[59FLEETSIDE]

Im at my mothers and she has a 2003 ford ranger and the brake lights and turn signals wont work, the parking lights work. Ive checked all of the fuses and there all good, im not good at electrical so does anyone have any idea of what may be causing this problem.

[Henry Highrise]

Which fuses did you check? Reason I asked that is because some of them have one fuse panel in the cab and then another one under the hood now days. I ran into that on my truck and it had me buffaloed because all the fuses inside the cab fuse panel were good.....then I spotted the big black box under the hood marked load center...upon removing the cover on this I found more fuses for the same stuff...one of them was bad.

[59FLEETSIDE]

yea it has both fuse boxes and i checked them both, no luck there

[carsavvycook]

Originally Posted by Henry Highrise

Which fuses did you check? Reason I asked that is because some of them have one fuse panel in the cab and then another one under the hood now days. I ran into that on my truck and it had me buffaloed because all the fuses inside the cab fuse panel were good.....then I spotted the big black box under the hood marked load center...upon removing the cover on this I found more fuses for the same stuff...one of them was bad.

That would be fuse 33 in the under hood fuse box, it is a 15amp fuse.

[crazy_canuck]

did you check the bulbs?

[59FLEETSIDE]

Thanks ill check 33

[59FLEETSIDE]

Well it wasnt fuse 33 or any fuse, I checked every one. Any other ideas. again the parking lights work fine all the way around but i have no brakes turn signal or flashers. thanks chirs

[carsavvycook]

Un plug the brake light switch(on the brake pedal) and install a jumper lead across the 2 connections in the plug. Look for the brake lights to be on at this time. This goes through the turn signal switch.

There is also a indicator flasher relay(behind the dash, at the bottom of the steering column), called the Auxiliary Relay Box 1.

I think it is either the relay, or the turn signal switch, if ALL of the fuses are good.

The turn signal relay gets power from fuse fuse 10 7.5amp, and fuse 21 15amp.

The brake lights, and turn signals use the same filament in the rear bulbs.

Left turn fuse is #3 7.5amp, right turn fuse is #7 7.5amp, from the turn signal switch.