this post was submitted on 13 Aug 2026
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Mechanic Advice

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Hi,

I have a right blinker problem on my car, specifically the right side repeater and rear right indicators.

They used to work on and off sporadically but now they don't work anymore.

When they break, they both break at the same time.

Disclaimer, I am a beginner who watches youtube videos and search stuff online. So far I have changed a radio and a diesel return line on another car.

Pictures (sorry for the resolution)

Here's a schematic I found online for my car model:

Here's another:

Both found here: https://www.c3manuel.com/indicateurs_de_direction_signal_danger-106.html

And here's a simplified one made by myself:

Findings

  • Lamp module 2635 (rear right): OK

  • Connector and pins 2635: OK

  • Lamp module 2345 (right side repeater): OK

  • Wiring [BSI - PH1 - #13] -> [2635]: OK (I even replaced it, ruining a perfectly good original part >.<)

  • Wiring [BSI - EP - #19] -> [2345]: Untested, very hard to reach

  • Ground MC70: OK (because the other lights (stop and fog) are working fine)

  • Ground MC20: OK (because the front right blinker goes there and this one's working)

  • Front right blinker: OK

  • Left blinkers: OK

  • Blinker fluid: OK ^^

  • The BSI isn't sending a pulsing 12V to PH1#13 and EP#19.

  • The ticking is faster on the right side.

What can I check/do next? I am kinda lost.

As I said before, I am a beginner so every piece of advice is welcome.

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