2005 INFINITI FX35 Service Manual

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Page 2689 of 4731

INFINITI FX35 2005 Service Manual EC-1296
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DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2005 July 2005 FX
Removal and InstallationABS00E5Q
VIAS CONTROL SOLENOID VALVE
Refer to EM-178, "INTAKE MANIFOLD" .

Page 2690 of 4731

INFINITI FX35 2005 Service Manual DTC P1805 BRAKE SWITCH EC-1297
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Revision: 2005 July 2005 FX
DTC P1805 BRAKE SWITCHPFP:25320
DescriptionABS007VH
Brake switch signal is applied to the EC

Page 2691 of 4731

INFINITI FX35 2005 Service Manual EC-1298
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DTC P1805 BRAKE SWITCH
Revision: 2005 July 2005 FX
Wiring DiagramABS007VL
TBWM0423E

Page 2692 of 4731

INFINITI FX35 2005 Service Manual DTC P1805 BRAKE SWITCH EC-1299
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Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each terminal and ground.

Page 2693 of 4731

INFINITI FX35 2005 Service Manual EC-1300
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DTC P1805 BRAKE SWITCH
Revision: 2005 July 2005 FX
3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between s

Page 2694 of 4731

INFINITI FX35 2005 Service Manual DTC P1805 BRAKE SWITCH EC-1301
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Revision: 2005 July 2005 FX
Component InspectionABS007VN
STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect st

Page 2695 of 4731

INFINITI FX35 2005 Service Manual EC-1302
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DTC P2122, P2123 APP SENSOR
Revision: 2005 July 2005 FX
DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionABS007VO
The accelerator pedal position sensor is installed on the up

EC-1302
[VK45DE]
DTC P2122, P2123 APP SENSOR
Revision: 2005 July 2005 FX
DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionABS007VO
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 ModeABS007VP
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 LogicABS007VQ
These self-diagnoses have the one trip detection logic.
NOTE:
If DTC P2122 or P2123 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229.
Refer to EC-1229
.
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.

Page 2696 of 4731

INFINITI FX35 2005 Service Manual DTC P2122, P2123 APP SENSOR EC-1303
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Revision: 2005 July 2005 FX
DTC Confirmation ProcedureABS007VR
NOTE:
If DTC Confirmation Procedure has been previo

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