Overview of Primus IQ Trailer Brake Controller
The Primus IQ Trailer Brake Controller is a state-of-the-art proportional braking system designed for seamless integration with electric trailer brakes, offering smooth, synchronized stops and enhanced towing safety.
Proportional braking technology in the Primus IQ Trailer Brake Controller ensures smooth, synchronized stops by automatically adjusting the trailer’s braking force based on the vehicle’s deceleration. This advanced system uses an inertial sensor to detect how quickly the vehicle is slowing down and applies the same level of braking power to the trailer. Unlike traditional time-delayed systems, proportional braking provides instantaneous, proportional response, reducing wear on both the vehicle and trailer. This technology enhances safety by minimizing the risk of trailer sway or skidding, especially during sudden stops. The Primus IQ’s proportional braking ensures a more controlled and stable towing experience, making it ideal for drivers towing varying trailer weights and sizes. This feature is a cornerstone of the Primus IQ’s design, delivering precise and reliable braking performance in all driving conditions.
1.2 Key Components of the Primus IQ System
The Primus IQ Trailer Brake Controller features several essential components designed to deliver precise braking control. The Power Wheel allows for proportional braking adjustment, while the Boost Button enhances braking power for heavier loads. The Manual Slide Knob enables manual activation of the trailer brakes, providing instant control in emergencies. An LED Display offers clear feedback on system status, voltage output, and connection status. The Wiring Harness ensures secure and reliable connections to the vehicle’s electrical system. These components work together to provide seamless integration, intuitive operation, and reliable performance. Understanding each part is crucial for optimal setup and use, ensuring safe and efficient towing experiences. The Primus IQ’s design emphasizes ease of use while maintaining advanced functionality for varying towing needs.

Key Features and Benefits
The Primus IQ offers proportional braking for smooth stops, a user-friendly interface with a digital display, manual override, and boost function for enhanced control, ensuring safe and efficient towing.
2.1 Proportional Braking for Smooth Stops
The Primus IQ Trailer Brake Controller employs proportional braking technology, which ensures smooth and synchronized stops by automatically adjusting the trailer’s braking force based on the vehicle’s deceleration. This advanced system uses an inertial sensor to detect the vehicle’s slowing down and applies the appropriate amount of brake power to the trailer. As a result, the trailer brakes proportionally to the vehicle, reducing wear on both the vehicle and trailer braking systems. This feature is particularly beneficial for maintaining control during sudden stops or when driving on uneven terrain, providing a safer and more comfortable towing experience. The proportional braking ensures that the trailer does not brake too aggressively or too lightly, which could lead to loss of control or uneven stopping. By dynamically adjusting the braking force, the Primus IQ enhances overall towing safety and stability, making it an essential component for any towing setup.
2.2 User-Friendly Interface and Digital Display
The Primus IQ Trailer Brake Controller features an intuitive interface and a clear digital display, making it easy to monitor and adjust braking settings. The LED display provides real-time feedback on brake activity, power levels, and system status, ensuring you stay informed while towing. The control panel includes a boost button, manual slide knob, and sensitivity adjustments, allowing for precise control over trailer braking. The user-friendly design enables quick access to key functions, such as manual override and boost activation, without complicating the operation. This interface is designed to minimize distractions while driving, offering a seamless and confidence-inspiring towing experience. The digital display’s clarity and the logical layout of controls make it easy to navigate, even for those new to trailer braking systems.
2.3 Manual Override and Boost Function
The Primus IQ Trailer Brake Controller includes a manual override feature, allowing drivers to apply the trailer brakes independently of the vehicle’s brakes. This is particularly useful in emergencies or when additional braking control is needed. The manual slide knob enables precise control, letting you adjust brake pressure on the fly. Additionally, the boost function enhances braking power for heavier trailers, ensuring smoother and more controlled stops. By pressing and holding the boost button, drivers can increase the braking force, which is especially beneficial when towing larger or heavier loads. These features provide added safety and control, giving drivers confidence while towing. The manual override and boost function work seamlessly together, offering a reliable and responsive braking system for various towing scenarios.
