2013 mk5 hilux climate controle

[tomhowlett]

hi I've found this fault listed on here but it never got resolved. On start up the clear screen button amber light flashes and after x amount of flashes the display screen comes on but nothing works I have found the fault codes 21-41-42-43 this is a intermittent fault when I run through the test procedure it occasionally brings it back to life but not very often the test procedure wont function neither when its failed any help would be much appreciated many thanks