Fun with Electricity, PO Stuff #5 in the series, or is it #6? Options

[NARP74]

Going to RRC2023 last week, I lost all my gauges just after leaving home. Pulled over to check things out and found a blown fuse. Blew a couple more before I figured out it was the left turn signal. Didn't use them for the rest of the weekend. I asked around and someone suggested I check the flasher or turn signal relay. I dropped the fuse panel and found this. Did someone swap my relays around?


More in this thread to follow. I found lots of crap...

[Spoke]

I figured out it was the left turn signal.

Keep in mind that the flasher relay doesn't know which side turnsignals are on. If the flasher relay works with the right turnsignal then the flasher and the wires to it are likely ok.

I had a guy stop by with similar issues with his left running lights on his '86 911. He put in a 25A fuse and it wouldn't blow but it would get hot. Fronts were dim and the rears were out.

Luckily with the 911, separate wires from the front running lights and rear running lights terminate at the fuse. Pulled both wires off and the fuse didn't get hot. Put the front wire on only and the running light lit up as expected and fuse didn't get hot. Put the rear wire on only and the fuse got hot and no lights in the rear. Turns out he had a short to ground on the rear light bucket.

Moral of the story is you likely have a short in and around the front or rear light buckets. Maybe try removing the wire to the left turnsignal in the rear and front turnsignal as well. See if you blow fuses. If you don't blow the fuse, then the issue is the front or rear light bucket.

With both front and rear wires disconnected, remove both front and rear bulbs and check resistance to chassis for the front and rear buckets. Both should be infinite.