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Re: GM Programming Error Code E4491
Posted to Technical Discussion Forum on 11/15/2015 2 Replies

Thanks to everyone for the replies.

I did notice something odd yesterday. When you use the VIN on the GM CAL ID website or when trying to select the Module on GM SPS, the Engine Control Module is not directly listed [2003 Chevrolet Silverado 2500 HD, Photo] ... Login to read more.

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