05 Ford Ranger Horn Not Working

[ladycrofter]

So OH has done all the big work to get the truck through it's re-test, but can't get the horn working. Replaced horn, no joy. Fuse okay, also supplies the brake lights which are working. I have a wiring diagram which may be for the US version, but it shows a horn relay.

Where is it???? Looked all over the engine compartment, nothing seems to match the few pictures I can find online. Any help greatly appreciated. Thanks.

 

[Mursal]

Can you hear a click when you press the horn (ignition ON, engine OFF)?
Just locate the click?
What colour wires have you going to the horn?

Try a test bulb instead of the horn?
Then, give the bulb its own earth off the negative on the battery?

 

[Mursal]

Did you see this video?
Keep in mind its an 1991 Ranger might be different in your one