2006 INFINITI M35 stall

EC-1328
[VK45DE]
DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2006 January2006 M35/M45
Without CONSULT-II
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Operation takes less than 1 second.
Removal and InstallationNBS005NL
VIAS CONTROL SOLENOID VALVE
Refer to EM-179, "INTAKE MANIFOLD" .
ConditionAir passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
12V direct current supply
between terminals 1 and 2Ye s N o
No supply No Yes
SEF313Q

DTC P1805 BRAKE SWITCH
EC-1337
[VK45DE]
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Revision: 2006 January2006 M35/M45
Component InspectionNBS005NS
STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch terminals 1 and 2
under the following conditions.
4. If NG, adjust stop lamp switch installation, refer to BR-6,
"BRAKE PEDAL" , and perform step 3 again.
ICC BRAKE HOLD RELAY
1. Check continuity between ICC brake hold relay terminals 3 and
5 under the following conditions.
2. If NG, replace ICC brake hold relay.
Condition Continuity
Brake pedal: Fully released Should not exist
Brake pedal: Slightly depressed Should exist
PBIA9489J
Condition Continuity
12V direct current supply between terminals
1 and 2Should not exist
No current supply Should exist
PBIB0098E

EC-1350
[VK45DE]
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
Revision: 2006 January2006 M35/M45
14. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-806, "
Throttle Valve Closed Position Learning" .
3. Perform EC-807, "
Idle Air Volume Learning" .
>>INSPECTION END
Component InspectionNBS005O4
THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between terminals 5 and 6.
3. If NG, replace electric throttle control actuator and go to next
step.
4. Perform EC-806, "
Throttle Valve Closed Position Learning" .
5. Perform EC-807, "
Idle Air Volume Learning" .
Removal and InstallationNBS005O5
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-179, "INTAKE MANIFOLD" . Resistance: Approximately 1 - 15
[at 25 C (77F)]
PBIB2909E

DTC P2118 THROTTLE CONTROL MOTOR
EC-1355
[VK45DE]
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Revision: 2006 January2006 M35/M45
Removal and InstallationNBS005OC
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-179, "INTAKE MANIFOLD" .

EC-1356
[VK45DE]
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
Revision: 2006 January2006 M35/M45
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionNBS005OD
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throt-
tle valve and feeds the voltage signals to the ECM. The ECM judges the current opening angle of the throttle
valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening
angle properly in response to driving condition.
On Board Diagnosis LogicNBS005OE
This self-diagnosis has one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureNBS005OF
NOTE:
Perform PROCEDURE FOR MALFUNCTION A AND B first. If the DTC cannot be confirmed, perform
PROCEDURE FOR MALFUNCTION C.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A AND B
With CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Shift selector lever to D position and wait at least 3 seconds.
4. Shift selector lever to P position.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Turn ignition switch ON and wait at least 1 second.
7. Shift selector lever to D position and wait at least 3 seconds.
8. Shift selector lever to P position.
9. Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.
10. If DTC is detected, go to EC-1357, "
Diagnostic Procedure" .
With GST
Follow the procedure “With CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2119
2119Electric throttle control
actuatorA)Electric throttle control actuator does not func-
tion properly due to the return spring malfunc-
tion.
Electric throttle control actuator
B)Throttle valve opening angle in fail-safe mode is
not in specified range.
C) ECM detect the throttle valve is stuck open.
Detected items Engine operating condition in fail-safe mode
Malfunction AThe ECM controls the electric throttle actuator by regulating the throttle opening around the idle position.
The engine speed will not rise more than 2,000 rpm.
Malfunction B ECM controls the electric throttle control actuator by regulating the throttle opening to 20 degrees or less.
Malfunction CWhile the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or more.
SEF058Y

EC-1358
[VK45DE]
DTC P2122, P2123 APP SENSOR
Revision: 2006 January2006 M35/M45
DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionNBS005OH
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 ModeNBS005OI
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 LogicNBS005OJ
These self-diagnoses have the one trip detection logic.
NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-1218, "
DTC P0643 SENSOR POWER SUPPLY" .
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
ACCEL SEN 2*
Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.4 - 1.1V
Accelerator pedal: Fully depressed 3.7 - 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
2122Accelerator pedal posi-
tion sensor 1 circuit low
inputAn 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
2123Accelerator pedal posi-
t io n s e n so r 1 ci rc u i t h i g h
inputAn 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.

EC-1364
[VK45DE]
DTC P2122, P2123 APP SENSOR
Revision: 2006 January2006 M35/M45
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 InstallationNBS005OO
ACCELERATOR PEDAL
Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" .

DTC P2127, P2128 APP SENSOR
EC-1365
[VK45DE]
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Revision: 2006 January2006 M35/M45
DTC P2127, P2128 APP SENSORPFP:18002
Component DescriptionNBS005OP
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 ModeNBS005OQ
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 LogicNBS005OR
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
ACCEL SEN 2*
Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.4 - 1.1V
Accelerator pedal: Fully depressed 3.7 - 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
2127Accelerator pedal posi-
tion sensor 2 circuit low
inputAn 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
2128Accelerator pedal posi-
tion sensor 2 circuit high
inputAn 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.