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2005 - 2007 Mercury Mariner
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Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2005 - 2007 | Mercury Mariner | — |
The BRAKE mate is a trailer brake control system that allows you to control trailer brakes from your vehicle. It connects to your vehicle's electrical system and includes a brake control unit that mounts under the dash, circuit breakers for power management, and a prewired connector that attaches to your trailer.
The manual does not specify which vehicle makes, models, or years are compatible with the BRAKE mate. Contact Cequent Towing Products technical service at (888) 521-0510 or consult a fitment database to confirm compatibility with your specific vehicle.
Yes. Step 4 of the installation instructions requires connecting the 4-pole flat connector to the vehicle's connector, which means your vehicle must already have a 4-pole flat connector. If your vehicle does not have one, the BRAKE mate cannot be installed using these instructions.
The kit includes: 1 prewired connector, 1 heavy duty flasher, 1 20 amp circuit breaker, 1 40 amp circuit breaker, 5 #10 G-ring connectors, 2 3/8" G-ring connectors, 5 Scotch locks, 8 self-tapping screws, and 6 wire tie straps.
The manual does not specify required tools. However, based on the installation steps, you will likely need a drill (to create a firewall hole if one does not exist), wire strippers, a screwdriver (for self-tapping screws), and possibly a crimper or pliers for ring connectors. Contact technical service at (888) 521-0510 for a complete tool list.
The manual does not specify whether the battery must be disconnected before installation. Contact Cequent Towing Products technical service at (888) 521-0510 for safety guidance before beginning work.
Mount the bracket for the round connector on the bumper if that is where you intend to install it. Some hitches have built-in brackets, so check your hitch first before mounting a separate bracket.
Mount the brake control unit under the dash onto something firm. The unit must be securely fastened to a solid surface.
Mount the 2 circuit breakers (20 amp and 40 amp) end to end on the firewall within reach of the BLUE/BLACK cable. Secure them with the self-tapping screws supplied in the kit.
You may need to drill a hole through the firewall to run the BLUE/BLACK 2-strand wire from the engine bay into the cab. Look for an existing spot first; if none is available, drill a hole and seal it with a rubber grommet or silicone to prevent water and debris from entering the cab.
Some hitch brackets may need to be cut to allow the various connectors to pass through. Check your specific hitch bracket during installation; if it blocks connector passage, you will need to cut it.
Yes. In step 9, you must cut the black wire to create two open ends. These ends are then fitted with ring connectors and attached to the 40 amp and 20 amp circuit breakers respectively.
WHITE = ground wire; BLUE/BLACK = 2-strand power and trailer brake wire (runs from rear connector to front of vehicle and through firewall); RED = power wire from brake control unit; BLUE = trailer brake wire from brake control unit; GREEN = wire from brake control unit to brake switch.
Connect the WHITE ground wire to the frame of the vehicle. This provides the ground connection for the system.
Run the BLUE/BLACK 2-strand wire along the frame rail to the front of the vehicle, avoiding the exhaust, axles, and brake cables. Secure it with the plastic tie straps supplied. Then run it up the firewall, avoiding the steering mechanism, and secure it with ties.
Split the BLUE/BLACK 2-strand wire down the middle. Connect the RED (power) wire of the brake control unit to the BLACK wire using a Scotch lock. Connect the BLUE (trailer brake) wire of the brake control unit to the BLUE wire using a Scotch lock. Connect the WHITE wire of the brake control unit to the ground on the vehicle body. Connect the GREEN wire of the brake control unit to the inactive side of the brake switch.
Run a heavy gauge wire from the battery or equivalent power source to the battery side of either circuit breaker. Attach a #10 G-ring connector to one end of the wire. Then split a wire off this main wire to the 20 amp breaker using a Scotch lock and attach a #10 G-ring connector to the end of this wire. Alternatively, you can run a jumper between the two breakers.
The circuit breakers protect the electrical system. The 40 amp breaker is connected to the auxiliary side of the wire going to the rear connector. The 20 amp breaker is connected to the auxiliary side of the wire going through the firewall to the brake control unit.
The heavy duty flasher is a replacement turn signal flasher. If your turn signals blink too fast after installation, replace your vehicle's original turn signal flasher with the one supplied in the kit.
