I have been experiencing a weird fault with my Aircon unit.
The original unit screen didn’t work. However, you could still control the AC with the buttons.
I have recently replaced the Aircon screen/ control unit.
Since then whenever I started the engine, the screen would go crazy (as per photos). Recently though, it’s been doing it with just the key in ignition (turned on to “electric mode”) - the only difference being that I’ve disconnected the radio.
Some other unusual things:
Battery drains quickly (I have replaced the battery with a new one and everything seems okay so far)
Aircon turns on with ignition
I would strongly recommend against buying used displays as they are all around the same age and failing. Overhaul is the best route for a long term solution. A full overhaul is relatively cheap and gives peace of mind.
With regards to the battery I have the same issue and I understand there must be a parasitic drain which could be relatively easy to diagnose. I’ve simply installed one of those gadgets on one of the battery terminals that allow you to disconnect one terminal whenever I park the car. Probably a good anti-theft device too. if you wanted to nick a GTO anyway.
