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System Description
 
 
 
 
SYSTEM DIAGRAM
Component partsFunction
Crankshaft position sensorCrankshaft Position Sensor.
Exhaust camshaft position sensorExhaust Camshaft Position Sensor.
Engine coolant temperature sensorEngine Coolant Temperature Sensor.
Accelerator pedal position sensorAccelerator Pedal Position Sensor.
BatteryECM receives the battery voltage signal.
Refrigerant pressure sensorRefrigerant Pressure Sensor.
Power steering control moduleECM receives the EPS operation signal via CAN communication.
Combination meterECM receives the vehicle speed signal via CAN communication.
A/C amp.ECM receives the A/C ON signal via CAN communication.
ECMECM.
IPDM E/RECM transmits the compressor control signal via CAN communication.
CompressorAUTOMATIC AIR CONDITIONER A/C Compressor.
MANUAL AIR CONDITIONER A/C Compressor.
 
 
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
  • 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.