Input/Output Signal Chart
| Sensor | Input signal to ECM | ECM function | Actuator |
|---|---|---|---|
| Crankshaft position sensor (POS) Camshaft position sensor (PHASE) |
Engine speed* 1 Piston position |
A/C compressor request signal | IPDM E/R ↓ Air conditioner relay ↓ Compressor |
| Engine coolant temperature sensor | Engine coolant temperature | ||
| Accelerator pedal position sensor | Accelerator pedal position | ||
| Battery | Battery voltage* 1 | ||
| Refrigerant pressure sensor | Refrigerant pressure | ||
| EPS control unit | EPS operation signal* 2 | ||
| Combination meter | Vehicle speed signal* 2 | ||
| BCM | A/C ON signal* 2 Blower fan signal* 2 |
* 1: ECM determines the start signal status by the signals of engine speed and battery voltage.
* 2: This signal is sent to the ECM through CAN communication line.