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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > F30 DIYs and Coding Discussions > Rear Taillight Wiring
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      01-27-2023, 05:32 PM   #1
wolfief30
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Rear Taillight Wiring

Hello guys,

I have a rear taillight malfunction where my brake light and turn signals won't work on the rear right side. Using the repair kit (connector and bulb socket), I replaced the old parts. Now only the brake light is working, but not the rear right turn light.

I'm just trying to figure out which cable color is responsible for which functions.

Thank you in advanced

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      01-28-2023, 01:58 AM   #2
TheNine90
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Brown Ground
Violet/Grey Tail light, outer left. Tail light
Black /White Tail light, inner left. Turn indicator
Black/Yellow Tail light, inner left. Tail light

From the wiring diagrams they are for Rear left side
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      02-07-2023, 07:34 AM   #3
jody391
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rear light pinouts

Hello, I am after the rear light pinouts would you happened to know them and or have you got the pinouts at all?

I have searched but cant find them?

Jody.
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      02-07-2023, 09:26 AM   #4
TheNine90
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Here are the diagrams.
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      02-08-2023, 02:38 AM   #5
jody391
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Great stuff thankyou!

Could I ask, I am doing my trailer bypass relay and just wanting to sanity check my understanding of the wiring.

I can't see a fog light wire? and am I reading this bit right..

"Tail light, outer left brake light" - are these the same wire?

Cheers, Jody.

Last edited by jody391; 02-08-2023 at 02:41 AM.. Reason: correction
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      02-08-2023, 12:41 PM   #6
TheNine90
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Fog light wires are different
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      02-09-2023, 07:04 AM   #7
jody391
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Thankyou!
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