Renault Clio III: Dipped Beam Headlights Malfunction - Relay Connection and BSM Box Diagram

Good morning!

My problem started with discharging the battery several times (but it is functional). Later, I noticed that the dipped beam headlights did not go out, and they actually glow despite turning them off with the lever. When I wanted to replace the relay, the lights went out completely and despite the efficient relay, they do not turn on anymore. Searching the forum, I found this topic: https://www.elektroda.pl/rtvforum/topic2151775.html I managed to get to the board, but I have concerns about desoldering, so I came up with the idea of connecting the relay to the outside. I found a pin with voltage in the original socket and a pin going to the lights. After connecting the relay to these pins and switching it on with a plus from the battery, the lights turned on, so ok. The problem for me is the signal that activates the relay. In the diagram of the BSM box, I see that the dipped beam signal is pin 2 in the MT plug, while for me, pins 2 and 3 of this plug are empty. Maybe you know where to look for this signal?

ragdoll85

You will not find a signal turning on the relay on the cables. The traffic light information goes to CAN.

I suspected that, but I was hoping that somehow the signal could be derived. It is difficult, you will have to try yourself with a soldering iron.

Thanks for the answer and best regards!

Today I desoldered the BSM. I was expecting a burned path, but to my eyes everything seems to be ok. If you can, Colleagues, look at the attached photo and judge if there is anything suspicious, then I will be very grateful.

I understand that no one is sure of the efficiency or defects of this plate?

Since you've found the relay, pick it up and extract the signals from its guts.

Patch it and enjoy the repaired car.

I'm linking to the topic, I have an identical situation - no low beam. I checked everything, got to the BSM module, or whatever it's called, and found that the problem with me is exactly that after switching on the lights on the relay in the BSM should be given a signal of 12 V to one control pin, and from what I measured with a multimeter, it gives me about 7.81 V there, and with such a low voltage the relay does not want to excite. I further confirmed this by checking the excitation threshold of this relay on the table using a lab power supply. Maybe someone could help which component is responsible for this voltage, as I'm betting it's some component on the board that's messed up, as I haven't found any burnt tracks or cold solders. Help!