Troubleshooting the Brake Lights Not Coming on in my Flat Towed Vehicle
Published 11/19/2021
Question:
Demco SBS Air Force One Supplemental Braking System for Motor Homes with Air Brakes - Proportional Item # SM99243 Issue brake lights are not coming on please advise
asked by: John S
Expert Reply:
It sounds like you are more likely having and issue with your tow bar wiring rather than the Demco SBS Air Force One Supplemental Braking System # SM99243. You can test this by testing your Air Force One system. Depress the break and verify that the LED indicator light is coming on and that the actuator is pulling the brake pedal in your towed vehicle. If that is happening, then the Air Force One is working properly. The Air Force One is not what provides power to illuminate your brake lights, it is simply applying your brakes. The tow bar wiring/diode kit is what is providing the power to use your towed vehicles brake lights/turn signals.
If you find you have a different issue please reach out to me with more information on your towed vehicle and tow bar wiring, I would be happy to assist you further.
Product Page this Question was Asked From
Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Air Brakes
- Indicator Lights
- Demco
more information >
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