Here’s hoping someone can point me in the right direction with this: Always starts if left for a few hours/overnight. When fault is present, No cold start, Run Flat Indicator unavailable!, Radiator fan runs at full speed and starter will not turn, also my basic code reader will not connect. Same fault with two keys, but will decide to start randomly, sometimes second turn other times two hours later. I have wiggled wires and swapped like for like relays in the front SAM and often it will start but cannot pinpoint the fault. An old invoice from the previous owner shows this fault was rectified with a tin of contact cleaner in 2009! I have also checked the earth point on the O/S strut top. I have yet to check voltage on fuse 53 and 54. How do I get the cover / Plug off the ECU in the SAM box? Any help will be greatly appreciated.