Welcome I'm Chris aka Moose
The previous tech has opted out and will no longer post on this question.
The first 2 codes for the EPC solenoid 1747 and 1760 lets go after those first. Normally when you have these codes there is a wire short, fuses blown, and lot of other transmission and engine codes. Since you have replaced the solenoid pack and harness and the codes indicate a circuit issue that only leaves the PCM. So to prevent replacing more parts like you have already tried, lets diagnose. Can you do the steps in the link below?
The other codes are air bag system codes which will not effect the engine or transmission so we can diagnose those later, they are much harder to address.
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I am in my upper 30's, have a wife and 2 sons. I farm, fish, hunt, build, and coach youth soccer. I work on anything with an engine, been to many schools and classes through my 12 years with the dealership to get trained and certified. I try the best I can to share what I know and or have access to with my customers. Please consider I base my questions and answers to you, solely on the information you give me since I am not there to see, smell, hear, touch, or test. I try my best to be here everyday starting at 3pm central. Rating an answer is required. Please let me know if your not pleased prior to rating or if you cannot rate me so I can try to help a different way. God Bless and have a great day.