THE POWER WINDOWS, WIPERS, A/C FAN SWITCH, TEMP GAUGE AND TACH
ALL NOT WORKING. GOT ANY SUGGESTIONS. I TRIED CLEANING ALL THE
GROUND LOCATIONS. NOTHING SEEMS TO HELP.
trying to keep a 924/944 running requires much diligence- get a wiring diagram and a test light- check your fuses- but with this "cluster" of non- functioning electrical components I would guess it is a bad connector or a fusable link-
Try running a short battery cable directly from the negative battery terminal directly to the engine block. A good grounding point is the coolant return line bolt at the side of the engine in the rear. I soldered the new cable to the old one, thus leaving two ground cables. This worked for me. A new short cable was a cheap fix in my case. Good luck.
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