Got a 2002 P406hdi with mot airbag failure. Hooked up my usually trusty Maxidas and no comms with airbag module. Tried other Peugeots and Citroens with no success. Uninstalled file and re downloaded,still the same. Could access other modules,engine and abs etc. Realised I still had my old FR704 and that connected and found 4 codes. I tried the maxidas on a similar year 306hdi and that did connect to airbag. I have also tried to connect to a 1996 punto 75 via the 3 pin connector with maxidas and no success. I realise this is a big ask on an old car with new equipment! Any comments?