Running lights/tail lights/ brake lights and tun siganal's

[love_my_bronco]

anyone who helped me before ... guess what guys... i just got a ticket because my everything listed in the topic died... need some help here. when i use my turn siganal. both sides blink like emergency light. brake light decide when they wanna work. running lights in the back just dont work period. so basicly its just the ass end that has the lighting problems... what can it be? any ideas?

 

[miesk5]

anyone who helped me before ... guess what guys... i just got a ticket because my everything listed in the topic died... need some help here. when i use my turn siganal. both sides blink like emergency light. brake light decide when they wanna work. running lights in the back just dont work period. so basicly its just the ass end that has the lighting problems... what can it be? any ideas?

yo

Both brake lights inoperative:

Press the brake pedal and check for battery voltage and ground at the brake light bulb socket. If present, replace both bulbs. If battery voltage is not present, check the brake light switch adjustment and adjust as necessary. If the brake light switch is properly adjusted, and battery voltage or the ground is not present at the bulb sockets, or at the bulb electrical connector with the brake pedal pressed, refer to the wiring diagram to troubleshoot the cause of an open circuit.

Tail light, running light or side marker light inoperative

Check for battery voltage and ground at light's electrical connector. If battery voltage is present, check the bulb socket and electrical connector ground terminal for a proper ground. If battery voltage and ground are present at the light connector, but not in the socket, clean the socket and the ground terminal connector. If battery voltage and ground are present in the bulb socket, replace the bulb. If battery voltage or ground is not present, refer to the wiring diagram to troubleshoot for an open circuit.

Check the light switch operation and replace if necessary

Someone can post the elect diagrams here soon for you, I'm sure; will try to log-in again here later today.

Turn signal appears to be;

bad ground(s); Try running a separate ground wire to it (rear light, if only rear turns are flashing) my 78 had a bad grnd and I put a new one in under rear bumper area; watch out for gas tnak

check the contacts both on the bulb and in the socket

 

[miesk5]

ok, I recall my 96 had a shorted wire in right rear light assy; it was chaffing on 1/4 panel;

here are some wiring diagrams by Chilton via AZ; as Seabronc has warned in past, some are iffy;

http://www.autozone.com/az/cds/en_us/09008...irInfoPages.htm

 

[shift1313]

sorry to hear that man. do a quick test. put your hazard lights on and make sure they are flashing. then press the brake. Both hazard lights should go solid. This would indicate that you have a working brake light switch or at least it is doing something. My guess is that you have something wrong in your turn signal department. Since its rear only I would probably guess someone did a hack job of putting in a trailer wiring harness at some point. Your turn signal is supposed to override your brake light. Check everything miesk said.

another problem may arise with the ignition switch that it mounted on the steering column under the dash(have to drop the column). if it is improperly adjusted so your slightly past the On position it can cause power issues to things like signals and brake lights. Probably unlikely but possible.

 

[love_my_bronco]

oh my hazards work. turn siganals still acting as hazards when used,(doesnt matter what side both blink) brake lights not responding but i had it working the other day.. so im not sure what happened. rear running lights not lighting but this assumes bulbs are fine considering that they still light up with turn siganals and hazards.

 

[BroncoJoe19]

oh my hazards work. turn siganals still acting as hazards when used,(doesnt matter what side both blink) brake lights not responding but i had it working the other day.. so im not sure what happened. rear running lights not lighting but this assumes bulbs are fine considering that they still light up with turn siganals and hazards.

LMB

Don't you remember? You have dual filament bulbs in the rear. One filament is for the riding lights, the other filament works brakes/directionals/hazards

 

[Mike G]

Do you have trailer lights wired up? Like a connection under the rear bumper?