ABS + Brake light on + Spedo not working

NYSpeed Automotive
1

I have a 99 durango that i am planning on trading in within the next couple weeks.

At the dealer yesterday the BRAKE light and the ABS light came on, Then when driving the spedo will go from 10mph to 50mph or it will just stay at 0mph.

Any help would be great.

Thanks in advance.

o yea it has:
5.2L V8
4x4
and rear abs only

2

you have a bad connection on the rear axel …

3

would the rear ABS sensor have any effect on the spedo?

4

listen to bdr5oh

5

Rear axle speed sensor.

ABS needs to know exactly how fast you’re going to work. It can’t figure that out because your speed sensor is broken/disconnected. That’s why the ABS light is on and the speedometer isn’t working.

I didn’t think that would cause the brake light to come on though. That’s normally low fluid.