Monitor Strategy
WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
| Related DTC | P0401: EGR valve high flow rate/low flow rate |
| Required Sensors/Components (Main) | EGR valve assembly Manifold absolute pressure sensor |
| Required Sensors/Components (Related) | Engine coolant temperature sensor |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 3 seconds |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |