Left rear window on my 1977 XJC quit with no notice. Switches were replaced last summer. Found the rear passenger switches were out as well, so I thought of course, need a new switch or loose lead. Nope. Swapped in a good used switch, no love. I’ve traced both power and ground leads from the right passenger switch through the offending control. Continuity isn’t a problem. Checked power leads hot; continuous through out. I’m thinking since the rear switches never get used; I discovered a second issue while trying to diagnose the first.
So before I start in on rear panel removal, have I missed anything? Is my diagnosis technique flawed?