After work intended to address water around a sunroof after rain, repeat the original conditions in a safe place and check whether the symptom returns. Record which corner or headliner area gets wet and whether the car was parked on a slope. Record the result before clearing codes or resetting adaptations.
Follow the maker’s procedure for drive cycles and readiness monitors. Check visible drain outlets without forcing wire or compressed air into them. If the issue remains, return to the evidence instead of swapping another part.
Quick educational note
For information, not a diagnosis or repair instruction. Vehicle-specific checks are still required. Consult the manufacturer's guidance and a qualified technician.
How to use this information
This article explains general principles and does not establish what is wrong with your vehicle. Read the content limitations.