2006 GMC Sierra 3500 Duramax w/94000 miles with a P0606 code, what does this mean?

Question

2006 GMC Sierra 3500 Duramax Allision 6.6L w/94000 miles with a P0606 code, what does this mean?

Answer 1

Hi there,

This code indicates an issue with the ECM. Here is some info for you.

P0606 GMC - Engine Control Module Internal Performance Error
Read more: https://www.autocodes.com/p0606_gmc.html