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Hi,
For the lack of not knowing anything about these car, because I’m a 240 man, I think you may have said what the problem is!
You have a dash light that says a door is open somewhere!
This is just like having a window or door open on a whole house alarm system, it just will not let you arm the house!
If you have an alarm system on the car it may not let you move the windows either.
Isn’t that a far fetched idea about alarms on cars?
I personally would not have them on a car for the horn noise pollution associated with letting people know I left my car or I cannot get the right button acknowledged quickly!
Trick is where do they put those door sensors?
They could be in a locking mechanism itself but is doubtful to me, as I haven’t seen manufacturers do it that way. Of course that in itself, doesn’t mean a whole lot! (:-)
On older cars, it was like a door switch that operates the interior dome lights. You could actually see it sticking out like a plunger rod.
Cleaning the switch of corrosion, mostly to the metallic grounds, fixed them.
Since then, they have gone to proximity sensors. All you might see is a flat disc mounted into the outer surface of door openings around its perimeters.
It can be in the body of the car or in the moving door itself looking for a change in mass!
The moving door is not a good design because the wiring, to it, has to flex within the door hinge channel conduit.
The sensor themselves, before they got fancier used to use a magnet and a reed switch to close the circuit. Like a cover on a laptop.
Today, it uses a coil of wire and a magnetic field that does something like changes the capacitance of the circuit that its own logic circuit looks for or part of?
That is as far as I can “guess,” for you, on that subject as I am a rag tag with electronics.
As we know, eventually, that can become problematic on todays cars despite CAN BUS systems with black boxes. There has to be a communication pathway no matter if it uses signature codes.
I would hope it something far more simpler.
How to troubleshoot that is beyond any experiences I have had.
Maybe the car can spit out a code an get you closer to which door.
You should of had warnings, like with occasional disruption. If you had any of those, try to Remember what you had just done that fix it temporarily, before it got worse.
These things usually go bad slowly or intermittently over a time period due to a value or adjustment changing.
Wire strands can break individual inside the insulation until Bingo!
With those other switches not working I would go with the wiring in a hinge somewhere?
That somewhere, is most likely going to be in the drivers door, the main hub, just because it gets more use from a human!
In my experience of things, EOT, not Internet of Things, that the leading causes of equipment failures and repairs, was or is human invention!
Good luck with your side of it!
(:-)
Edit:
Just posted my thoughts and now I see KlausC! Go figure?
He probably knows where it is too!
Phil
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