Parasitic drain

Hi,

As far as testing the GEM, the can-bus needs scanned. CAN stands for controller area network. Basically, all computers/modules are tied together via a few wires. This type of scan will retrieve codes related to the GEM. These codes will likely start with a B and not the traditional P.

Here is a video showing how this procedure is done:

https://youtu.be/InIlnsjOVFA

Let me know if that is something you can have done. Also, as far as the module, there is a printed circuit board in it which can fail.

Take care and let me know.

Joe