Input/Output Signal Chart
| Sensor | Input signal to ECM | ECM function | Actuator | |
|---|---|---|---|---|
| Crankshaft position sensor (POS) | Engine speed* | Cooling fan control | IPDM E/R ↓ Cooling fan control module ↓ Cooling fan motor |
|
| Camshaft position sensor (PHASE) | ||||
| Engine coolant temperature sensor | Engine coolant temperature | |||
| Refrigerant pressure sensor | Refrigerant pressure | |||
| Battery | Battery voltage* | |||
| Combination meter | CAN communication | Vehicle speed signal | ||
| BCM | CAN communication | A/C ON signal | ||
| A/C evaporator temperature* | ||||
| Target A/C evaporator temperature* | ||||
| Blower fan ON signal * | ||||
* : The ECM determines the start signal status by the signals of engine speed and battery voltage.