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Rear Defrost Resistance Spec

 
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Old 08-31-2013, 10:06 PM
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Rear Defrost Resistance Spec

Can someone with a rear defrost that WORKS WELL measure the electrical resistance though it and tell me what it is? All my traces work, but not well enough to really matter. Measured resistance and got 12.7 ohms - So at 13.8V (which I also measured), that's about 12 watts heating power. Not nearly enough.

Now that I write this, I'm not sure how knowing the correct resistance is going to help me... Am I ****ed or is there some way to fix this that I don't know?
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Old 09-02-2013, 11:12 AM
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Re: Rear Defrost Resistance Spec

Coils are inductive, not resistive. Sounds like your rear window is ok but you may have a coil problem.
Check out section 23-164 of the manual for help.
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Old 09-02-2013, 02:38 PM
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Re: Rear Defrost Resistance Spec

Wouldn't there have to be AC power going through them for inductive heating to work? I've never heard of that.

Anyway, we must have different manuals, because mine shows instructions for taking apart the gauge cluster on that page.
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