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I am pleased to report that the replacement of relay AC has solved the problem on my car AC-now works normally system.
The problem beeing the AC system on my Peugeot 406 2000 stopped working and checking for leaks, and fill fluid cooling results Diden t any improvement.
If someone has the same problem, you must make sure your AC-system does not leak, and it has enough coolant, before resorting to this with a voltmeter to check the AC-output BSI is also a good idea can be found on wiring diagrams in an appropriate repair book.
If the terminal on the BSI doesen t give a signal, you also need to check that the dashboard on button indicates the BSI to activate the AC-system if it is, and the output terminal of the BSI does not give a signal you might have a defect AC relay.
As you can see, the BSI has two different cards that can not be separated without breaking the one on the right is the logic board, where all the fancy control functions are made, and the other consists of relay , connectors and other.
This council is composed of the power electronics that protects the logic board, and adapts its signals to activate different parts of the electronic system of the car.
The board is quite spacious, which is good when you want to replace something above described image where the relay is located.
Note that you can not get to the top of BSI without cutting the plastic bowl with a Dremel tool or simular Again spacious card is a good thing.
The part that you have to cut is marked in the image above Note that the images of the BSI not work try, but my real was identical.
Under the package, you will find two relays, one white and one black is the last you want to replace.
The most difficult part of this operation is in fact the old relay four of the five terminals of the first image in the article, are fairly easy to do with soldering- wick and paste the last terminal If I remember correctly, the top right one on the picture is filled all the way trough, which is a bit difficult, you can try a desoldering tool if I like the bit better, or heat the pin and gently jiggle over to loosen.
If all attempts fail, you can break the pin of the old relay and use a very thin drill fly to open the terminal The board is quite spacious, so if you don t destroy the terminal, you should be fine.
Sorry to say I dident take photos of the process, so I can not show more detail, but this information you should start working in the future, I could do a static page.
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The French auto repair AC Ole Martin Bråtene, French, repair.