2007 INFINITI FX35 Service Manual

OBD port fuel mileage TPMS power steering fluid spark plugs

Page 2641 of 4366

INFINITI FX35 2007 Service Manual DTC P2127, P2128 APP SENSOR EC-1265
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
DTC P2127, P2128 APP SENSORPFP:18002
Component DescriptionNBS004FZ
The accelerat

DTC P2127, P2128 APP SENSOR EC-1265
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
DTC P2127, P2128 APP SENSORPFP:18002
Component DescriptionNBS004FZ
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor 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 ModeNBS004G0
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 LogicNBS004G1
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 is 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 2642 of 4366

INFINITI FX35 2007 Service Manual EC-1266
[VK45DE]
DTC P2127, P2128 APP SENSOR
Revision: 2006 July 2007 FX35/FX45
DTC Confirmation ProcedureNBS004G2
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignit

Page 2643 of 4366

INFINITI FX35 2007 Service Manual DTC P2127, P2128 APP SENSOR EC-1267
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS004G3
TBWM1355E

Page 2644 of 4366

INFINITI FX35 2007 Service Manual EC-1268
[VK45DE]
DTC P2127, P2128 APP SENSOR
Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM gro

Page 2645 of 4366

INFINITI FX35 2007 Service Manual DTC P2127, P2128 APP SENSOR EC-1269
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1. Disconnect accelerator pedal po

Page 2646 of 4366

INFINITI FX35 2007 Service Manual EC-1270
[VK45DE]
DTC P2127, P2128 APP SENSOR
Revision: 2006 July 2007 FX35/FX45
6. CHECK THROTTLE POSITION SENSOR
Refer to EC-892, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> GO TO 7

Page 2647 of 4366

INFINITI FX35 2007 Service Manual DTC P2127, P2128 APP SENSOR EC-1271
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
12. CHECK APP SENSOR
Refer to EC-1286, "
Component Inspection" .
OK or NG
OK

Page 2648 of 4366

INFINITI FX35 2007 Service Manual EC-1272
[VK45DE]
DTC P2135 TP SENSOR
Revision: 2006 July 2007 FX35/FX45
DTC P2135 TP SENSORPFP:16119
Component DescriptionNBS004G7
Electric throttle control actuator consists of throttle control motor

EC-1272
[VK45DE]
DTC P2135 TP SENSOR
Revision: 2006 July 2007 FX35/FX45
DTC P2135 TP SENSORPFP:16119
Component DescriptionNBS004G7
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 ModeNBS004G8
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 LogicNBS004G9
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: 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.

Load next 8 pages

Page: < prev 1-10 ... 2609-2616 2617-2624 2625-2632 2633-2640 2641-2648 2649-2656 2657-2664 2665-2672 2673-2680 ... 4368 next >

glove box sport mode warning lights airbag disable gas mileage open gas tank