconnect accelerator pedal position (APP) sens

Page 2877 of 4647

INFINITI M35 2007 Factory Service Manual EC-1348
[VK45DE]
DTC P2127, P2128 APP SENSOR
Revision: 2007 April2007 M35/M45
6. CHECK THROTTLE POSITION SENSOR
Refer to EC-938, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> GO TO 7.
7. RE

Page 2878 of 4647

INFINITI M35 2007 Factory Service Manual DTC P2127, P2128 APP SENSOR
EC-1349
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Revision: 2007 April2007 M35/M45
12. CHECK APP SENSOR
Refer to EC-1349, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >>

Page 2879 of 4647

INFINITI M35 2007 Factory Service Manual EC-1350
[VK45DE]
DTC P2135 TP SENSOR
Revision: 2007 April2007 M35/M45
DTC P2135 TP SENSORPFP:16119
Component DescriptionNBS005OX
Electric throttle control actuator consists of throttle control motor,

EC-1350
[VK45DE]
DTC P2135 TP SENSOR
Revision: 2007 April2007 M35/M45
DTC P2135 TP SENSORPFP:16119
Component DescriptionNBS005OX
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 ModeNBS005OY
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 LogicNBS005OZ
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.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
THRTL SEN 1
THRTL SEN 2*
Ignition switch: ON
(Engine stopped)
Selector 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/performanceRationally 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.

Page 2880 of 4647

INFINITI M35 2007 Factory Service Manual DTC P2135 TP SENSOR
EC-1351
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Revision: 2007 April2007 M35/M45
DTC Confirmation ProcedureNBS005P0
NOTE:
If DTC Confirmation Procedure has been previously conducted, al

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