We have power at one side of the door switch and through the thermal fuse, but not back to the other side of the door switch. What are the possible solutions and any tests we could do to confirm a diagnosis? Thank you!

Thank you for the reply and the download. It is a help, but we still are not sure about the problem. We checked the continuity of the two door switches and the thermal fuse. They all worked as they should. We tested voltage across the terminals for the black and tan wires on the door switch. We got voltage, and it dropped to zero when we activated the switch. When we tested the other switch, at the terminals with the white wire and the white/violet wire we got just a very small movement on the needle for voltage when the switch was activated (no real reading for voltage). We tested from both sides of the thermal fuse to a ground and got voltage. We tested for voltage from the white/violet lead to a ground and got the very small movement of the needle on the meter. Are there any other test we may perform to diagnose this problem? Thank you so much!