I’m looking for technical help or recommendations on: my interior light and headlight warning buzzer.
Got a couple of little problems which I would love some help with.
Firstly my interior light has an irritating problem. The light will illuminate if the passenger door is opened but not the drivers door. Thinking the door switch was the issue, I swapped them over but still only the passenger side one works. Has anyone experience this?
Secondly, when I leave my headlights on and removed the keys and open the door, I used to have a buzzer going off to remind me the lights were on, for some reason this has also stopped.
You’ve rightly identified that there is something wrong with the drivers side wiring or connection. Having swapped the switch over and had the same symptoms we can rule out the switch as the problem. That leaves either the wire back to the lighting circuit or the quality of the negative connection. Often this is where the screw that holds the switch in the door frame and makes the connection has rusted and no longer gives a decent connection. First job would be to clean up the screw or replace it with a similar and to clean the screw hole. Once these have been cleaned we can eliminate the switch side entirely and concentrate on the wiring to the lighting circuit, for this you will need a multi meter. They are cheap as chips these days so go to your favourite online tat retailer and order one up
I’m with bettabuilda on the earth.
If there’s a self-tapper holding the switch in place, that is almost certainly the earth.
Using the surround as an earth would involve having lots of bare metal for it to earth to and that would seriously promote corrosion.
It might be as simple as replacing a nasty rusty screw with a nice shiny one.
Have you had a leak from the scuttle grommets? This can drip into the locking control module to the left of the glove box. The buzzer is driven from this box. Look for rust lines where the water has been running!
The leak can upset other things as well!
I can’t suggest anything for the light switch though except a broken wire or bad connection.
