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:
Precaution
Precaution for supplemental restraint system (srs) "air bag" and "seat
belt pre-tensioner"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injur ...
P0101, P0102, P0103 MAF Sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0101
MAF SEN/CIRCUIT-B1
(Mass or volume air flow “A”
circuit range/performance)
An excessively high voltage from the mass ...
Regulatory Information
FCC Regulatory information
CAUTION: To maintain compliance with
FCC’s RF exposure guidelines, use only the
supplied antenna. Unauthorized antenna,
modification, or attachments could damage
the transmitter and may violate FCC regulations.
Operation is subject to the following two cond ...
