Nissan Sentra Service Manual: 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 (POS) | Engine speed* Piston position | Air conditioner cut control | IPDM E/R
↓ Air conditioner relay ↓ Compressor |
|
| Camshaft position sensor (PHASE) | ||||
| Engine coolant temperature sensor | Engine coolant temperature | |||
| Accelerator pedal position sensor | Accelerator pedal position | |||
| Battery | Battery voltage* | |||
| Refrigerant pressure sensor | Refrigerant pressure | |||
| EPS control unit | CAN communication | EPS operation signal | ||
| Combination meter | CAN communication | Vehicle speed signal | ||
| A/C auto amp. | CAN communication |
|
||
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
- When the accelerator pedal is fully depressed.
- When cranking the engine.
- At high engine speeds.
- When the engine coolant temperature becomes excessively high.
- When operating power steering during low engine speed or low vehicle speed.
- When engine speed is excessively low.
- When refrigerant pressure is excessively low or high.
Fuel filler cap warning system
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the
fuel filler being left uncapped and
malfunction occurrences after refueling, by ...
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 syst ...
Other materials:
List of voice commands
Main Menu
“Call”
“Phonebook”
“Recent Calls”
“Connect Phone”
When you press and release the
button on
the steering wheel, you can choose from the
commands on the Main Menu. The following
pages describe these commands and the commands
in each sub-menu.
Remember to wai ...
Automatic door locking and unlocking systems
The following functions can be set or cancelled:
■Switching the door unlock function (vehicles with a smart key system)
It is possible to set which doors the entry function unlocks using the
wireless
remote control.
1. Turn the engine switch off.
2. When the indicator light on the key sur ...
Moonroof does not operate properly
Diagnosis Procedure
1. Check bcm power supply and ground circuit
Check BCM power supply and ground circuit.
Refer to PWC-31, "BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) :
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Rep ...
