The fault presented itself after the bodybashers had re-welded a defective driver's door hinge (involved removing the OS front wing). Bodybasher claims that he uses a hitech welder that isolates the car from spikes, BUT, the fault never ocurred before this.Bitron faults are very rare.
The Bitron has a plug with about 10 wires.
Brown temperature sensor faults are usually intermittencies that cause the fans to spin flat-out.
Your faults looks more like loss of supplies.
I’m trying to find a topic from MikeT, where he had corroded wire splices just in that place.
Any thoughts?