My front right turn signal doesn't come on. However, my right rear turn signal works. The parking lights all work. The bulb's good. The dash indicator doesn't come for the right but the left one does. Where should I start? Thanks.
Is the right front bulb good? Pull the bulb to clean the base of it and the contacts in the socket to make sure you get a good connection. After that start tracing the wiring backward to make sure you have continuity.
I would guess it is somewhere in that bulb and its socket. These Ford style lamp sockets ground through contact with the housing it is pressed into. Over time corrosion can break down the contact between the socket and the housing causing a loss of ground.
Try to actually test the socket. If you have a tester, hook it to a bare metal ground and check the contacts in the socket. One contact is parking lamp (or taillight in the rear) and the other is turn signal. You can also check for power at the pigtail plug for the lamp housing. The plug is found just a few inches back on the wiring from the lamp. This will help pinpoint where you have power.
99% it's the signal switch. There are four voltage paths through it, RF & LF feeds are also common to dash lamps. Does the RF flash with fourways on? Check plug from column to under dash harness. With signal on, if there is no voltage on the white/light blue wire, that's your problem.
I agree....it is probably the turn signal switch. But....start with simple things: GROUNDS. Check/clean all of those.
Did anyone ever figure out what the problem was? I know this thread is a little old, but I'm having the same problem.
