links7169

I have a 1997 f150 ext cab, 5.4, 4x4. The back left turn signal and brake light are not working, tail light works fine. Changed the bulb, nothing. Ran a new ground wire still don't work. Tested the orange/blue wire to ground with the turn signal on and I get 12v, brake pedal pushed in, 12v. Told to change the MF switch still won't work. Don't know what to look for now, any advice out there, thank you.

FireEmsF150

Maybe the connector has gone bad...corrosion or melted a little?

jackrabbit72380

I am haveing the exact same problum and its driveing me totaly bonkers!!!!
fallowed the wireing from back to front 4 times craling around under my truck replaced fuzes bulbs tested with multimeter still nothing.

runing lights and backup lights work fine but still


no left break light or turn signal on the back

bonkers i tell ya!

97 f150

links7169

Going to replace socket next I guess. About only thing left that I haven't replaced.

jackrabbit72380

try the one from the other side first and see if thats even the problum.

links7169

The female end, or pigtail, that wasn't it either. Unhooked the connector right under the tail and brake light and cleaned it with contact cleaner. It started working. On my way to work Monday morning it stopped working. Fast turn signal again. I moved the wires around on the trailer receptacle, it has to be in it. Everything meters fine is what gets me.

links7169

YES,YES, YES. I got it fixed, there was another connection between the shock and the first connection that I had missed. The tabs had broke off and it wasn't making a good contact. So check all of your connections, I thought I had. Hope this helps you guys.