adrian hogg

Well-Known Member
Hi does anyone know where the earth (Black and red wire as per attached) for the indicator warning lights in a series 3 was connected originally
 

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Pretty sure they connect to the gauge securing screws.
 

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    gauge securing screw.JPG
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Pretty sure they connect to the gauge securing screws.
Yeah, I'd go along with that. I recall several other lamps (instrument illumination, main beam, charge lamp, etc) also earth to the same place, and I also ran a good earth from there to the bulkhead to make sure it really was a good earth.
 
By the way, am I the only person slightly worried about having an unfused, unprotected 12V supply on the dash, very close to an earth point (the 'test' terminals)?

I have left the earth connection there connected, but decided not to wire up the +ve supply, but have a fused supply to a (covered) cigarette lighter socket, instead. I hate the idea of unfused circuits on a car.
 
By the way, am I the only person slightly worried about having an unfused, unprotected 12V supply on the dash, very close to an earth point (the 'test' terminals)?
No, you're not.

I have left the earth connection there connected, but decided not to wire up the +ve supply, but have a fused supply to a (covered) cigarette lighter socket, instead. I hate the idea of unfused circuits on a car.
I'm putting an inline fuse holder in the +VE wire.
 
I'm putting an inline fuse holder in the +VE wire.
That's perhaps a more sensible option to allow the terminals to still be used. But I don't have anything to plug in there, anyway. A cigarette socket is a lot more useful...and even more useful when a USB adapter is plugged into it.
 
Thanks for input. I agree with you megaman and will be changing the wiring to the inspection lamp socket.. I am tempted to cut the dash and put a hard wired usb socket in there but may "hide it" as my old 109 is pretty standard and unmodified
 

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