System Description
ECM FUNCTION CHART
| Sensor | Input Signal to ECM | ECM Function | Actuator |
|---|---|---|---|
| Camshaft position sensor (PHASE) | Engine speed | Heated oxygen sensor 2 heater control | Heated oxygen sensor 2 heater |
| Crankshaft position sensor (POS) | |||
| Engine coolant temperature sensor | Engine coolant temperature | ||
| Mass air flow sensor | Amount of intake air |
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, amount of intake air and engine coolant temperature.