hi, got the following situation and need a little inspiration: power tailgate motor works when directly powered (cables/battery) there is power to the switch on both (opening/closing) wires. still the window won't move when i turn the switch. seems as there is no ground. have i overseen something possibly in general operating the switch??? do all doors have to be closed? is there a second switch which has to be operated, before i turn the key in the back door? which fuse is related to the tailgate circuit? i´ve read that there is a relay in the cars up to 1970 but not in the 71/72 models. correct? if there is a relay, where would i find it, and could it be the reason for malfunction? for better information. i have no power windows and no tailgate wiper/washer. i tried to find answers via search, but after 5 pages gave up. to many makes to many causes i can exclude. i appreciate any help in guiding me to the right thread or in supportive ideas. txs
