99 Pete 379 No speedo & No tach

I'm thinking you lost the ground someplace. I can't remember which # the wire is on the harness, but if you pull your dash panels out and start looking around in there, you can check the obvious grounds fairly easily. Sometimes you need the arms of a 6 year old to reach some of them though.

 

Check acessery fuse in the fuse box if its not blown check your acessery relay its behind the little dash panel on the left there will be two black boxes mounted together wit two screws and some heavy gauge wire the one on the left side is the acessary relay it will have four wires going to it two heavy gauge and a plug with two wires you can jump the relay where the two heavy gauge wires connect and all should work that relay controls the whole right side of your fuse box common for going out on a Pete if you have the rounded dash which I think 99 was still the square dash it will be right behind the steering colum they both kinda pia to get to

 

Did you jump the heavy gauge wires the relay goes out often that will tell you then when you jump it all the warning lites should come on

 

That is the relay where your jumping the wires little box with two heavy gauge wires and a plug with two small gauge wires the small gauge wires turn that realay on when the key is on so just put a jumper wire between the two heavy gauge wires if that dosent work you might want to pull the fuse block and check behind it petes have a tendency to have leaky windshields and the back of the fuse box carrodes

 

No the fuse is what turns the relay on and of with the key switch the relay controls the acessary side of the fuse box