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Brake and Brake Controller Troubleshooting

Common Problems and Solutions

Brakes Do Not Activate at All:

  1. Check the Electrical Connection:
    • Ensure the connection between the trailer and the tow vehicle is secure. Inspect the pins of the plug and socket to ensure they are clean and free from corrosion.
  2. Test the Brake Controller:
    • Use a circuit tester to verify if the controller sends a signal when activated.
  3. Inspect the Fuses:
    • Check the fuses of the vehicle and the brake controller. Replace them if necessary.

Brakes Are Too Weak or Too Strong:

  1. Adjust the Brake Controller:
    • Most controllers have a gain setting that allows modulation of braking force. Adjust this setting to achieve balanced braking.
  2. Check the Drums and Pads:
    • Worn or dirty brakes can affect performance. Clean or replace worn components.
  3. Ensure Brakes Are Properly Adjusted:
    • Follow the manufacturer’s instructions to adjust the trailer brakes.

Trailer Brakes Vibrate or Make Noise:

  1. Check the Brake Drums:
    • Warped drums can cause vibrations. Have them inspected by a professional and replace them if necessary.
  2. Inspect the Bearings:
    • Worn or poorly greased bearings can cause noise. Replace or regrease the bearings.

Brakes Engage Intermittently:

  1. Check the Wiring:
    • Damaged cables or loose connections can cause interruptions. Inspect all wiring for cuts, pinches, or loose connections.
  2. Test the Brake Controller:
    • A faulty controller can send intermittent signals. Replace the controller if necessary.

Diagnostic Steps

  1. Visual Inspection:
    • Examine all cables and connections.
    • Look for signs of corrosion, damage, or wear.
  2. Electrical Tests:
    • Use a multimeter to check cable continuity.
    • Test the voltages and signals sent by the brake controller.
  3. Road Tests:
    • Conduct a brake test in a safe location to observe brake behavior.
    • Adjust the brake controller based on the results.

Regular Maintenance

  1. Cleaning and Inspection:
    • Regularly clean the brakes and inspect them for any signs of wear or damage.
  2. Lubrication:
    • Grease the bearings and other moving parts according to the manufacturer’s recommendations.
  3. Replacement of Worn Parts:
    • Replace pads, drums, and damaged cables as needed.

If these steps do not resolve the issue, it may be necessary to consult a professional for thorough inspection and repair.