After attaching the round connector with self-tapping screws, test the connector for: running lights, brake lights, turn signals, and hot wire (power). Note that the brake control output cannot be tested unless a trailer is connected to the connector.
If the turn signals are blinking too fast after installation, replace the turn signal flasher with the heavy duty flasher supplied in the BRAKE mate kit.
After drilling a hole through the firewall to run the BLUE/BLACK wire into the cab, seal the hole with a rubber grommet or silicone to prevent water and debris from entering the vehicle.
When running the BLUE/BLACK 2-strand wire along the frame rail and up the firewall, avoid the exhaust, axles, brake cables, and steering mechanism. These components can damage the wire or be damaged by it. Secure the wire with the supplied plastic tie straps.
Your vehicle must have a 4-pole flat connector. Contact Cequent Towing Products at (888) 521-0510 or check a fitment database to confirm compatibility with your specific make, model, and year.
The kit includes a prewired connector, brake control unit, 20 amp and 40 amp circuit breakers, 5 #10 G-ring connectors, 2 3/8" G-ring connectors, 5 Scotch locks, 8 self-tapping screws, 6 wire tie straps, and a heavy duty flasher.
You may need to drill a hole through the firewall to run the brake wire into the cab if an existing hole is not available. The hole must be sealed with a rubber grommet or silicone.
Connect WHITE (ground) to frame, RED (power) to BLACK wire, BLUE (trailer brake) to BLUE wire, GREEN to brake switch, and run BLUE/BLACK from rear connector through firewall to brake control unit.
Test for running lights, brake lights, turn signals, and hot wire (power). Brake control output cannot be tested without a trailer connected. If turn signals blink too fast, replace the flasher with the one supplied.
Avoid routing the BLUE/BLACK wire near the exhaust, axles, brake cables, or steering mechanism. Secure all wires with the supplied plastic tie straps.
Yes. The T-Connector is designed for Ford Edge and Lincoln MKX. Installation procedures for these models differ from other supported vehicles and require removal of bolts holding the taillights, access to the rear cargo area, and routing of wiring through the side trim panels.
Yes. The T-Connector fits these vehicles. Installation for these models differs from Ford Edge/Lincoln MKX and uses screws (not bolts) to remove taillights. The wiring is routed through the opening between the bumper and body rather than through side trim panels.
For Ford Edge and Lincoln MKX: Trim Panel Remover, 10mm Socket & Ratchet or 10mm Wrench, 20mm Socket & Ratchet or 20mm Wrench, Drill with 3/32" Drill Bit, 1/4" socket, Wire Crimpers, Wire Cutters, Philips Head Screwdriver, and Test-probe.
For these vehicles: Drill with 3/32" Drill Bit, 1/4" socket, Wire Crimpers, Wire Cutters, Philips Head Screwdriver, and Test-probe. These vehicles require fewer tools than Ford Edge/Lincoln MKX because trim panel removal and socket wrenches are not needed.
Yes. The vehicle's Negative (-) battery cable must be disconnected before connecting the fuse holder to the Positive (+) battery cable. The battery is disconnected in step 11 (Ford Edge/Lincoln MKX) or step 5 (other vehicles) and reconnected after the fuse holder is installed.
Yes. For Ford Edge and Lincoln MKX, remove two bolts and carefully pry the taillight housings rearward. For Mercury Mariner, Ford Escape, Mazda Tribute, and Ford Econoline, remove the screws holding the taillights and carefully pry the housings rearward. Be careful not to break the alignment tabs.
Yes. A 3/32" hole must be drilled to secure the white ground wire using the supplied eyelet and screw. The manual cautions to verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury, and prohibits drilling into the vehicle floor, bed, or any exposed surfaces.
Yes, for Ford Edge and Lincoln MKX only. In step 14, slit the grommet on both the driver's and passenger's side to allow the T-Connector's wiring to pass through, then reseat the grommet. This step is not required for other supported vehicles.
The T-Connector uses a 15 amp fuse. The fuse is installed into the yellow fuse holder after the battery is reconnected.
The T-Connector uses yellow/brown wires, green wire, black wire, and white wire. The yellow/brown wires connect to the driver's side taillight, the green wire connects to the passenger's side taillight, the black wire connects to the battery positive terminal via a fuse holder, and the white wire is grounded.
