Abs light and brake light constantly shown on dash

[MusicMan14]

No matter what my abs light and brake light right next to it are constantly on and I’m not sure what that means. Thanks in advance!

 

[Jason G Slabaugh]

Probably a bad speed sensor

 

[spakram]

definitely a bad speed sensor

 

[stickpony]

definitely a bad speed sensor

I have the same problem. Is there a thread someone outlining how to change out the speed sensor?


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[CUAviator]

Probably a bad speed sensor

Is there anything else it could be? Here’s why I ask -
- just got done installing new headlights and wired the LEDs for DRL
- battery died and had to recharge it
- attempted to install LED tail lights; they did the “stay on no matter what” and hyper flash blinker with associated “lamp out light”...took them out and put old lights back in.
- First start after tail light debacle (for op check) was when Abs and Brake light came on.
- Haven’t driven the truck in days

Thanks!

Quick edit/addition - there are NO associated codes.

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[Karlsweg]

If cruise doesn’t work also I’ll go with speed sensor.

 

[CUAviator]

Update: I took the truck for a quick drive around the block tonight to check out my new headlights...as soon as the Speedo hit 1 mph, the ABS and Brake lights extinguished!


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[Jason G Slabaugh]

I guess it could've been a lack of consistent 12v in the system, we all know that Chrysler products are finicky with anything less than 12v. Does some crazy stuff if not!

 

[Wilnel]

so...you had the truck sitting since 14 sept?