After work intended to address a new puddle under the parked car, repeat the original conditions in a safe place and check whether the symptom returns. Note location, amount, color, and feel without touching an unknown fluid. Record the result before clearing codes or resetting adaptations.
Follow the maker’s procedure for drive cycles and readiness monitors. Check fluid levels only by the maker’s procedure; air-conditioning water can be harmless, but appearance alone is unreliable. 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.