2006 INFINITI M35 air condition

EC-1368
[VK45DE]
DTC P2127, P2128 APP SENSOR
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS005OU
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body.
Refer to EC-885, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
47 LSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
82 WSensor ground
(APP sensor 1)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
83 PSensor ground
(APP sensor 2)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
90 LSensor power supply
(APP sensor 1)[Ignition switch: ON]Approximately 5V
91 BRSensor power supply
(APP sensor 2)[Ignition switch: ON]Approximately 5V
98 RAccelerator pedal position
sensor 2[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.20 - 0.55V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed1.85 - 2.40V
106 LGAccelerator pedal position
sensor 1[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.4 - 1.1V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed3.7 - 4.8V
1. Body ground M70 2. Body ground M16
PBIB2782E

DTC P2127, P2128 APP SENSOR
EC-1371
[VK45DE]
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Revision: 2006 January2006 M35/M45
12. CHECK APP SENSOR
Refer to EC-1371, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-806, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-806, "
Throttle Valve Closed Position Learning" .
4. Perform EC-807, "
Idle Air Volume Learning" .
>>INSPECTION END
14. CHECK INTERMITTENT INCIDENT
Refer to EC-878, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS005OV
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 sig-
nal), 98 (APP sensor 2 signal) and ground under the following
conditions.
4. If NG, replace accelerator pedal assembly and go to next step.
5. Perform EC-806, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-806, "
Throttle Valve Closed Position Learning" .
7. Perform EC-807, "
Idle Air Volume Learning" .
Removal and InstallationNBS005OW
ACCELERATOR PEDAL
Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
106
(Accelerator pedal position
sensor 1)Fully released 0.4 - 1.1V
Fully depressed 3.7 - 4.8V
98
(Accelerator pedal position
sensor 2)Fully released 0.20 - 0.55V
Fully depressed 1.85 - 2.40V
MBIB0023E

DTC P2135 TP SENSOR
EC-1375
[VK45DE]
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Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS005P2
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body.
Refer to EC-885, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
47 LSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
50 W Throttle position sensor 1[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully depressedLess than 4.75V
66 BSensor ground
(Throttle position sensor)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
69 R Throttle position sensor 2[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully depressedMore than 0.36V
91 BRSensor power supply
(APP sensor 2)[Ignition switch: ON]Approximately 5V
1. Body ground M70 2. Body ground M16
PBIB2782E

EC-1382
[VK45DE]
DTC P2138 APP SENSOR
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS005PA
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body.
Refer to EC-885, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
47 LSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
82 WSensor ground
(APP sensor 1)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
83 PSensor ground
(APP sensor 2)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
90 LSensor power supply
(APP sensor 1)[Ignition switch: ON]Approximately 5V
91 BRSensor power supply
(APP sensor 2)[Ignition switch: ON]Approximately 5V
98 RAccelerator pedal position
sensor 2[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.20 - 0.55V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed1.85 - 2.40V
106 LGAccelerator pedal position
sensor 1[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.4 - 1.1V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed3.7 - 4.8V
1. Body ground M70 2. Body ground M16
PBIB2782E

EC-1386
[VK45DE]
DTC P2138 APP SENSOR
Revision: 2006 January2006 M35/M45
15. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-806, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-806, "
Throttle Valve Closed Position Learning" .
4. Perform EC-807, "
Idle Air Volume Learning" .
>>INSPECTION END
16. CHECK INTERMITTENT INCIDENT
Refer to EC-878, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS005PB
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 sig-
nal), 98 (APP sensor 2 signal) and ground under the following
conditions.
4. If NG, replace accelerator pedal assembly and go to next step.
5. Perform EC-806, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-806, "
Throttle Valve Closed Position Learning" .
7. Perform EC-807, "
Idle Air Volume Learning" .
Removal and InstallationNBS005PC
ACCELERATOR PEDAL
Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
106
(Accelerator pedal position
sensor 1)Fully released 0.4 - 1.1V
Fully depressed 3.7 - 4.8V
98
(Accelerator pedal position
sensor 2)Fully released 0.20 - 0.55V
Fully depressed 1.85 - 2.40V
MBIB0023E

