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. The throttle position sensor it provides feedback to the ECM, when opens/closes the throttle valve in response to driving conditions via the throttle control motor.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> 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-1443, "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 malfunctioning part.
3.CHECK THROTTLE CONTROL MOTOR
Refer to EC-1444, "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-1445, "Special Repair Requirement".
>> INSPECTION END
Component Inspection
1.CHECK THROTTLE CONTROL MOTOR
1. Turn ignition switch OFF.
2. Disconnect electric throttle control actuator harness connector.
3. Check resistance between electric throttle control actuator terminals as per the following.
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-1442, "Special Repair Requirement".
>> INSPECTION END
Special Repair Requirement
1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to EC-1053, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement" >> GO TO 2.
2.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-1053, "IDLE AIR VOLUME LEARNING : Special Repair Requirement" >> END
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Audio antenna (sedan)
Location of Antenna
1. In-line connectors M87, M501
2. Audio unit harness
3. Audio unit
4. Satellite antenna
5. Audio antenna feeder
6. Satellite radio antenna feeder
7. Window Antenna
8. Antenna amp.
9. Satellite radio tuner
Window Antenna Repair
ELEMENT CHECK
1. Attach probe circuit ...
Light reminder warning chime
System Diagram
System Description
DESCRIPTION
With ignition switch in OFF or ACC position, driver door open, and lighting
switch in 1ST or 2ND position, the
light warning chime will sound.
• BCM detects ignition switch in OFF or ACC position, door switch LH ON, and
lighting switch i ...
P0447 Evap canister vent control valve
Description
The EVAP canister vent control valve is located on the EVAP canister
and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the ca ...