Why is the light on my tachometer not working?
Why is the light on my tachometer not working? LED displays that have been in use for long, may blank out due to damage. Getting the LED display replaced will fix the problem quite easily. This is the simplest task when troubleshooting a tachometer. Sometimes, corroded wire connections and breakage may be the reason for the tachometer not working. Why does the tach and speedometer don't work? Tach and speedometer don't work transmission won't shift , I had blew a fuse with the a trailer not being wired correctly. Checked all fuses in fuse boxs. Service light is on says...