Set Up Your
Elecbrakes EB2
Download the app first, then follow the four steps below. That's all you need.
Your Elecbrakes gets power through the taillight cable. That cable only works when your headlights are fully switched ON — not Auto, not DRL.
These settings often don't turn on the taillight cable at all. Your brakes might not get any power.
Which controller is on your trailer? Tap to see your steps.
Hold your phone near the logo on the black box. When the NFC prompt pops up, tap Connect.
- Headlights ON. 7-pin trailer plug connected to your car.
- Open the Elecbrakes app. Hold your phone to the EB2 logo and tap Connect when prompted.
- No prompt? Tap Cancel → Add Manually and pick your EB2 from the list.
- Press your brake pedal. The app circle turns red. That means it's working. ✅
No tapping needed. Just open the app while standing near the controller and it will find it automatically.
- Headlights ON. 7-pin trailer plug connected.
- Open the Elecbrakes app. Your controller will appear in the device list — tap it to connect.
- Press your brake pedal. The app circle turns red. That means it's working. ✅
If another phone is already connected it won't let you in. Ask your passenger to disconnect theirs first.
It only takes a minute. Drive slowly down a straight road and brake a couple of times. The app will tell you when it's done.
- Drive slowly in a straight line down your street
- Brake gently 2–3 times
- Wait for the app to say "Calibration Complete"
After calibration the system keeps learning and getting better every time you drive. You won't need to do this step again.
Before you drive anywhere, do this quick check. It takes less than a minute and tells you the brakes are getting power.
- Headlights manual ON → Tail light goes green
- Press the brake pedal all the way down → Brake light goes green
- Both green and showing 10V+? You're good to go.
If either one doesn't go green, check your connections before driving anywhere.
You're ready to go!
That's all you need for a normal trip. The brakes will take care of themselves from here.
Test at 40–50 km/h in a safe area and adjust in small steps. You're looking for smooth, even stops — no jerking, no lagging.
Connected and ready. All good.
Trailer brakes are active right now
Tap the circle to apply trailer brakes without pressing your car's brakes. Use +/ – to change strength. Tap again to turn off. Only ever use this at low speed for a quick test.
It's only for quick testing at low speed in a straight line. Leaving it on while driving will damage the trailer brakes.
Sway is when your trailer starts swinging side to side at highway speed. SwayControl detects this and brakes the trailer automatically to pull it straight. You don't need to do anything — it works on its own.
Stable ✅
Detected
Active ⚠️
Slow down and pull over safely. Check how your trailer is loaded — weight may be too far back.
Connect your phone via USB or wirelessly, open Elecbrakes on the car screen, and you can monitor everything without touching your phone.
USB or wireless → open app on car screen → use touch, steering wheel, or Siri
USB or wireless → open app on car screen → use Previous / Next buttons
Getting less than 10V. Check plug connections and make sure headlights are fully ON.
The unit is overheating. Pull over safely and let it cool before driving again.
The EB2 lost main power and switched to emergency mode. Pull over — check headlights are ON and trailer plug is fully seated.
- Headlights fully ON — not Auto or DRL
- Unplug the 7-pin trailer plug, wait 5 seconds, plug it back in
- Check any adaptors between your car and trailer plug
- Make sure only one phone is connected at a time
- Go to Settings → Program in the app
- Increase gain in small steps — try +10% at a time
- For a loaded trailer, try starting at 80–100% gain
- Test at 40–50 km/h in a safe area after each change
- Reduce the gain setting in small steps in Settings → Program
- Also reduce the Minimum setting slightly
- Re-test at 40–50 km/h
- The EB2 lost main power and is in emergency mode
- Pull over — check headlights are fully ON
- Check the 7-pin plug is fully seated with no damaged pins
