My station wagon back up lights wont work. Checked back up light fuse, ok.
Removed tail gate inside panel to access back up lights. both bulbs good.
Checked both bulb sockets for 12vdc power with car ignition on & shift in
reverse. No DC voltage. I checked the wire continuity between both bulb sockets
and there good. The socket wire to chasis ground is also good. I even went
further and applied 12vdc to the interconnecting back up wire on the tailgate
and both lights works fine. I am unable to check the continuity between the
tailgate backup light wiring and the fuse panel without proper wiring diagram.
Can anyone give me some help in troubleshooting this problem. More so in
locating the different areas of the wiring so i can isolate the problem.