Input/Output Signal Chart
WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
INPUT/OUTPUT SIGNAL CHART
| Sensor | Input signal to ECM | ECM function | Actuator |
|---|---|---|---|
| Crankshaft position sensor (POS) Camshaft position sensor (PHASE) |
Engine speed*1 | Cooling fan control | IPDM E/R ↓ Cooling fan relay ↓ Cooling fan motor |
| Battery | Battery voltage*1 | ||
| Engine coolant temperature sensor | Engine coolant temperature | ||
| Refrigerant pressure sensor | Refrigerant pressure | ||
| Unified meter and A/C amp. | Air conditioner ON signal*2 | ||
| Vehicle speed*2 | |||
| *1: The ECM determines the start signal status by the signals of engine speed and battery voltage. *2: This signal is sent to ECM via the CAN communication line. |
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