Fuel pump control unit, location/task/design/function - GF47.20-P-4009HA
ENGINE 113.991 in MODEL 215, 220
ENGINE 113.992 in MODEL 230 up to Model Year 2008
ENGINE 113.993 in MODEL 463 up to 31.5.12
ENGINE 113.995 in MODEL 230 up to Model Year 2008
| Fuel pump control unit, location | Model 215, 220 | GF47.20-P-4009-01M | |
| Model 230 | GF47.20-P-4009-01HA | ||
| Model 463 | GF47.20-P-4009-01GA | ||
| Fuel pump control unit, task | The fuel pump control unit actuates the fuel pump (M3). | ||
| Fuel pump control unit, design | The fuel pump control unit consists of control electronics and an integral wiring harness housed in a metal housing. The wiring harness leads to the fuel pressure sensor (B4/7), to the fuel pump and to an appropriate relay module. | ||
| Fuel pump control unit, function | The fuel pump control unit processes the signal from the fuel pressure sensor and appropriately actuates the fuel pump by means of a PWM signal (pulse width modulated signal). This means that the required fuel system pressure of about 5.0 bar can be maintained for all operating conditions. |