Nissan Altima 2007-2012 Service Manual: P2118 throttle control motor
Description
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected? YES >> Go to EC-423, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in GI-45, "Circuit Inspection".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect electric throttle control actuator harness connector.
2. Disconnect ECM harness connector.
3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace.
3.CHECK THROTTLE CONTROL MOTOR
Refer to EC-424, "Component Inspection".
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 5.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace harness or connectors.
5.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Go to EC-424, "Special Repair Requirement".
>> INSPECTION END
Component Inspection
1.CHECK THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between electric throttle control actuator terminals as follows.
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Go to EC-424, "Special Repair Requirement".
>> INSPECTION END
Special Repair Requirement
1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to EC-29, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement" >> GO TO 2.
2.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-30, "IDLE AIR VOLUME LEARNING : Special Repair Requirement" >> END
P2101 electric throttle control
function
Description
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
...
P2119 electric throttle control
actuator
Description
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
...
Other materials:
Air breather hose
Exploded View
1. Air breather hose
2. Clip
3. Bracket
4. Air breather tube
5. CVT assembly
A. Paint mark
Removal and Installation
Refer to the figure for removal and installation.
CAUTION:
• Install air breather hose with paint mark facing upward.
• Insert air breather hose a m ...
Steering switch
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering switch circuit
changes depending on which button is pushed.
Diagnosis Procedure
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M46 and spiral ...
Vents
Side
Adjust air flow direction by moving the vent
slides.
Open or close the vents by using the dial. Move
the dial toward the to open the
vents or
toward the to close them.
Center
Rear ...