Input/Output Signal Chart
WARNING: This page is about a different car, the 2016 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.
| Sensor | Input Signal to ECM | ECM function | Actuator |
|---|---|---|---|
| Crankshaft position sensor (POS) Camshaft position sensor (PHASE) |
Engine speed * 2 | Air conditioner cut control | IPDM E/R ↓ A/C relay ↓ Compressor |
| Engine coolant temperature sensor | Engine coolant temperature | ||
| Accelerator pedal position sensor | Accelerator pedal position | ||
| Battery | Battery voltage * 2 | ||
| Refrigerant pressure sensor | Refrigerant pressure | ||
| Power steering pressure sensor | Power steering operation | ||
| Unified meter and A/C amp. | Air conditioner ON signal*1 | ||
| Vehicle speed*1 |
*1: This signal is sent to the ECM via the CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.