my door locks didn't work either when i got my 88.it had 2 problems.first was the driver door actuator was froze so replaced both of them with ford ones($90 apiece but worth it).still no locks,i repaced both switchs with ford ones and i could lock the doors but no unlock.finally found a broke wire in the drivers door and voila we had functional door locks after spending over $250 in parts but at least they work now.at least fixing the power mirrors was less expensive at only $20 for a new ford power mirror switch.