Nissan Sentra Service Manual: Throttle valve closed position learning
Description
Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time the harness connector of the electric throttle control actuator or ECM is disconnected or electric throttle control actuator inside is cleaned.
Work Procedure
1.START
With CONSULT
- Turn ignition switch ON.
- Select “CLSD THL POS LEARN” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
- Follow the instructions on the CONSULT display
- Turn ignition switch OFF and wait at least 10 seconds.
Check that throttle valve moves during the above 10 seconds by confirming the operating sound.
Without CONSULT
- Start the engine.
NOTE:
Engine coolant temperature is 25В°C (77В°F) or less before engine starts.
- Warm up the engine.
NOTE:
Raise engine coolant temperature until it reaches 65В°C (149В°F) or more.
- Turn ignition switch OFF and wait at least 10 seconds.
Check that throttle valve moves during the above 10 seconds by confirming the operating sound.
>> END
Accelerator pedal released position
learning
Description
Accelerator Pedal Released Position Learning is a function of ECM to learn
the fully released position of the
accelerator pedal by monitoring the accelerator pedal position sensor outp ...
Idle air volume learning
Description
Idle Air Volume Learning is a function of ECM to learn the idle air volume
that keeps each engine idle speed
within the specific range. It must be performed under any of the following ...
Other materials:
Dlc branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the data link connector for
damage, bend and loose connection
(connector side and harness side).
Is the inspection resul ...
Anti-pinch inspection
Description
If any of the following operations are performed, the initialization is
necessary for normal operation of antipinch
function.
Disconnection and connection of battery cable from negative terminal.
When power window main switch replaced.
Electric power supply to power window ma ...
Replacing
Replace the wiper blades if they are worn.
To replace the windshield wiper blades, follow
the procedure below:
When ignition switch is ON or within
60 seconds after placing the ignition switch
from ON to OFF position.
Quickly push the windshield wiper and
washer lever to the mist pos ...
