Signal doesn't work, Flashers do

Charging, starting, lighting, gauges, HVAC

Moderators: FORDification, Thunderfoot

Post Reply
idahiboy
New Member
New Member
Posts: 34
Joined: Sat Jan 24, 2015 12:42 pm

Signal doesn't work, Flashers do

Post by idahiboy »

I re-wired/installed new wiring kit harness. The system works flawlessly, expect for REAR PASSENGER BLINKER.
The flashers work, and taillights work when lights/headlights on are

Doublechecked all fuses and all fuses are working

Why would the flashers work, but the signal/blinker, not?

What did I do wrong?

See below chart


BIinker
Driver Front +
Driver Rear +
Passenger Front +
Passeger Rear - Does not blink

Flashers
Driver Front +
Driver Rear +
Passenger Front +
Passeger Rear + (works when flashers on)

Any advice?
Thanks!
1968 F250 FE 390
cep62
100% FORDified!
100% FORDified!
Posts: 2061
Joined: Sun Oct 26, 2008 8:06 pm
Location: West Michigan

Re: Signal doesn't work, Flashers do

Post by cep62 »

Does your right brake light work ?

I'd look in or around the turn signal switch.
idahiboy
New Member
New Member
Posts: 34
Joined: Sat Jan 24, 2015 12:42 pm

Re: Signal doesn't work, Flashers do

Post by idahiboy »

cep62 wrote:Does your right brake light work ?

I'd look in or around the turn signal switch.
The brake lights work. The right/passenger back up light does not.... Notice sure if that is related.

Unless anyone else has ideas I guess I will need to pull the turn signal harness/switch from steering wheel and test or just replace
1968 F250 FE 390
cep62
100% FORDified!
100% FORDified!
Posts: 2061
Joined: Sun Oct 26, 2008 8:06 pm
Location: West Michigan

Re: Signal doesn't work, Flashers do

Post by cep62 »

idahiboy wrote: The right/passenger back up light does not...
Just for grins , make sure you have a good ground to the light.
I like to use a long jumper wire to the battery ground to make sure.

The power from the brake switch goes up the steering column , through the t s switch , then to the brake lights.
pull the t s lever with your foot on the brake and the light should go out.
If it does , I would pull the wheel and clean the switch with electronic cleaner and see what it looks like in there.
idahiboy
New Member
New Member
Posts: 34
Joined: Sat Jan 24, 2015 12:42 pm

Re: Signal doesn't work, Flashers do

Post by idahiboy »

cep62 wrote:
idahiboy wrote: The right/passenger back up light does not...
Just for grins , make sure you have a good ground to the light.
I like to use a long jumper wire to the battery ground to make sure.

The power from the brake switch goes up the steering column , through the t s switch , then to the brake lights.
pull the t s lever with your foot on the brake and the light should go out.
If it does , I would pull the wheel and clean the switch with electronic cleaner and see what it looks like in there.
Thanks for the information..... That is good advice..... Will try it this next week, will probably just need to pull turn signal regardless and troubleshoot.

Thanks again
1968 F250 FE 390
idahiboy
New Member
New Member
Posts: 34
Joined: Sat Jan 24, 2015 12:42 pm

Re: Signal doesn't work, Flashers do

Post by idahiboy »

UPDATE
it was a bad signal switch.... Tried to clean it up and see what the issue was but 50+ yr old brittle wires just wasn't worth it, so put in new one.

All good now!

Thanks people for suggestions
1968 F250 FE 390
Post Reply