The black wire is 12 gauge (12 ga.). This wire connects from the fuse holder to the T-Connector's black box and carries power from the vehicle's battery.
The T-Connector includes yellow butt connectors (used to connect the black wires and to connect the fuse holder to the black 12 ga. wire), a yellow fuse holder with a ring terminal, an eyelet and screw for grounding the white wire, cable ties for securing the harness, double-sided tape for mounting the black box, and a 4-Flat connector. The manual notes to store the 4-Flat connector in the rear cargo area when not in use.
Separate the vehicle's taillight wiring connectors carefully without breaking the locking tabs. Verify that the mating surfaces match and are clean and free of dirt. Plug the T-Connector harness between the vehicle's mating connectors, ensuring the connectors are fully inserted with locking tabs in place. This is done separately for the driver's side (yellow/brown wires) and passenger's side (green wire).
For Ford Edge/Lincoln MKX: Route the black wire from the T-Connector's black box through the opening in the taillight pocket, down behind the bumper, along the exterior frame or existing wiring along the thresholds, into the engine compartment, and up to the battery. For other vehicles: Route the black 12 ga. wire from the front of the vehicle rearward along the frame rail, then to the rear driver's side, up through the opening between the bumper and body, and connect to the T-Connector's black box. Avoid hot pipes, heat shields, fuel tank, and pinch points.
For Ford Edge/Lincoln MKX: Mount the black box in the driver's side storage area using the supplied double-sided tape. First, clean a flat area using a mixture of rubbing alcohol and water. For other vehicles: Mount the black box using the supplied double-sided tape. The manual warns that the module must be mounted with the epoxy side pointing toward the ground to prevent water buildup.
Use the supplied cable ties to secure the remainder of the T-Connector harness. Be careful to avoid areas that would cut or pinch the wire. For Ford Edge/Lincoln MKX, secure the harness in the driver's side storage area. For other vehicles, secure the harness under the bumper.
After reconnecting the battery and installing the 15 amp fuse, reset the vehicle's electrical system by temporarily removing the key from the ignition. Then test and verify the installation with a test light or trailer. All connections must be complete for the T-Connector to function properly.
Overloading circuits can cause fires. Do not exceed the stated product ratings or the towing manufacturer rating listed in your vehicle's owner's manual. Always wear safety glasses and use all safety precautions during installation. Read and follow all warnings and instructions printed on the tow vehicle's battery.
Route wires carefully to avoid hot pipes, heat shields, the fuel tank, and any other points that may pinch or break the wire. Do not route wires through areas where they could be cut or damaged. Secure wires with the supplied cable ties. Verify what is behind any surface before drilling.
The T-Connector is a trailer wiring harness that allows you to connect a trailer to your vehicle. It intercepts the vehicle's taillight wiring and provides a connection point for a trailer's lighting system via a 4-Flat connector.
Yes, the T-Connector (118551-037) is designed for Ford Edge and Lincoln MKX vehicles. Installation requires taillight removal, trim panel access, and battery disconnection.
Yes. The T-Connector fits these vehicles with a different installation procedure than Ford Edge/Lincoln MKX. Taillights are removed via screws, and wiring is routed through the bumper opening.
For Ford Edge/Lincoln MKX: Trim Panel Remover, 10mm and 20mm sockets/wrenches, 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Philips screwdriver, and test-probe. For other vehicles: 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Philips screwdriver, and test-probe.
Yes. Disconnect the vehicle's Negative (-) battery cable before connecting the fuse holder to the Positive (+) battery cable. Reconnect after the fuse holder is installed.
The T-Connector uses a 15 amp fuse installed in the supplied yellow fuse holder.
Yellow/brown wires (driver's side taillight), green wire (passenger's side taillight), black wire (12 ga., battery positive via fuse), and white wire (ground).
Verify that all connections are complete. Ensure the 15 amp fuse is installed in the yellow fuse holder. Reset the vehicle's electrical system by temporarily removing the key from the ignition. Check that all T-Connector harness connections to the taillight wiring are fully inserted with locking tabs in place. Test the installation with a test light or trailer. If the issue persists, verify that the mating surfaces of all connectors are clean and free of dirt.
The T-Connector black box must be mounted with the epoxy side pointing toward the ground to prevent water buildup. If water is accumulating, remount the module in the correct orientation using the supplied double-sided tape.
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