OBD-II · Engine and powertrain (P)
P0230
Fuel pump primary circuit fault
What it means
The ECU detects an electrical fault in the fuel pump relay primary/control circuit; this code alone does not confirm pump failure or low fuel pressure.
Likely causes, most likely first
| No. | Cause |
|---|---|
| 01 | fuel pump relay coil fault |
| 02 | blown relay supply fuse |
| 03 | open or shorted relay control wiring |
| 04 | corroded relay socket or poor ground |
| 05 | ECU relay driver fault |