Thread: rear defroster
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Old 02-20-2003, 06:27 AM
PaulG PaulG is offline
Registered User
Join Date: Jan 2003
Location: Epsom Downs, England
Posts: 152

You've got to start somewhere: check you have 12V at one end of the window element, and a good chassis connection at the other.

If you don't, work logically back from there to the switch, fuse and eventualy the battery.

Somewhere along the journey the 12V will reappear; then you should know where the fault lies.

Also check that the element hasn't gone high-resistance. By my guestimations, the element should measure less than 1 ohm (ie. Not a short circuit, but close).

Even if you have to splash-out on a DVM, it'll still be MUCH cheaper to prod around yourself and employ a bit of thought rather than auto electrician.
Paul Gibbons
'93 320CE
'73 Jensen Interceptor (Resting)
Giant Full Sus Mountain Bike
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