The avionics wiring harness has a large bundle of ground wires, none of which were labeled by SteinAir. To make future debugging easier, I decided to chase down where these grounds go and then label them.
In the process of doing this task I discovered that several pins in the P1001 connector at the back of the tray for the GTN 650 were bent.
This is really unfortunate. This connector is one of the most complex in the whole panel and it is buried deep behind the panel where it will be EXTREMELY difficult to access for repair. Going to have to get SteinAir advice on this one :-(
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