1988 licoln towncar turn signal not working all other lights work turn signal wont light up

The signal light and window wiper switch is all one unit

replace the flasher

turn on your hazard flashers then off again some times dirt gets arround this switch and causes funny things like that to happen. good luck

My first guess would have been the turn signal switch, which you said you replaced.
You'll have to get a wiring diagram of the switch and start testing wires for power out of the switch. Could be a problem with the main harness going back to the rear of the truck, or a ground for those sockets.

it could be that you have damaged the wiring on the rear of the vehicle,you need to check for any broken or disconnected wires....cheers.

Check the turn signal stalk/ lever to make sure it is receiving power from the battery and than if it is giving power to the turn signal circuit.

Replace both lights at the back of your car. The fact that you have steady non-flashing lights at the front and no lights at the back is a troubleshooting tool to let you know the back lights are bad.

Check the turn signal dimmer switch. It is under the steering wheel. You will need to take the steering wheel off. See if any wires are loose or damaged going to the turn signal switch. Good Luck!

yes itcould, also check wires at switch connector

please check your flasher relay. it is normally a three prong relay box.


tnx 4 using fixya,

drcool