Nissan Sentra Service Manual: Cooling fan control
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pressure, air conditioner ON signal. Then control system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
When IPDM E/R recieves a cooling fan speed request signal, IPDM E/R controls the cooling fan ralay 1, 2 and 3.
Air conditioning cut control
AIR CONDITIONING CUT CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor ( ...
Starter motor drive control
STARTER MOTOR DRIVE CONTROL : System Description
SYSTEN DIAGRAM
*1: CVT models
*2: M/T models
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
...
Other materials:
Removal and installation
ACCELERATOR CONTROL SYSTEM
Exploded View
Accelerator pedal assembly
Brake pedal bracket
Locating hook
Locating pin
Removal and Installation
REMOVAL
Remove instrument lower panel LH. Refer to IP-21, "Removal and
Installation".
Disconnect the harness connector ...
Vin registration
Description
VIN Registration is an operation to registering VIN in ECM. It must be
performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection &
Maintenance (I/M).
Work Procedure
1.CHECK VIN
Check the VIN of the vehicle and note it. ...
Cleaning exterior
In order to maintain the appearance of your vehicle,
it is important to take proper care of it.
To protect the paint surfaces, please wash your
vehicle as soon as you can:
after a rainfall to prevent possible damage
from acid rain.
after driving on coastal roads.
when contaminants suc ...
