Thanks for description and images. Have got to the stage of replacing the switches and relay but car still dead as a dodo. Noticed when putting module together that black sliding thing did not want to move. Do I need to take everything out and look at this again to see if it slides. Also not sure as to what spring you are referring to. Time to remove steering column is not long 15 to 20 minutes once you have done it a couple of times. First time the steering wheel ended up at minus 90 degrees off centre. Have tried to clear Dtc by brake, hazards, lights but didn’t realise that it meant turning the lights on full beam at the switch so will do that first before removing the module, but it would be good to know if the black plastic sleds when not in place or whether it is locked in place.