My climate control does not come until after 10-15 minutes after starting drive. You can push any button you like, it starts when its ready. Can't do a diagnostic unless its running.
Any clues??

possible low voltage or faulty module
start by checking all fuses - check charging - check battery and connections - check earths -

I have always though it might be voltage related. So what would be likely to keep the voltage down as the battery and alternator are good. What would drain the voltage after a start as all seems good. Does the climate control have its own module or is it combined with other modules.