Was sitting at the stop light and my abs light and the brakes light just turned on? Anyone know what could have caused this? Is it possible that it's due to low brake fluid. It's a 2004 Ram 1500.

 

Possible. Another possibility that has been discussed quite a bit on here is the speed sensor. Either it's got a loose connection, there's water collected on it or it's going bad. Do a search on here and use the key words "speed sensor". Plenty of reading on the subject.

 

Heres a thread I submitted earlier I changed the sensor like 20 bucks and it fixed it..
drop your spare tire so you can sit under there and its on top the pumpkin Very easy change..

https://dodgeforum.com/forum/3rd-gen...ht-issues.html