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What are the lights on my Tow-Pro Elite/Tow-Pro Classic telling me?

REDARC Tow-Pro Elite flashing sequences explained

 

Normal Operation

The Tow-Pro™ Elite and Tow-Pro™ Classic will indicate both Mode1 and Fault Condition through colour and flash sequences of the LED indicator. 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.

 

Status

Indication

Mode

Proportional1

User Controlled

Calibration

Blue/Green flashing

N/A

Sleep Mode3

Blue1 or Green2 Breathing on button push4

Trailer Connected

Solid Blue

Solid Green

Braking

Blue to Red5

Green to Red5

 

1. Tow-Pro Elite model only.

2. Tow-Pro Classic model only.

3. Sleep Mode occurs when there is no trailer connected to the vehicle.

4. Breathing, as opposed to flashing, is the LED gradually getting brighter until its brightest point and then gradually dimming until off.
5. The LED will vary between the Mode Colour (Blue or Green) and Red depending on the braking force.

 

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 on the next page 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.

 

 

LED SequenceSympton/Description Possible CauseSuggestion Action

BLUE1 or GREEN2 breathing when the Override button is pushed The trailer brakes have not been detected Check the trailer plug and all connections to the brake controller
  Flashing a BLUE/GREEN sequence1  The unit is in the process of calibrating, this is NOT a fault Keep driving normally and the unit will calibrate
  The LED is YELLOW and flashes PURPLE twice  There is a fault with the unit and/or the installation Check and clean trailer plug connection. Please contact REDARC or visit your local auto-electrician for further assistance
  The LED is YELLOW and flashes RED once  There is a short circuit somewhere on the brake output line (BLUE wire) Check all wiring from the unit to the trailer brakes for any wiring faults, including at trailer plug
  The LED is YELLOW and flashes RED twice There is a short circuit somewhere on the brake light circuit (RED wire) Check all wiring from the unit to the brake light trigger for any wiring faults
  The LED is BLUE and flashes RED once a second The unit has detected that the remote cable is faulty Check the remote cable is fully plugged in, otherwise replace
  The LED is GREEN only whilst braking Loss of supply power or circuit breaker cycling Check supply (BLACK) wire for connection problems and check circuit breaker/fuse is not blown and is the correct value
  The LED is GREEN at any time or only when not braking Hesitation during connection of BLACK wire possibly causing incomplete startup sequence  Disconnect BLACK wire, wait 1 minute and reonnect BLACK wire to the battery
  The LED is GREEN at any time or only when not braking Low continuous voltage on brake light (RED) wire Check that RED wire is connected to a point that is OV when the brakes are off and 12V with the brakes applies
The LED flashes an unusual colour sequence randomly whilst braking There is a short circuit on the output (BLUE) wire or the Fuse of Circuit Breaker is overloaded

Check for short circuit on brake light (RED) circuit

Check for short circuit on trailer brake (BLUE) circuit, including moving brake swing arms

Check that no other devices are running from the same Fuse or Circuit Breaker as the Tow-Pro Elite

LED only lights up when the braking and brake light fuse may have blown The power wire is most likely not connected Check supply (BLACK) wire for connection problems and check circuit breaker/fuse is not blown
The LED is not working with at all There is a bad connection to the trailer Check the trailer wiring as the unit is not recognising that a trailer is connected

 

1. Tow-Pro Elite model only.

2. Tow-Pro Classic model only.

 

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