Hello all,

 

I'm desperately in need of help to refit ambient lights to my Octavia 2019 FL.

 

I couldn't figure out how to reach pin 29 on my BCM from my door trim. do I have to go to some pins via the door connector harness or sort? if so, where do I connect my positive and negative from my door to reach the BCM. I do understand I could draw power from fuse 8, but I am completely unsure how to get power to my doors. :((

 

Please help!

If you’re in the UK, we can install this properly for you 🙂 

Might be worth grabbing the factory wiring diagram. That confirm all connections and which pins on each connector etc...

@langers2k thank you for your reply, I saw you name pops up while I spend hours looking around this forum. I'm not trained to read the wiring diagram, and exactly this image is what you sent on year 2021: 

 

 

could you advice, light L251 will have 3 outputs:

1. I have to connect the LIN to T27A pin 16, which I checked that this show be the door connector?

2. i have to connect the power to T27A pin 15, which it's connected to fuse 8? does this means if i connect to pin 15 i don't have to do anything else? cause it's internally wired?

3. I have to connect the ground to T27a pin 18? so this as well is internally connected? or.... i have the track the output of T27a does to where ultimately?

 

I going crazy.. please help. 😞

 

 

@East_Yorkshire_Retrofits thank you for offering! but i'm just too far away. haha

On 16/06/2024 at 21:06, Dayn said:

could you advice, light L251 will have 3 outputs:

1. I have to connect the LIN to T27A pin 16, which I checked that this show be the door connector?

2. i have to connect the power to T27A pin 15, which it's connected to fuse 8? does this means if i connect to pin 15 i don't have to do anything else? cause it's internally wired?

3. I have to connect the ground to T27a pin 18? so this as well is internally connected? or.... i have the track the output of T27a does to where ultimately?

 

I would not expect the power wire from fuse 8 or the LIN wire from the BCM (T73c/29) to be present if your car does not have ambient lighting from factory.

 

Based on that, you will likely need to add the following:

- power wiring from fuse 8 to all four door connectors (T27a/15, T27b/15, T27c/15, T27d/15)

- LIN wiring from the BCM (T73c/29) to all four door connectors (T27a/16, T27b/16, T27c/16, T27d/16)

- power wiring inside each door from the door connector pin 15 to the LED's pin 1

- LIN wiring  inside each door from the door connector pin 16 to the LED's pin 2

- ground wiring inside each door from the LED's pin 4 to a suitable ground within the doors wiring harness

 

The ground wiring is shared by multiple components in the door so I would expect pin 18 on the door connector to already have wiring installed.

@langers2k thank you so much for clarifying this. This helps a great ton. Thanks!