
Originally Posted by
oj88
This is definitely not a speed sensor problem.
You can repair this two ways:
1. DIY - Re-seat the connection to the speedo gauge. You may also look-up the fuse location for your gauge in the manual and see if it's blown. If that does not work, get your hands on a shop manual for your car and check if power (+12V) is being supplied properly to the speedo gauge. Of course, also check the grounding. No electronic device can work without a proper ground. If there's power going into the gauge, the problem may lie inside the gauge assembly. It could be a cold solder or a loose intenal connection. You can still go further with the DIY if you're confident enough that you can put it back together. Otherwise...
2. Have it professionally looked at and repaired.