Exhaust Gas Recirculation Flow Malfunction
| Code | P0400 |
| Description | Exhaust Gas Recirculation Flow Malfunction |
| Possible Causes | The EGR system is not flowing properly. |
| System | Emission Controls |
Exhaust Gas Recirculation Flow Malfunction. This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the emission controls.
P = Powertrain code
0 = Generic (SAE standard)