Disco 4 problem. Stereo climate and internal indicators not working

Hi all. Need help badly.

2011 disco 4 3.0

Issue started car not recognising the key. This was fixed but now when the car get to running temp climate stereo and indicators cut out, but only inside.
Have replaced the main ecu reset the original ecu checked wiring for chassis rub mechanics have tried everything they can think of.
Turn the car off. Starts it next day it’s fine until working temp. Weather driving the car or letting it warm in the factory.
Landrover said put heater on dash get it hot that did nothing. Can’t find any breaks in wire looms.
Possible separate ecu?
Fuse/ relay ?
Heat sensor in car behind dash ?

Tried the disco section?

Had a similar issue with my D3. After pretty much pulling the front end apart discovered the loom from the gearbox run very close to the exhust. When the car was hot it was enough for the insulation to break down and short. Only did it when it was hot. Re wrapped and re clipped in place and al good.

Had a similar issue with my D3. After pretty much pulling the front end apart discovered the loom from the gearbox run very close to the exhust. When the car was hot it was enough for the insulation to break down and short. Only did it when it was hot. Re wrapped and re clipped in place and al good.