Monitor Strategy
P0400
| Related DTC | P0400: EGR valve flow functional |
| Required Sensors/Components (Main) | EGR valve assembly Manifold absolute pressure sensor |
| Required Sensors/Components (Related) | Crankshaft position sensor Camshaft position sensor Vehicle speed sensor Engine coolant temperature sensor Mass air flow meter sub-assembly |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 3 seconds |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
P0401, P0402
| Related DTC | P0401: EGR valve low flow rate P0402: EGR valve high flow rate |
| Required Sensors/Components (Main) | EGR valve assembly Manifold absolute pressure sensor |
| Required Sensors/Components (Related) | Crankshaft position sensor Camshaft position sensor Vehicle speed sensor Engine coolant temperature sensor Mass air flow meter sub-assembly |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 3 seconds |
| MIL operation | 1 driving cycle |
| Sequence of operation | Stored when DTC P0400 is stored in the second trip |