Nissan Sentra manuals

Nissan Sentra Service Manual: Air conditioning cut control

Nissan Sentra Service Manual / Engine / Engine control system / System / Air conditioning cut control

AIR CONDITIONING CUT CONTROL : System Description

SYSTEM DIAGRAM

INPUT/OUTPUT SIGNAL CHART


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
  • A/C ON signal
  • Blower fan ON signal

*: 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.

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:

Symptom diagnosis
Squeak and rattle trouble diagnoses Work Flow CUSTOMER INTERVIEW Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diagnostic Worksheet during the interview to document the facts and conditions when the noise occurs and any custome ...

CVT Oil warmer
Exploded View Transaxle assembly O-ring CVT oil warmer CVT fluid Removal and Installation REMOVAL WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure coolant escaping from the radiator. Wrap a thick cloth around the cap ...

Ipdm-e 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 ipdm e/r for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? Yes ...

В© 2014-2019 Copyright www.nisentra.com