Yes it moves fine with all the manual switches, so I know the motors are all ok.
On the aircon fault, after consulting with Chris Shipley and Mick at Lexus Stafford (cheers again :D ), I reset ECU 'B' and faults 14 and 15 disappeared. I was told that that faults 21 and 24 were the solar sensors and nothing to worry about as these only clear in bright light conditions. This just leaves fault 23 which is as Colin says, 'abnormal refrigerant pressure'. This is one of only two faults that stops the compressor clutch operating, so I am faced with a dilemma - do I have the system recharged and hope there is no leaks, or have someone do a leak test and service on the aircon system? Does anyone have any idea of how much it costs to recharge the aircon?
Cheers, Andy