Today, I looked at a 2020 Silverado with a MIL on at PDI. It had a 6.6 gas engine and auto transmission. Here is the code set screen.

[Code Set]

As you can see, P05AE was set current. The Silverado has 2 active air shutters, 1 and 2. 1 is on the top and 2 ... Login to read more.

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