Horn Stopped Working

[omri617 18]

Hi there , the horn doesn't work for some time now ,

Took it out and connected directly to battery : Works.

Checked with an indication lamp if it's leads get any power : None

Sprayed the earth , sprayed the 2 relays ( one is green and one is purple - which one is it? ) : None

Fuses seem all to work ( it shares the fuse of the lighter , right? )

What can i do now ? how to check if the Relays are working or not?

thanks!

[Simes 248 2 Cars]

Horn switch.

 

Test that you can hear the relay clicking, these switches are starting to fail. Second hand ones (I've found) also seem to be unreliable ( intermittent)

[pug_ham 244 3 Cars]

Is your car a 1.6 or 1.9 GTI?

 

Fuses seem all to work ( it shares the fuse of the lighter , right? )

 

I'm not sure if the fusebox layout differed for non uk cars that much but all the fuse lists I have show the horn sharing the fuse with the heated rear window through fuse #8 with post 1991 models having the cigarette lighter on the same fuse so it will depend on the year of your car.

 

You could remove the column stalk & bridge the relevant pins on the plug to check the rest of the circuit & relays out & see if the horn works.

 

g

[omri617 18]

i can hear some kind of clicking , when i press the horn

the car is 1992

on the engine bay , i see 2 relays : one is purple and the other is green , which one is for the horn?

[pug_ham 244 3 Cars]

the car is 1992

1.6 or 1.9?

 

The 1.9 has a relay for the compressor but I'm not sure which relay it'll be.

 

Look at the wires into the plug for wire #24 or 24A, if you find them, that's the horn relay.

 

The 1.6 is wired directly to the horn from the fuse box, at least none of my diagrams show it having a relay.

 

g