Fuel Pump Control Module (FPCM): Troubleshooting
| Diagnostic Items | Operation of the Controller in Case of Fault | |
|---|---|---|
| 1 | Low pressure pump disconnection | Normal operation |
| 2 | Low pressure pump over current | Motor 0.2 sec ON, 0.3 sec OFF (Repeat) |
| 3 | Pressure sensor disconnection | Fixed control for the 12 V motor |
| 4 | Pressure sensor short circuit | |
| 5 | Pressure sensor signal error | |
| 6 | Pressure sensor output voltage high | |
| 7 | Low pressure pump control circuit error | |
| 8 | Low pressure pump system error | |
| 9 | CAN Time out | Fixed control for 5 bar |