Speedo-Cruise not working
 

1990 Auto. 4.3-- I have a flat four prong trailer light connector and was trying to figure out the wires on some magnetic tow lights. I had the key on and brake lights on and was checking different wires when the brake lights went out. So I checked the fuse and it was blown. No big deal, I thought, so I changed the fuse and all the lights work now.The next day I take off and notice I have no speedo, no cruise control. The engine light came on and it is a code 24. I replaced the speed sensor (VSS) on the tranny and still nothing. Any ideas. Thanks

RE: Speedo-Cruise not working
 

Did you check the rest of your fuses? I bet you blew your gauge fuse also. But I would check 'em all. I cannot believe that you took out your VSS just by testing the trailer circuits. Korey.

RE: Speedo-Cruise not working
 

could check the relays as well. my friend had his cruise control relay go out on him a short time ago.

RE: Speedo-Cruise not working
 

No relay for the speedo though, and if the speedo does not work neither will the cruise on these trucks. Korey

RE: Speedo-Cruise not working
 

I have checked all the fuses visually and with a meter. Am wondering if the cruise control cut off switch on the brake pedal may have taken a hit since the brake pedal was engaged at the time?