Yesterday, I noticed on my 1995 4Runner that the Speedometer, Odometer, and other front guages are not operating. I called my mechanic and they told me they would have to run a $70 diagnostic test, and then hopefully diagnose the problem. They told me it most likely has to do with the wiring. Has anyone else experienced this problem? I found it especially odd that the overall mileage guage is not operating. Any help or ideas would be great. Thanks!