The Tow-Pro™ features sophisticated diagnostics to warn the operator of faults in the vehicle and trailer brake wiring. Wiring faults are indicated by a series of colour coded flash patterns on the Tow-Pro™ LED.
Even intermittent faults are detected and may be indicated until cleared. Most fault codes can be cleared by unplugging the trailer for 1 minute then reconnecting.
REDARC recommends seeking the support of a qualified auto electrician or technician.
Important
For your safety, REDARC recommends installation by a qualified auto electrician or technician. Our trusted REDNetwork is made up of professional auto electrical businesses certified by REDARC to install the complete of REDARC solutions. Find Your Local Installer
This information is applicable to the following products:
Tow-Pro Classic (EBRHV2)
Tow-Pro Elite V2 (EBRH-ACCV2)
Tow-Pro Elite V3 (EBRH-ACCV3)
Normal operation
The Tow-Pro™ Elite and Tow-Pro™ Classic are REDARC electric brake controllers with sophisticated warning systems. If your REDARC brake controller is flashing, it could indicate a fault, however some flashing of the LED indicator is normal. The table below shows how the Tow-Pro™ will indicate normal operation of the unit.
NOTE: LEDs will glow full at brightness when the remote head control knob is adjusted or manual override is pressed. After release of the gain control knob the LED brightness will reduce - this is designed to be less intrusive on driver’s vision at night.
Fault codes
The Tow-Pro™ features sophisticated diagnostics to warn the operator of faults in the vehicle and trailer brake wiring. Wiring faults are indicated by a series of colour coded flash patterns on the Tow-Pro™ LED.
Most faults turn out to be something simple such as a poor connection from a dirty trailer socket. However, a fault indication should not be ignored! It is a warning; if left unattended such wiring faults can become worse and may lead to deterioration or loss of trailer braking.
Please refer to the table for the list of flash patterns, showing the cause and recommended course of action for each of the conditions which may be detected.
Even intermittent faults are detected and may be indicated until cleared. Most fault codes can be cleared by unplugging the trailer for 1 minute then reconnecting.
Why is the blue light flashing on my Tow-Pro?
The Tow-Pro™ Elite will calibrate as you brake. Each time you brake the unit will monitor and record its direction of travel. The Blue flash will get longer as the unit calibrates until the unit has determined its direction of travel and the LED is solid blue whilst driving and a shade of red when the brake is applied.
Brake Controller Troubleshooting
If your REDARC brake controller is flashing in a way not listed as normal operation, check the wiring between the unit, vehicle and trailer.
- Inspect the trailer plug for dirt or corrosion
- Check all wiring connections, including the black (power), red (brake light), and blue (brake output) wires
- Reset the unit by disconnecting the trailer for 1 minute
- Contact REDARC or a qualified auto-electrician if the fault persists
Flashing LEDs on a REDARC Tow-Pro brake controller doesn’t always mean a fault. Understanding the difference between normal operation lights and fault codes helps keep your trailer braking system safe and reliable.