Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hi there, I am Cam.All 3 codes do relate to a single item, the Pcm. This is not the PMD (what you called the PCM), this is the actual module that also controls the transmission. You need to replace it. Code P0606 does not have any diagnosis, its only repair is to replace that item. So with that set, we must exhaust that one first. The Powertrain Control Module (PCM) is behind the doghouse trim inside the van.
Ok. Sounds good.