Electrical problems

Indicators were working this morning bar the rear right so cleaned up earth cluster under dash which was pretty nasty now even less stuff works! But the indicator green light is on on the dash ! Hazards do nothing ! Number plate lights worked yesterday and as fitting them touched connection on body both immediately went out and can't get them on again !!!!!!!
Grrrrrrrr
Help

There is a common issue (I can't remember the exact details though) surrounding the hazard light switch, I think if you have a bad connection here or something internal making a poor connection, it messes up the indicators because the current runs through the switch all the time (or something like that…)

Worth removing the switch and closely inspecting its connections. Its also possible (but fiddly) to open up the switch and clean up the electrical contacts. Be careful though, I think there's a few springs which will make a bid for freedom!

A multi meter and a Haynes Manual will be your friends.....

Knowing the year and model helps us help you.

The Hazard Switch has 2 fuses one for the Turns and one for the Hazards.

If the Hazards don't work, then the flashers usually don't either as the hazards and the turns share all things save for the fuse.

If the fuses are good then suspect the flasher relay or the hazards switch.

If the turns glow when enabled left or right then that is the higher numbered fuse.

If you shorted the bare black and blue wire in your adventure which is very easy to do then you blew a fuse.
The Bare wire on the Hazards there are two, the brown is ground, but the blue/black is 12V full time and since it is uninsulated those will snake you .  I have found that using a bit of heat shrink to cover the connector a very nice addition to the thing.

Thanks for responding I'll look into it
My car is a 1982 MK1 GTi with the early 15 fuse set up

remove hazard switch and replace with new or know good 1, any lights on dash check the earth points, and earth to rocker cover.

trail and error, you'll change 1 thing and all will suddenly work

Ive managed to get them working I took out the flasher relay gave it a little clean and hey presto it's all working! Phew
My next issue is puzzling me I have gone to refit number plate lights and whilst they were on I put the fitting back into the body and touched a connection on the body and they both went out !!! Fuse is all ok but I can't get them back on at all !!! What has happened im baffled
However I've got the back of the fusebox exposed and there seems to be a bit of corrosion lurking! I've cleaned all the earth cluster but omg where do you start with the rest ???

Found brake light problem the one connection on the brake light switch was heavily corroded and the plastic looks to have melted!!!

Think it's a part that's still available,  if not sure you can  change bottle to later version. Mark carter may have parts

Hi Kenneth
Sorry it's ok only melted the plastic cover over the spade connection! I could do with one of those not sure they are available

Yes mate connectors from Ebay. Amazon, electrical shops like tandy and Maplins (old) or just a cheap crimpset will sort.