Tandem Axle Chassis Controller

Part No: CM712 Category:


9 in stock

Simply, easy installation via four wires

9 in stock

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Tandem Axle Chassis Controller

Tandem Axle Chassis Controller, or under-dash mounted. Just four wires to connect. Note: Fuse protection to prevent reverse polarity. Electric trailer brake controllers fall into two categories, they are

  • Proportional
  • Non-Proportional.

Chassis-mounted controllers are non-proportional and are mounted under the dash or on the trailer. Proportional controllers, like Redarc Tow Pro, Tow Pro Elite, and Tekonsha, provide instant trailer braking forces according to the speed of the tow vehicle. Proportional controllers have emergency manual override control.

How does an under-dash or trailer-mounted controller work? The driver activates the controller from his normal seating position when the brakes are activated.

CM712 Tandem Axle Brake Controller

  • Suitable for two axle trailers up to 2000kg (2.0t)

Designed and manufactured by Jaylec™.


This device does not meet the registration requirements in all states except Queensland and the NT.

Vehicles registered in Queensland and NT can travel in all states with this device installed as long the registration is current.

Furthermore, chassis-mounted brake controllers can be used nationwide in all rural and agricultural applications.

How to Wire External Brake Controller

  • BLACK WIRE – Connect to Battery via 20 amp fuse
  • RED WIRE – Connect to brake lamp active
  • BLUE WIRE – Connect to brakes – positive
  • WHITE WIRE – Connect to brake lamp negative – negative

This product is ideal if multiple vehicles tow your trailer with electric brakes.

How to set trailer braking

The knob on the controller must be pre-set according to the trailer’s weight. Most trailers carry the same weight daily—for example, builders’ trailers, car carriers, pop tops, RVs, etc. Multi vehicles can tow trailers with trailer-mounted brake controllers in Queensland and NSW. You no longer need multiple controllers in all cars to tow the same trailer.

We recommend that a licensed repair facility install Controllers.

Finally, single-axle chassis controllers are available here.

Additional information

Weight0.5 kg
Dimensions15 × 10 × 10 cm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.


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