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:
C1609 Vehicle speed signal
DTC Logic
Dtc detection logic
DTC
Display item
Malfunction detected condition
Possible cause
C1609
CAN VHCL SPEED
Malfunction is detected in vehicle speed signal that
is output from abs actuator and electric unit (control
unit) via can communication. ...
Ecu diagnosis information
Bcm
Reference value
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following
functions. Refer to the Signal Tech II
User Guide for additional information.
Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTC ...
Water hose
Exploded View
Water outlet
Heater thermostat assembly
Hose clamp
CVT oil warmer
Water hose
To thermostat housing
To engine oil cooler
: Always replace after every
disassembly.
: NВ·m (kg-m, ft-lb)
Removal and Installation
REMOVAL
WARNING:
Do not remove the radi ...
