Replace the rear speed sensor located on the top of the rear axle. A couple of screws and a simple plug type connector is all! The part costs approx. $30.00 and 30 minutes to change. It is a dirty job! Good Luck!
Possible abs sensor failure.
If the speedometer and brake lights aren't working then you should change the fuse. If that doesn't work then check the electrical system associated with your Heritage.
Is your speedometer not working? If your abs light or tracs light is on it may be the brake control module causing your speedo not to work.
If all three are not working then it is a pretty good bet the speed cable is either broken or has come off. The cable runs from the rear of the front left wheel to the back of the speedometer, it looks like a brake cable from a bike. speed sensor could be bad.
Start with the vehicle speed sensor the feeds the speedometer and odometer.Also look at the Brake/Speedometer problem associated with the Windstar recall for a leaking brake pressure switch
you either have a blown bulb or you have a broken wire
The emergency brake is on?
There could be many causes to a brake light not working. It is best to replace the fuse, and the bulb and check the wiring.
alternater problem i found on my car
The BOO (Brake On/Off) Switch may need to be replaced. If it is bad, it would cause the brake lights to NOT illuminate when the brake pedal is applied.
ABS and brake lights on dash will be on. Speedometer and cruise will be inoperative.ABS and brake lights on dash will be on. Speedometer and cruise will be inoperative.
vss sensor