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'91 944S2 Cab - Shorted ACC Power and Now Doesn't Crank

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Old 03-24-2022, 10:47 PM
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LiveFromNY
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Default '91 944S2 Cab - Shorted ACC Power and Now Doesn't Crank

So, doing a quick radio install in my 944S2. Connected the battery afterwards and radio doesn't work. Pulled the radio and looks like the switched power wire came loose during the install and shorted to ground. That's my working theory, at least.

Now I have only very faint dash lights with the key in the on position and the nothing happens when I try to start the car (no crank, very dim dash lights). I didn't have my meter handy but I put a test light to the switched power wire behind the radio and the bulb glows dimly. Constant power wire lights the bulb normally and seems fine.

I obviously fried something. Ignition switch?

Last edited by LiveFromNY; 03-25-2022 at 01:05 AM.
Old 03-25-2022, 08:17 AM
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Get a wiring diagram and your VOM out and start by following the wiring from the battery to the fusebox.

Don't forget to check for compromised grounds.



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