Replaced ABS module on 2001 Dodge 3500 Turbo Diesel, how do you reset ABS and Break light so that they turn off.

SOURCE: electrical? no speedometer no overdrive no third gear no wait to start light

check fuse #9 in the fuse box for being blown or lacking power...if there is no power to the fuse it is possible the ignition switch is bad

SOURCE: check engine light on

you need to use a scanner. disconnecting the bat ground will work on most codes. it's safer to use scanner

SOURCE: What is a Code 84

Hello
Welcome to FY
I would check your speed sensor located on the rear end this is on top of the housing this will throw that code too.
RD

SOURCE: Charging problem on 1996 Dodge Ram 3500 Cummins Turbo Diesel

I had the same problem on a 94 dodge with the cummins. It seems the crank sensor that reads from a notch on the harmonic balancer was the problem Without this sensor reading that the engine is running the alternator wont charge. Possibly the same problem with yours

SOURCE: Serpentine belt replacement for a 2004 Dodge 3500

check the hood or the frame rail around the engine bay. there should be a diagram.