Input/Output Signal Chart
INPUT/OUTPUT SIGNAL CHART
| Sensor | Input Signal to ECM | ECM function | Actuator | ||||
|---|---|---|---|---|---|---|---|
| Air conditioner switch(1) | Air conditioner ON signal | Air conditioner cut control | IPDM E/R ↓ Air conditioner relay ↓ Compressor |
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| Accelerator pedal position sensor | Accelerator pedal position | ||||||
| Crankshaft position sensor (POS) Camshaft position sensor (PHASE) |
Engine speed(2) | ||||||
| Engine coolant temperature sensor | Engine coolant temperature | ||||||
| Battery | Battery voltage(2) | ||||||
| Refrigerant pressure sensor | Refrigerant pressure | ||||||
| EPS control unit | Power steering operation | ||||||
| ABS actuator and electric unit (control unit) | Vehicle speed(1) | ||||||
| BCM | Air conditioner ON signal(1) | ||||||
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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.