u/BeardieFixieFreak

Originally, self diagnosed the front SAM as faulty, but when replaced with a different unit, the same error messages carried over. Followed through by cleaning all connectors and working back to the steering column. Finally found a corroded connector in the footwell, next to the sill. Had to remove the trim pieces, then pull the carpet up. The white connector next to it had small amounts of corrosion too. Likely to be from the sun roof drain. All cleaned with contact cleaner and a stiff nylon brush and now all works as expected.

Posting here for future information!

At some point the whole can bus block will need to be replaced, but this will do for now.

We've left the front garden to grow and the goldfinches are making the most of it.

My car has developed a fault where the Run Flat, ESP, and Cruise Control/Speedtronic systems are showing as inoperative. This happened before and we discovered water leaking into the front SAM. At the time, we dried the unit and cleaned the board, which seemed to fix it. The same symptoms have now returned.

I’ve been testing a 4-pin connector (which has 3 conductors: Red, Brown, and Pink) that goes to the front SAM.

I cannot get continuity to ground on any of the wires.

The Red wire is not showing 12V.

Before I commit to the cost of a new SAM or a re-flash, can anyone with a wiring diagram confirm if I should be seeing continuity/power at this connector?