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Discussion Starter · #1 ·
Hi,

This is my first post, so hope this is the right place to post this. I recently bought some new BMW Taillights, more specifically:

(The ones on the left obviously).

They fit nice and look good, but I ran into an issue maybe you guys can help me with? as I don't see any information on the site I bought them from.
When I put them on and connected the cable adapter to the taillights the led bar wont light up but the brakes and blinker work. I'm thinking maybe I have to switch some of the wires in the plug in a different order? My BMW comes with standard halogen headlights, which I have switched to Angel Eyes a while back.

I didnt see any post regarding these taillights so I decided to make a new post. Any help would be appreciated
I have a BMW E81 2010 Facelift
 

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Welcome :)

Are those lights designed to work on cars with xenons or halogens? The wiring between the two is different, it can be worked around with a couple of bodges, but they aren't plug-and-play.

Can the seller/manufacturer send you a wiring diagram/instructions etc.? Flying blind without it really.
 

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Discussion Starter · #4 ·
Welcome :)

Are those lights designed to work on cars with xenons or halogens? The wiring between the two is different, it can be worked around with a couple of bodges, but they aren't plug-and-play.

Can the seller/manufacturer send you a wiring diagram/instructions etc.? Flying blind without it really.
Hi Nyxeris,
Thank you for reply.

I have just sent an email to a supplier that i have gotten som information from, if they have a wiring diagram they could send me. Waiting for reply.
This is the information i have at the moment:

You need to test each function of the factory pins and connect to the correct pins locations to the taillights. ( I can not remember if the pins location can be match)
Then if there is error code, you need a specialist to code your canbus computer to turn the errors off.

I can post a picture of the taillights if you want (the wiring at the back)
 

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Cars with halogens don't have LED taillights. LED taillights have additional pin which is missing on the wiring harness of the non-LED taillight.

There are two ways to go around this:
  • Tap into license plate light and get power from there (hacky, don't like it)
  • Run wire to the FRM module and code it properly (OEM, nice, proper way to do it, but a bit more work)
 

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Discussion Starter · #6 ·
Cars with halogens don't have LED taillights. LED taillights have additional pin which is missing on the wiring harness of the non-LED taillight.

There are two ways to go around this:
  • Tap into license plate light and get power from there (hacky, don't like it)
  • Run wire to the FRM module and code it properly (OEM, nice, proper way to do it, but a bit more work)
Hi, thank you for answer.
I understand. So I don't need to rearrange the wires in the connector since I have facelift correct?
So I would need to run 2 wires from each taillight either to the FRM or use the license plate lights?
Do you need NCS Expert or something like this to code it?

By the way is there any downsides to routing to license plate lights instead?
 

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Hi, thank you for answer.
I understand. So I don't need to rearrange the wires in the connector since I have facelift correct?
So I would need to run 2 wires from each taillight either to the FRM or use the license plate lights?
Do you need NCS Expert or something like this to code it?

By the way is there any downsides to routing to license plate lights instead?
Downside of running LED strips from license plate lights is extra current draw from the connector, but many folks here were successful in doing so, without burning their car to the ground. Yes, you need to code in new taillights so when light is on auto, you'll get just the LED strip and nothing else.
 
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