2.4 Compatibility with Various Trailer Types
The Primus IQ Trailer Brake Controller is designed to work seamlessly with a wide range of trailer types, including those equipped with electric braking systems. Its proportional braking technology ensures smooth and synchronized stops, regardless of the trailer’s weight or size. The controller is particularly effective for trailers with electric brakes, offering precise control and enhanced safety. Additionally, it is compatible with trailers requiring reverse proportionality, making it ideal for maneuvering in tight spaces. The Primus IQ’s versatility makes it a reliable choice for both small and large trailers, ensuring consistent braking performance across different towing scenarios. This broad compatibility, combined with its advanced features, makes the Primus IQ a versatile and efficient solution for various towing needs.

Installation Guide
Ensure proper installation by disconnecting the battery, verifying wiring compatibility, and mounting the controller securely. Follow the wiring diagram for correct connections and test the system thoroughly.
3.1 Pre-Installation Checklist and Preparation
Before installing the Primus IQ Brake Controller, ensure all components are included and undamaged. Disconnect the vehicle’s battery to prevent electrical shocks. Verify the wiring harness compatibility with your vehicle and trailer. Gather tools like wire cutters, strippers, and connectors. Consult the wiring diagram for specific connections and ensure the vehicle’s towing package is correctly installed. Read all safety instructions to avoid potential hazards. Proper preparation ensures a smooth and safe installation process, optimizing brake controller performance. Double-check the controller’s mounting location for clear access to the brake pedal and dashboard controls. Ensure the area is clean and free from obstructions for a secure fit. This step is crucial for ensuring the controller functions correctly and safely.
3.2 Wiring Options and Connections
The Primus IQ Brake Controller offers two wiring options: a pigtail harness or direct hard-wiring. The pigtail harness simplifies installation by plugging directly into the controller; For hard-wiring, follow the wiring diagram to connect terminals for power, ignition, brake signal, and ground. Ensure a constant 12V power supply and proper grounding to avoid electrical interference; Use high-quality connectors to prevent corrosion and secure all connections tightly. Double-check wiring before powering on to ensure reliability. Adhere to the manufacturer’s specifications for correct terminal assignments and voltage requirements. Proper wiring ensures safe and efficient operation of the brake controller, preventing malfunctions and enhancing towing safety. Consult the manual or wiring diagram for specific instructions tailored to your vehicle and trailer setup.
3.3 Mounting the Controller for Optimal Access
Mount the Primus IQ Brake Controller in an easily accessible location, ensuring it is level for proper operation. Secure it firmly using screws or the provided adhesive backing. The controller should be positioned near the driver’s seat for convenient access to the control panel. Once mounted, connect the wiring harness or hard-wire the controller according to the terminal assignments. Plug in the pigtail harness if using the included adapter. After installation, test the controller by connecting to a trailer and applying the brakes to ensure proper function. Adjust settings like boost and sensitivity based on your trailer’s weight and braking preferences. Store the user manual for future reference. If unsure about any step, consult a professional for assistance. Proper mounting ensures optimal access and reliable performance of the brake controller.

Operating the Primus IQ Brake Controller
The Primus IQ Brake Controller features an intuitive control panel with a boost button, manual slide knob, and digital display for real-time feedback and efficient braking adjustments.
4.1 Understanding the Control Panel Layout
The Primus IQ Brake Controller features an intuitive control panel designed for easy operation. The digital display provides real-time feedback on brake settings and system status, while the boost button enhances braking power for heavier loads. The manual slide knob allows precise control over trailer brake application, ideal for emergencies or fine-tuning brake pressure. An LED indicator offers visual confirmation of system status, connection, and error codes. The layout is user-friendly, with all controls accessible at a glance. Understanding each component ensures efficient and safe trailer braking. Familiarize yourself with the panel to make quick adjustments and confidently manage your towing experience. Proper use of these features guarantees smooth, reliable braking performance every time you tow.
4.2 Setting Up the Controller for Your Trailer
Setting up the Primus IQ Brake Controller involves mounting it securely, connecting the wiring harness, and configuring the settings. Mount the controller at a 10-40 degree angle for proper calibration. Use the included pigtail harness for a straightforward connection to your vehicle’s wiring system. Adjust the sensitivity by turning the manual knob to achieve the desired braking response. Test the system by applying the brakes manually and observing the trailer’s reaction. Enable the boost function for heavier trailers to enhance braking performance. Follow the manufacturer’s guidelines for precise calibration to ensure safe and efficient towing. Regularly review and adjust settings as needed for varying trailer loads and driving conditions. Proper setup ensures optimal braking control and safety on the road. Always refer to the user manual for detailed instructions tailored to your specific vehicle and trailer configuration.
