My 03 Dodge Ram 1500 ABS and Brake light stays on. No codes popping up. I'm using a Launch Creader Professional 129i scanner. This is what the scanner has picked up: ACT LF ISO State Closed. The remaining wheel sensors are all reading open. This is with the engine running and truck at a stand still. Any suggestions? Thank you, Tommy.

 

I can't find anything on that..... Got a service manual?

 

I just found another website of which other Ram owners are experiencing the same exact issue. The tech rep from Just Answer who was helping this one guy suggested to get in the driver seat. Close the door. Put the key into the ignition switch and cycle the key off and on 3 times ending with the key in the on position, He said that you should be able to see any code that pops up in the area where the mileage is displayed. For me no codes popped up. However, I turned the key off. I then started up the engine, the ABS and Brake lights are no longer on. I started up the engine at 4 times and the ABS and Brake lights still have not come back on. Not sure how long this will last, I hope forever. If it comes back on, I will let you know. Thank you, Tommy.

 

That's called "The Key Dance". I don't know if that actually works on the newer trucks. But, I don't think it would display ABS codes, just Pcodes, so far as I know. But, if the lites are off, the lites are off, and THAT is the end goal.

 

i have the same thing and sometimes while driving they go off and on and make a beeping sound.
so i'm gonna try this ! See if it works.