A failed fluid sensor misreports gas pressure, triggering a cascading safety block.
In some early models, the factory software was overly sensitive, triggering the fault under high loads even if the compressor was healthy. Faulty Pressure Switch: renault df1070
"There are two types of DF1070 faults. Either reprogram the injection computer (less than €50 at a Renault dealer), or replace the compressor power plug (€70 for the part, DIY soldering). This is assuming the compressor isn’t seized". A failed fluid sensor misreports gas pressure, triggering