Hello, after I got good help from you, I will contact you again with my air conditioner. My climate control no longer regulates the electronic hub of the climate compressor. Had changed the whole compressor on blind only to find out with a new error that the cable in the plug to the compressor was moderated. After I repaired this, the problem was still there. Then I snapped off the cable and provided it with flat plugs around the n Hub manually with a PWM generator to be able to adjust. This also worked, however, the climate control apparently has a fuse inside, which shuts off the compressor nevertheless if no feedback comes from the lifting control. I had the whole testing here described again I then fetched a few parts from someone who has slaughtered his Renault, including newer climate control unit. I let both with the Carly Diagnose tool read out. Both lie the following error: Error Code: (000000) Error Explanation: This error results from a generic communication problem in the control unit: Air conditioning (Internal GR92) Now to my question. Does any of you know if the Renault diagnostic tool can precisely locate the error? e.g. that an error occurs with any other control unit or similar? Or does anyone have the pin assignment for the plug of the climate control? then I could wind up the wire harness and my manually laid K connect abel in order to exclude another cable break of the line. If the fault of Renault itself is not localisable and they want to replace the wire harness, control unit, etc. on good luck that will not be profitable for me, with the new coupling that is on the line. Drive in the summer very much therefore a working air conditioner for me is necessary. Thanks already for your help! LG Renault Laguna 2 Grandtour, 1.9 dCi 101PS, BJ 2005