Turn Signal malfunction

FOMOCO

MEMBER
1997 LINCOLN TOWN CAR
4.6L
V8
2WD
AUTOMATIC
200,000 MILES

My turn signals suddenly quit working on the way to work ALL other lights are still working, including emergency flashers. All bulbs are good. There is a turning (clear) light which activates (no flash) when turn signal lever is engaged. I have replaced the Lighting Control Module with no change in status.

3 Replies

JACOBANDNICKOLAS

MECHANIC
108,407 POSTS

Hi,

If you have already replaced the module, check to make sure both fuses are good. If they are, go to the signal switch. Locate a light green wire with a white tracer and a white wire with a light blue tracer. If there is no power at those wires, check the light blue wire into the switch from the module for power. If there is power, chances are the switch has failed.

Those are the power out to the lights (signals) See attached wiring schematic. Also, make sure fuse 1 in the instrument panel fuse box is good and has power to and from it.

Here are two links you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know what you find or if you have other questions.

Take care,

Joe

See pics below. Note: I had to cut the schematic in half to make it readable for you. I did overlap the two halves and highlighted specifics.

Images (Click to make bigger)