we have turn signals but no back up brake or warning signals we get power to signal switch on transmission but not beyond that point should this modual be changed keep in mind that this is a 1981 Ford f150 and if this modual is changed will that help?
Tail lights. Brake lights. Backup lights. Signal lights. License plate lights.
That warning light means a light bulb is out. Check all of your brake lights (including the brake light on the rear dash!)
Blown fuse or defective brake light switch.
No, the license plate light is wired in with the rear tail lights, not the brake lights.
The good news is the brake lights still appear to work even when this warning is displayed. Does anyone know if the brake lights are at risk of not coming on when you hit the brakes?
Check the circuitry to the backup lights. The same fused circuit is probably used for both brake lights and backup lights. As you go past Reverse, the backup light probably is turned on briefly, causing the fuse to blow. It's just a thought, but I'd think it worth checking.
change the fuse if not replace flasher
broken belt
It is important to pay attention to the warning lights on the dashboard. When the ABS and brake lights flask that means there is something wrong with the brake system.
Most of the light on the dashboard are Warning Lights; different warning lights that might flash up on the dashboard. Some of the more common warning lights are shown below. 1 = Oil pressure warning light 2 = Battery charge warning light 3 = Brake system warning light 4 = Engine warning light
A third brake light is used to provide a deceleration warning to vehicles that can't see the left and right lights. You can learn more about these brake lights at the Wikipedia.
The ABS and brake warning lights will come on in a vehicle when an error is detecting in the he system. This can range from low fluid or pressure to sensor and component failure.