I will keep this short! 54 plate V6 3.0 Cabriolet. AC not working. Recharged, fuses OK, new high pressure sensor. 8.4 Volts at the compressor. If I power the compressor from the battery directly with a fly lead, it clicks at works and the AC operates. So, where is the voltage being lost assuming it is supposed to be at 12V? Is there a relay or an AC module or something that could be causing the problem and if so where are they and how can I test them. Wiring diagram anyone? Capable DIYer with multimeter etc. !! Thanks