3 posts in Car Diagnostics blog about "visibility" — OBD-II diagnostics, DTC codes, repair. ← All posts
A trivial system until you need it on a salted motorway. The causes are cheap and the checks take minutes.
Condensation on the inside means moisture in the cabin. Some of it is you breathing; some of it is a leak that will eventually cost real money.
One broken element disables a whole stripe, and that is a DIY repair. Testing, repair, and what never to do to the glass.