4.3 Using the Manual Override Feature
The Primus IQ Brake Controller’s manual override feature allows you to apply the trailer brakes independently of the vehicle’s brakes, providing additional control in emergencies or specific towing situations. To use the manual override, locate the manual slide knob on the control panel. Slide the knob to the desired position and hold it to activate the trailer brakes. This feature is particularly useful for adjusting brake pressure on the fly or in situations where extra control is needed. For heavier trailers, the boost function can be activated by pressing and holding the boost button, increasing braking power for smoother stops. Always use these features responsibly and in accordance with the manufacturer’s guidelines to ensure safe and efficient towing. Regularly test the manual override and boost functions to confirm they are functioning correctly for optimal performance.
4.4 Engaging the Boost Function for Heavier Loads
The Primus IQ Brake Controller’s boost function is designed to provide additional braking power for heavier trailers, ensuring smoother and more controlled stops. To engage the boost function, press and hold the boost button located on the control panel. This feature increases the braking power sent to the trailer brakes, which is especially useful when towing heavier loads or in challenging driving conditions. The LED display will indicate when the boost function is active, allowing you to monitor the increased braking power. For optimal performance, adjust the boost setting based on the weight and type of your trailer. Regularly test the boost function to ensure it is functioning correctly and adjust as needed for varying load conditions. This feature enhances safety and control, making it an essential tool for confident towing.
Maintenance and Troubleshooting
Regularly inspect wiring connections, ensure proper grounding, and test voltage levels using a multimeter. Check for corrosion, loose connections, and damaged components. Verify fuses and circuit breakers are intact. Address issues promptly to maintain reliable braking performance and safety while towing.
5.1 Regular Maintenance Tips for Longevity
Regular maintenance is crucial to ensure the Primus IQ Trailer Brake Controller operates efficiently and lasts long. Start by inspecting all wiring connections for looseness, corrosion, or damage. Ensure the ground wire is securely attached to prevent electrical interference. Use a multimeter to test voltage levels at the controller and trailer plugs to confirm proper power supply. Check the brake controller’s fuses and circuit breakers to ensure they are intact. Clean the controller’s terminals and connections to avoid corrosion. Address any issues promptly to prevent malfunctions. Refer to the manual for detailed troubleshooting steps if problems arise. Regular inspections and timely repairs will help maintain optimal performance and safety while towing.
5.2 Troubleshooting Common Electrical Issues
Common electrical issues with the Primus IQ Trailer Brake Controller often stem from wiring or connectivity problems. Start by inspecting all connections for looseness, corrosion, or damage. Verify the power and ground wires are securely attached, as a faulty ground can cause malfunctions. Use a multimeter to test voltage levels at the controller and trailer plugs to ensure proper power supply. Check the brake controller’s fuses and circuit breakers to confirm they are intact. If issues persist, consult the wiring diagram in the manual for specific troubleshooting steps. Addressing electrical problems promptly ensures reliable braking performance and safety on the road. Regular testing and inspections can help prevent these issues from arising in the first place.

Safety Guidelines and Precautions
Always follow local and federal towing regulations, ensure secure electrical connections, and test the brake system before towing. Avoid overloading the trailer and exposure to water or extreme temperatures.
6.1 Essential Safety Practices for Towing
Adhere to local and federal towing regulations to ensure safety on the road. Always conduct a pre-tow inspection, checking brake connections, wiring, and trailer load security. Properly ground the Primus IQ Brake Controller to prevent electrical interference. Avoid overloading the trailer, as this can compromise braking performance and safety. Regularly inspect the braking system for wear or damage, and test the brakes before each trip. Keep the user manual accessible for quick reference. Never exceed your vehicle’s towing capacity, and be mindful of speed limits when towing. Ensure all electrical connections are secure and free from corrosion to prevent malfunctions. Stay alert while driving, especially in adverse weather conditions, and maintain a safe distance from other vehicles. Proper safety practices minimize risks and ensure a secure towing experience.
