Problem, LED's always off , Polo GTI 6R 2013

[iichel]

It would be nice if you could keep all the responses in the same thread. Now your questions (and answers) are in two threads. Please avoid that.

[ghfalchi]

OK. i will do that! sorry about it! I am studying these wiring diagrams, and I think that the wiring error is in this part: https://postimg.cc/5jqwDhRM

at this wiring diagram, I seeing that the 73b/62 + SB34 needs to be connected to this B141 wire (Positive Connection 1 (56A) in Interior Wiring Harness). How I do that?

Thanks!!

[iichel]

I think your factory wiring already has this in place.

[ghfalchi]

I think your factory wiring already has this in place.

I check my bcm harness. I don't have the T73a/62, T73a/2 and T73b/2 in my wiring. I think that I will need to install those wires. I downloaded the beetle wiring diagram, and my car, the low beam, high beam don't came from bcm, so I need to made the harness like a T5 tutorial that I found in this forum.. where I remove the harness of low beam fuses and passes through the BCM (t73a/b 2). I am right?

like this: (my car has the SC18 and SC19 fuses of low beam)
SC18A (remove) -> T73a/2
SC19A (remove) -> T73b/2
SC34 -> Y connection to T73a/62.

That's my idea.. makes sense?

[iichel]

Ah yes, then you probably need to do a BCM max adaptation to make it work, if your BCM was a 087/086 before.

[ghfalchi]

Ah yes, then you probably need to do a BCM max adaptation to make it work, if your BCM was a 087/086 before.

Yeah! I already did the IC can harness and the auxiliary display can. what I need to do more? all of other things are working well, like the dimmer, taillights, etc etc

[ghfalchi]

Ah yes, then you probably need to do a BCM max adaptation to make it work, if your BCM was a 087/086 before.

Yeah! I already did the IC can harness and the auxiliary display can. what I need to do more? all of other things are working well, like the dimmer, taillights, etc etc

I saw this tutorial: https://www.uk-polos.net/viewtopic.php? ... ce#p528735.
about the 30a supply of a63 b68, I made directly from a free fuse slot, getting a positive at the inside fusebox, but I used only one wire, and splitted in two, connecting to the bcm supply. so, do you know if I need to make it again, getting the 30 directly from the engine fusebox, and using thicker wires?

[iichel]

Well, your BCM is not complaining about missing terminal 30 inputs, so I think it's OK for the time being.
It's always the best to follow the OEM wiring schemes, fuse values/positions and wire thicknesses. Ciclo is the expert on the BCM max retrofits (like yours) so I'd be more comfortable with his comments.

Perhaps you can summarize what wires you already did
- CAN wires to instrument clusters
- CAN wires to additional instruments
- 30a supply to T73a/63 and T73b/68 (what fuse?)
- etc

[ghfalchi]

Yes! I will make it again, using proper 2.5mm wires! but, I did these steps:

- CAN wires to instrument clusters - DONE
- CAN wires to additional instruments - DONE
- 30a supply to T73a/63 and T73b/68 - DONE (WITH 30A Fuse - 1 wiring splitting 2 - SC55)

I think the next steps are:
- Y connection from SB34 to T73a/62;
- Remove SC18A, SC19A wires, then, send new wires to T73a/2, T73b/2

Makes sense?

Thanks a lot for you patience!!

[iichel]

Is there a terminal 30 power supply going to T73b/11? I'm suspecting that this is the power going to the LED DRL (T14/10).

[ghfalchi]

Is there a terminal 30 power supply going to T73b/11? I'm suspecting that this is the power going to the LED DRL (T14/10).

i will check.
as I noticed in my car, the DRL originally, is driven by t73a 40 and 41 in the T10/10. to light up the drl led and parking light led in the bixenon headlight, I need to install wires to T73b/5, T73b/6, T73b/3 and T73a/5 to T14 harness... need to install those wires in bcm harness because those slots are empty

[ghfalchi]

Is there a terminal 30 power supply going to T73b/11? I'm suspecting that this is the power going to the LED DRL (T14/10).

Hi!!! Good news! It worked! I did the steps that we talked!! Thanks a lot for all patience!!!

[Bakis]

Hey everyone!
I'm new here, congratulation for this beautiful community of Polo fans!
I have 2011 VW Polo GTI with halogen headlights.
The last week I bought OEM LED with Xenon headlights. (Parts number: 6R1941031C 6R1941032C).

My current BCM's part number is "6R0937087H".
I saw other "BCM modules" for buy in the internet but I don't know if it will work for my car. (7H0937089F).

When I find time I want to add a cruise control and whatever else I can but all this in the ''right way''.

Any suggestion
Thanks you for your time.

[iichel]

With speed stabiliser, do you mean cruise control?
For the headlights to work like original you indeed need a different bcm ending in 089 or 090

[Bakis]

Hello,

Sorry my mistake, Yes i mean Cruise control.
It will work for my car the BCM Code (7H0937089F or 7E0937090C).
Thanks.