Remember the car that wouldn’t stop, and the garage that possibly ripped me off?
Well, after watching the brake lights flickering randomly regardless of the car being on or off, I searched again for anyone with symptoms similar to that. One bloke with I think a Skoda had the rear wash wipe fluid hose come off in his car and spray water around the boot, resulting in similar symptoms. He also mentioned water in the trailer control module.
Now I have one of these, fitted aftermarket, but I didn’t know where it was. So after work I pulled apart the boot and found it and hey presto, it’s little casing is full of brown corroded water and a smell of burned electronics!
Disconnected it, the brake lights started working perfectly. I WIN!
Except I’m £750 worse off and the gearbox is behaving weirdly. I don’t think I needed a new ECU, but I do wonder if the different unit is making my gearbox do weird things.