Trailer Guides

Set Up Your Elecbrakes EB2

Get your trailer connected and ready to tow in just a few minutes. Follow these simple steps before your first trip to ensure your electric brakes are working correctly.

Download on theApp Store Get it onGoogle Play

Elecbrakes

1

Turn your headlights fully on

AUTO
Don't use
ON
Use this

Your trailer brakes need power

The Elecbrakes EB2 receives power through your trailer's taillight circuit. To ensure the brake controller powers up correctly, switch your headlights to ON before connecting and towing.

Auto and DRL often don't work

Many vehicles don't supply power to the trailer's taillight circuit when the headlights are set to Auto or Daytime Running Lights (DRL). If the controller isn't receiving power, your trailer brakes may not operate correctly.

2

Connect the Elecbrakes App

Tap to Connect Hold your smartphone against the Elecbrakes EB2 logo to quickly pair your device.

EB2 — NFC + Bluetooth

Hold your phone near the logo on the black box. When the NFC prompt pops up, tap Connect.

  1. Turn your headlights ON.Connect the trailer's 7-pin plug to your vehicle.
  2. Open the Elecbrakes app.Hold your phone to the EB2 logo and tap Connect when prompted.
  3. No connection prompt?Tap Add Manually and select your EB2 from the list.
  4. Press your brake pedal.The app indicator should turn red, confirming the trailer brakes are connected and working correctly.

Only one phone at a time

The EB2 can only connect to one device at a time. If another phone is already connected, disconnect it before pairing your device.

3

Do a quick calibration drive

The controller needs to feel which way is forward

Before your first trip, the EB2 needs to learn the trailer's direction of travel. The process only takes about a minute and helps ensure smooth, accurate braking.

  1. Drive slowly.Travel in a straight line at a low speed.
  2. Brake gently2–3 times.
  3. Wait for the app to say "Calibration Complete".

Only need to do this once

Once the initial calibration is complete, the EB2 automatically continues to learn and optimise braking performance as you drive. You won't need to repeat this step unless instructed otherwise.

4

Check you've got two green lights

Open the Data tab in the app

Before you drive away, take a moment to complete this quick check. It only takes a minute and confirms your trailer brakes are receiving power.

Volts In – What You Should See
Tail light12.4V
AuxiliaryNot connected
Brake light12.4V
  1. Turn your headlights ON→ The Tail Light indicator should turn green.
  2. Press the brake pedal fully→ The Brake Light indicator should turn green.
  3. Both green and showing 10V+?You're good to go.

Two green lights = safe to tow

If either indicator doesn't turn green, check your trailer plug and connections before driving.

You're ready to go

That's all you need for a normal trip. The brakes will take care of themselves from here.

Good to know
Advanced Settings & TroubleshootingBrake tuning, sway control, alerts, and fixes

Fine-Tune Your Brakes

Your EB2 is ready to tow using the default settings. If your trailer feels too weak or too aggressive, make small adjustments to suit your load.

~10
Empty trailer
Lower minimum response for lighter braking.
~40
Loaded trailer
Higher forward response for heavier loads.
MinimumGentle stops
Minimum response
Drive at 20 km/h and brake gently. Adjust until you can just feel the trailer braking.
ForwardNormal stops
Forward response
Drive at 40–50 km/h and brake firmly. Adjust until the car and trailer stop smoothly together.
ReverseBacking up
Reverse response
Reverse slowly and brake. Adjust until reversing feels smooth and controlled.

Save it as a program

Save your setup as a program in the app. You can store up to five different brake settings.

What the app circle means

Blue = Ready Connected and ready. All good.
Red = Braking Trailer brakes are active right now.

Manual override

Tap the app indicator to apply the trailer brakes without using your vehicle's brake pedal. Tap it again to release the brakes. Use this feature only for quick testing at low speed.

Important: don't leave Manual Override switched on

It is designed for testing only. Leaving it on while driving can damage the trailer brakes.

SwayControl

Automatically stops your trailer from swinging

If your trailer starts to sway while driving, SwayControl automatically applies the trailer brakes to help bring it back under control. No action is required from the driver.

SteadyTracking true
Slight swayWatching
ActiveCorrecting now

If the gauge keeps swinging wide

Slow down safely and let the trailer settle. If the sway continues, check that your load is balanced correctly and positioned slightly forward of the axle.

Apple CarPlay & Android Auto

Control Elecbrakes from your dashboard

Connect your phone and use the Elecbrakes app directly from your vehicle's infotainment screen for easy monitoring while towing.

Apple CarPlay Connect your iPhone via USB or wireless, then open the Elecbrakes app on your vehicle's display.
Android Auto Connect your Android phone via USB (or wireless if supported), then open the Elecbrakes app from the Android Auto menu.

What the alerts mean

Low power (UVLO)

The controller isn't receiving enough power. Check your trailer plug and make sure your headlights are switched ON.

Too hot — thermal protection

The controller has become too hot. Pull over safely and allow it to cool before continuing your journey.

Brakes pulsing hard and fast?

The EB2 has lost power and entered Emergency Brake Mode. Pull over safely, make sure your headlights are ON, and check that the 7-pin trailer plug is fully connected.

Something not working?
Can't connect to the controllerThe app can't find your EB2 or won't connect.
  • Make sure your headlights are switched ON (not Auto or DRL).
  • Unplug the 7-pin trailer plug, wait 5 seconds, then reconnect it.
  • Check that any trailer plug adaptors are fitted securely.
  • Make sure only one phone is connected to the controller.
  • Still not connecting? Tap Add Manually in the app and select your EB2.
Brakes feel too weakThe trailer isn't braking as much as expected.
  • Open Settings → Program in the Elecbrakes app.
  • Increase the Gain in small steps (around 10% at a time).
  • For a loaded trailer, start with a higher Gain setting.
  • Test the brakes in a safe area at 40–50 km/h after each adjustment.
Brakes are grabbing too hardTrailer snatches when you slow down
  • Reduce the gain setting in small steps in Settings → Program.
  • Also reduce the Minimum setting slightly.
  • Re-test at 40–50 km/h.
Brakes pulsing rapidlyThe trailer brakes are activating on their own.
  • 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.