6.2 Avoiding Common Hazards and Malfunctions
To prevent hazards, ensure all electrical connections are secure and free from corrosion, as faulty connections can lead to malfunctions. Avoid reversing the breakaway battery connection, as this can damage the controller. Regularly inspect the braking system for wear or damage, and test the brakes before towing. Properly ground the controller to prevent electrical interference. Never overload the trailer, as this can cause brake failure. Use the correct wiring harness for your vehicle to avoid compatibility issues. Misuse of the manual override or boost function can lead to loss of control, so use these features responsibly. Always follow the manufacturer’s guidelines for installation and operation. By addressing these potential hazards, you can minimize risks and ensure reliable performance while towing.

User Manual Summary
The Primus IQ manual provides essential information for installing, operating, and maintaining your trailer brake system safely and effectively. It covers setup, operation, troubleshooting, and maintenance, ensuring optimal performance and safety while towing. The guide also includes where to find additional resources for further assistance.
7.1 Key Points from the Official Manual
The official manual emphasizes proper installation, operation, and maintenance of the Primus IQ Brake Controller for safe and effective towing. It highlights the importance of secure electrical connections, avoiding overloading, and regular system inspections. The manual also outlines key features like proportional braking, manual override, and boost functions, explaining how they enhance control and safety. Detailed instructions are provided for setting up the controller, including sensitivity adjustments and boost activation. Additionally, it covers troubleshooting common issues such as electrical connectivity problems and error codes. The manual stresses adherence to safety guidelines, including proper grounding and avoiding extreme temperatures. By following the manual’s instructions, users can ensure optimal performance and reliability of the Primus IQ Brake Controller for a secure towing experience.
7.2 Where to Find Additional Resources
For additional resources on the Primus IQ Trailer Brake Controller, users can refer to the official Tekonsha website, which provides downloadable PDF manuals, troubleshooting guides, and installation instructions. The manual is also available through authorized dealers and online platforms like pricepredict.com and tekonsha.com. Furthermore, customer support can be contacted at 1-888-785-5832 for technical assistance and warranty inquiries. Additional resources include instructional DVDs, wiring diagrams, and FAQs section on the official website. These resources ensure comprehensive understanding and optimal use of the Primus IQ Brake Controller, addressing installation, operation, and maintenance needs effectively.

Technical Specifications
The Primus IQ Trailer Brake Controller features proportional braking technology, compatibility with electric trailer brakes, manual override, and boost function for enhanced control, ensuring precise towing performance.
8.1 Detailed Specs for Compatibility and Performance
The Primus IQ Trailer Brake Controller is designed for compatibility with electric trailer brakes, offering proportional braking for smooth stops. It features a compact design, user-friendly interface, and digital display for real-time feedback. The controller supports manual override and boost functions for enhanced control, especially with heavier loads. It operates on a 12V power supply, ensuring reliable performance across various towing conditions. The system is compatible with trailers equipped with electric brakes and works proportionally in reverse for easier maneuvering. With a focus on safety, it meets NHTSA regulations for tow vehicle and trailer light activation. The controller’s wiring harness ensures secure connections, and its inertial sensor provides precise braking based on deceleration. These specs ensure optimal performance, safety, and ease of use for towing enthusiasts and professionals alike.
The Primus IQ Trailer Brake Controller offers exceptional performance, ease of use, and safety features, making it an ideal choice for both towing enthusiasts and professionals.
9.1 Final Thoughts on the Primus IQ Controller
The Primus IQ Trailer Brake Controller stands out as a reliable and advanced solution for towing needs. Its proportional braking technology ensures smooth, synchronized stops, enhancing safety and control. The user-friendly interface, manual override, and boost function provide versatility for various towing scenarios. Compatible with multiple trailer types, it offers unparalleled performance and ease of use. By adhering to NHTSA regulations, it guarantees compliance and safety on the road. Whether for enthusiasts or professionals, the Primus IQ is a top choice for efficient and secure towing experiences. Its durability and intuitive design make it a long-term investment for anyone seeking a high-quality brake controller.