Installation | 9
2.2 Wiring the brake controller
CAUTION
• A Fuse or Circuit Breaker of appropriate rating must be installed to protect the vehicle
system. Please refer to the wiring instructions starting on
for specific instructions
on where to install the Fuse or Circuit Breaker and for appropriate Fuse or Circuit Breaker
rating. The Fuse or Circuit Breaker must be installed as close as possible to the battery.
• Ensure that the wire(s) and all connections used to install the Tow‑Pro
®
Elite are suitably
rated to supply the required current to simultaneously operate the trailer electric brakes and
stop lamps. Incorrect wiring can result in reduced (or total loss of) trailer braking and/or
damage to property or persons.
NOTICE
The Tow‑Pro
®
Elite does not act as a trailer lights voltage converter. If the trailer brake lights
operate on a different voltage, damage to the vehicle; trailer and/or Tow‑Pro
®
Elite and
associated wiring may result. This may also result in reduced (or total loss of) trailer braking.
2.2.1 RED WIRE (VEHICLE BRAKE LIGHT) CONNECTION
The requirements for a suitable connection of a brake controller trigger wire are specific. This
connection point must:
• Provide a voltage of the same voltage level as the Start Battery* while the vehicle
brakes are applied.
• Have 0 volts output while the vehicle brakes are not applied.
• Accept battery voltage input when the brake controller manual over‑ride is operated and
illuminate at least the trailer brake lights.
• Accept the battery voltage input as above without causing any damage, spurious vehicle
operation or erroneous fault indication.
A relay should not be installed to drive the red wire as this would prevent the override feature from
working and may introduce dangerous voltage spikes.
For many vehicles, the brake light terminal of the trailer lighting socket provides a suitable
connection, however this is not necessarily suitable for all vehicles. Unfortunately REDARC
cannot recommend where to make this connection on a specific vehicle’s OEM wiring. For further
information contact the vehicle manufacturer.
* Start Battery voltage output means directly from the Start Battery and within 0.4 V of Supply (Black wire) voltage.