I've taken out the the ECU and resoldered it..

If you hit the horn buttons you hear clicking from both the horn an computer..

next thought.. is it the horn?

well that's all good an well, but WHERE IS IT?

I cant find it...

Is there a relay that could use to be replaced?

its on an 87 GXL

 

The (tiny - probably burned out) relay is on the CPU board (by the drivers left foot). The horn is buried in front of the radiator.

 

only one of the buttons works on mine. The other one works when it wants to. And with the cold weather, the seatbelt sensors started working again! Amazing!

 

thanks much