Right then...
Hello Vicky, welcome, let's try and sort out your problems...
Firstly, get yourself a Workshop manual which has the wiring diagrams
Of course, if you or whoever is in this with you (you mentioned 'we'), aren't great with such diagrams, that might be a problem.
You can download a pdf of the workshop manual by searching for 'AKD530 Workshop Manual download' and there's several sites carry it.
Where were you spraying WD40?
It's a Moisture dispersant, that's where the WD comes from (W for Water), it's not great if used in the wrong places, it's also non conductive so can insulate electrical things....
The Horn and Interior Lights come from the Permanent Live Fuse, the one with Brown feeding it. The 2 Purple wires leading from it go the Horn and Int Lights.
Washer spray was never Electric when it left the factory, so that could be connected anywhere the installer decided, and believe me, some people connect them in ridiculous places. You'll have to try and follow that back physically.
Vickysmith wrote: ↑Wed Nov 29, 2023 4:43 pm
My headlights are working but my break lights stayed on even when I turned off the headlights. After spraying some WD40 the break lights now do not come on at all but headlights are fine?
Brake Lights have nothing to do with headlights;
do you mean the Brake Lights or just the Side Lights, sometimes called Marker Lights?
Again, where were you spraying WD40?
Brake Lights are fed directly from the Brake Light Switch, which is operated by hydraulic pressure when you press the brake pedal. The switch is in the Brake line, near the bottom of the Radiator.
What age is the car?
That affects how the Side lights are wired up.
Fuel gauge, that's a Green wire from the Fuse fed by the White Wire(s). It's a common feed shared with the Wipers,
do they work?
Look forward to your reply....