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2015 Silverado Won't Start!

enroberts

By enroberts
in Troubleshooting & Recalls

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enroberts Enthusiast

enroberts

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As a follow up, the ECM failed and needed to be replaced/programmed. I cut the lid off the original ECM and found that all three wiring harness plugs (J1, J2, and J3) were clearly burned where they are soldered onto the circuit board (FYI, I had to break the board in half to get it out of the housing so that's why the green part of the board is peeled...notice though, the darker green areas around the solder points. You can also smell that the smoke came out). 
There was also burning at the capacitor solder points and the voltage regulator. The dealer that did the programming for me said this is the 5th or 6th computer they've replaced at their shop in 2 years AND the dealer I bought the computer from had FIVE of them in stock...what's that tell you?

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tbarn
tbarn

Not really wasting time. You have to get to the bottom of the issue. Is the doctor wasting time diagnosing? This thing ain't no 78 Cheyene. They are complicated.

enroberts
enroberts

For those interested, my ECM failed. Replaced it at the dealer today and had it reprogrammed. Back in business!   Sounds like an expensive trip to the dealer for them to waste a bunch of t

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