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Old 12-07-2018, 01:24 PM
Moriarty Moriarty is offline
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Join Date: Jun 2018
Location: Seattle, WA
Cobra Make, Engine: ERA 427sc
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Quote:
you should have 12v at the BATT terminal with the key off, which is B on my picture, but you don't
Oops, I reported that wrong. I was thinking A was the top terminal when testing. Yes, the brown wire(s) at the top of the ignition switch has 12V when the key is off (the others do not). Sorry about that.

Quote:
Try pulling fuses 6, 7, and 8 and leave them out. Then see if the car will start normally and behave normally, electrically, except for the fact that you have no lights. If it starts and runs, then try turning the light switch on and off, hit the hi-beam switch, and see if anything dies, etc. If everything seems ok, put fuse 6 in and repeat, if that's ok, put in fuse 7 and repeat, and if that's ok, put in fuse 8 and repeat. It shouldn't survive that test and I'm mostly interested in which step kills it.
Okay, this time I noticed a sound coming from the boot when turning on the lights. I think it's probably the accusump cutting out, but couldn't be sure.

Pulled fuses and problem went away as predicted. Installing #6 makes it return.
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