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My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
The first thing that needs done here is to check and see if any fault codes are set in any of the vehicle computers.If any codes are set this may be disabling certain voltage signals and the codes would need cleared out or diagnosed and repaired to correct this fault.The codes need checked with a fully compatible scan tool that can plug in and communicate with all computers.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.
The TCM is located under the hood on your model on the passenger side as shown here.
Since you have swapped from an auto transmission to a manual the TCM is not seeing the transmission and in turn this is causing data problems with other control units/ecu's and can cause the cluster issue as well as the no communication with ECM fault.I havent done this swap myself but my guess here is you will probably have to see if a dealer can do any kind of reprogram to make your computers think that it has a manual transmission instead of the auto so they communicate and operate again.In some cases this can involve replacing some control units/ecu's and wiring as well.
Let me know if you need anything else and feel free to rate my help here as this is how I receive credit for my time.
Did you get my last reply at all?
Unfortunately this is a difficult one for me to diagnose myself here but others here may be able to help more.
I will open your question up for others here to see if someone else can assist further on this as there may be others here that may have more info on what to check or do with this issue.I hope you can get this resolved with ease.No need to reply to my last post here unless it is a last resort as it will keep your question locked to me and others will not be able to view it.If you feel you want to continue to work with me on this feel free to reply at any time but keep in mind in some cases it can be difficult to fully diagnose or help repair this without seeing your vehicle.