Diagnostic Aids
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
- The EVAP leak detection pump is very quiet. You might feel it running rather than hear it.
- The devices have to be in their commanded state.
- Where multiple DTCs set look for a common root cause like battery feeds, grounds, splices, etc.