DTC P2A00, P2A03 A/F SENSOR 1
EC-1387
[VK45DE]
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Revision: 2006 January2006 M35/M45
DTC P2A00, P2A03 A/F SENSOR 1PFP:22693
Component DescriptionNBS005PD
The air fuel ratio (A/F) sensor 1 is a planar dual-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is the combination of a
Nernst concentration cell (sensor cell) with an oxygen-pump cell,
which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range (0.7 <
< air).
The exhaust gas components diffuse through the diffusion gap at the
electrode of the oxygen pump and Nernst concentration cell, where
they are brought to thermodynamic balance.
An electronic circuit controls the pump current through the oxygen-
pump cell so that the composition of the exhaust gas in the diffusion
gap remains constant at = 1. Therefore, the A/F sensor 1 is able to
indicate air/fuel ratio by this pumping of current. In addition, a heater
is integrated in the sensor to ensure the required operating tempera-
ture of 700 - 800
C (1,292 - 1,472F).
CONSULT-II Reference Value in Data Monitor ModeNBS005PE
Specification data are reference values.
On Board Diagnosis LogicNBS005PF
To judge the malfunction, the A/F signal computed by ECM from the A/F sensor 1 signal is monitored not to be
shifted to LEAN side or RICH side.
DTC Confirmation ProcedureNBS005PG
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 11V at idle.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON and select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CON-
SULT-II.
SEF579Z
SEF580Z
MONITOR ITEM CONDITION SPECIFICATION
A/F SEN1 (B1)
A/F SEN1 (B2)
Engine: After warming up Maintaining engine speed at 2,000 rpm Fluctuates around 1.5 V
DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P2A00
2A00
(Bank 1)
Air fuel ratio (A/F) sensor 1
circuit range/performance
The output voltage computed by ECM from the
A/F sensor 1 signal is shifted to the lean side
for a specified period.
The A/F signal computed by ECM from the A/F
sensor 1 signal is shifted to the rich side for a
specified period.
A/F sensor 1
A/F sensor 1 heater
Fuel pressure
Fuel injector
Intake air leaks P2A03
2A03
(Bank 2)

EC-1392
[VK45DE]
DTC P2A00, P2A03 A/F SENSOR 1
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic ProcedureNBS005PI
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body.
Refer to EC-885, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
24 SBA/F sensor 1 heater
(bank 2)[Engine is running]
Warm-up condition
Idle speedApproximately 5V
57 BR/W
A/F sensor 1 (bank 2)[Engine is running]
Warm-up condition
Idle speedApproximately 2.6V
58 G/OApproximately 2.3V
76 G/WApproximately 3.1V
77 GRApproximately 2.3V
PBIB1584E
1. Body ground M70 2. Body ground M16
PBIB2782E

EC-1398
[VK45DE]
VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS)
Revision: 2006 January2006 M35/M45
VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS)PFP:14956
DescriptionNBS005PK
SYSTEM DESCRIPTION
*: The ECM determines the start signal status by the signals of engine speed and battery voltage.
When the engine is running at low or medium speed, the power valve is fully closed. Under this condition, the
effective suction port length is equivalent to the total length of the intake manifold collector's suction port
including the intake valve. This long suction port provides increased air intake which results in improved suc-
tion efficiency and higher torque generation.
The surge tank and one-way valve are provided. When engine is running at high speed, the ECM sends the
signal to the VIAS control solenoid valve. This signal introduces the intake manifold vacuum into the power
valve actuator and therefore opens the power valve to two suction passages together in the collector.
Under this condition, the effective port length is equivalent to the length of the suction port provided indepen-
dently for each cylinder. This shortened port length results in enhanced engine output with reduced suction
resistance under high speeds.
The power valve is always open regardless of the engine speed when gear position is in N or P.
Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
VIAS control VIAS control solenoid valve Mass air flow sensor Amount of intake air
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Battery Battery voltage*
Engine coolant temperature sensor Engine coolant temperature
PBIB1876E