2009 Tahoe - Traction/Stabilitrac/ABS/Brake Lights

[bigdjatom416]

My 2009 Tahoe has Traction/ABS/Brake lights lit. Scanner won’t communicate with the ABS Controller so I can’t read codes. This made me think the controller is bad. I have checked fuses, cleaned and reseated the ground. Not sure what to check next. Brakes are new, just did front bearings with new ABS sensors. I was thinking of putting new sensors in the rear but since the scanner doesn’t communicate with the controller I’m not sure that will fix. Help please!!

 

[mikez71]

Did this happen after changing the ABS sensors? Or there before?
And can you communicate with your ECM/TCM? Or nothing at all?