I have a wiring problem. My Pwr accesory fuse blows (15A) instantaneously. I don't have power locks, mirrors, or trunk right now. I have disconected everything and found with door locks out of the loop the fuse does not blow and I have my mirrors and trunk working. Once both door lock switches are installed Pop goes the fuse. I've read the solonoids and the switches and they read good. Where is the door lock relay assembly in a 93?? I only have the GM service manual for the 92.

 

Don't know if the 1993 is the same or not, but this is the schematic for a 1995. There is no relay, per se.

 

For anyone doing a search, RPO code AU3 Door locks, there is no lock actuator. The switch goes straight to the solonoid. I found my Drivers side switch shorted straight to ground causing the fuses to blow. Check the switches with a multimeter at the power post, then check for shorts to the other 4 posts.

 

Oh, Thanks Shoebox for your help. The 92 book I had showed the relay in the loop. 4th gens don't have them.