EZ LYNK... ABS, TRACTION CONTROL, CEL and Speedo issue

[Ellwood7]

HELP

Updated my tune in my 14 Ram 2500 cummins and once it completed my ABS, traction control and CEL came on. Along with my electronic and regular speedo not working at all. It’s also saying check trailer light/braking.

I tried re flashing it back to OEM and then back to the tune and nothing changed.

I also tried doing a hard reset disconnecting both batteries and waiting 20 minutes, nothing.

All fuses are good.

I’m losing my mind.

Help

 

[Bwclark2]

I know I'm a couple months late, but I just had the same thing happen yesterday. Did you ever get your lights all cleared up?

 

[chri5k]

Diagnosis all starts with reading the codes. Keep in mind many inexpensive readers can not read ABS module codes. AlphaOBD can connect to the ABS module and read the codes as will higher end code readers at auto shops and some parts stores. Report back which codes, if any, are set.