Hi all, I purchased a quad x2 tow module and commander a week ago. Could not get it to work despite all of quad tech help. I pulled out the whole thing to send back to them now my overhead stopped working and I have codes 0237 and 0069. Anyone have any ideas? Thanks

 

If you attempted to connect the module with the batteries connected, you likely corrupted the PCM. Try the battery disconnect and system cap drain reset and see if the troubles go away.

 

How do you do a system cap drain reset?