The fuel pump control module (FPCM) controls the discharging volume of the fuel pump by the FPCM control signals (Low/Mid/Hi) depending on driving conditions.
Conditions
| Amount of fuel flow
| Supplied voltage
|
- For 1 seconds after turning ignition switch
- Engine is running under low load and low speed conditions
| Low
| Approximately 8.5 V
|
- Engine cranking
- Engine coolant temperature is below 10°C (50°F)
- Engine is running under high load and high speed conditions
| high
| Battery voltage (11 - 14 V)
|
Except the above
| mid
| Approximately 10 V
|