I am about to tackle the above today so i can send the module for repair. I cleaned all four torx head screws from dirt build up and successfully loosened them. I wa able to remove the power connector but struggled a bit removing the bigger connecter. How is this connector locked to the female end? I cannot seem to find the locking tab.

I am talking about the mass connector in the picture i borrowed below.
Click image for larger version. 

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