Input/Output Signal Chart
WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
| Sensor/Unit | Input Signal to ECM | ECM function | Actuator |
|---|---|---|---|
| Crankshaft position sensor (POS) Camshaft position sensor (PHASE) |
Engine speed | Cooling fan control | HPCM ↓ IPDM E/R ↓ Cooling fan control module ↓ Cooling fan motor |
| Engine coolant temperature sensor | Engine coolant temperature | ||
| Refrigerant pressure sensor | Refrigerant pressure | ||
| Combination meter | Vehicle speed | ||
| A/C auto amp. → HPCM | A/C ON signal | ||
| A/C evaporator temperature | |||
| Target A/C evaporator temperature | |||
| Blower fan ON signal | |||
| *: This signal is sent to ECM via the CAN communication line. | |||