I've got a 1992 sc300 and the person before me messed with some wiring in the car and now the cluster doesn't read temp, fuel level, rpm signal,speed, or illumination The cluster only shows time and my check engine light if it comes on. the car still runs and drives fine. Would anyone happen to have a diagram or know if there's a power wire I can just hook up to make this all work again. It's driving me nuts and I can't figure this out.

 

Diagrams, as always, are in my CL gallery.

Also what you describe doesn't point to bad wiring. What you speak of is all on one single plug of the three in the back. Each function is independent, not linked to one another. Only way to kill them all is to have a dead aka not properly mated plug. If not at the dash, somewhere else. You have not been specific about what wiring is messed up and how.

 

Well they cut the wires to the plugs near the shifter that feed up into the dash.

 

Yeah see that entire plug is dead.

 

You should be able to see this picture, and from here use the top navigation to go through the diagrams https://www.clublexus.com/gallery/sh...52263&size=big