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Complete kit bundle containing all necessary components for your project. Professional-grade components designed for reliable performance and long-lasting durability.
Does your trailer have multiple tail lights or does the tail lights seem dim to you? Then it is possible you need a Modulite from Tekonsha. The Tekonsha Modulite product line has power modules designed to virtually eliminates additional electrical draw on the vehicle's tail light circuits. They help to ensures maximum trailer light brightness for your trailer tail lights. It powers the trailer's stop, turn, tail and running lights without overloading your vehicle electrical systems.
| BRAND: | TEKONSHA |
| PART NUMBER: | 119177 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.19 LBS |
| UNIVERSAL OR SPECIFIC FIT: | UNIVERSAL |
| TERMINAL QUANTITY: | 4 |
| WIRING HARNESS INCLUDED: | YES |
| CONVERTER TYPE: | Powered |
| CONNECTOR SHAPE: | RECTANGLE |
| ILLUMINATED: | NO |
Keywords: TK119177-40PK bundle kit, complete kit, professional components, industrial kit, TK119177, Tekonsha
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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The Circuit Protected Convertor is a trailer light power supply for 12-volt negative ground tow vehicles. It converts the tow vehicle's tail light signals (stop, turn, backup, and tail lights) to power a trailer connector, protecting the vehicle's electrical circuits from overload.
No. The convertor is designed for 12-volt negative ground systems only. It works on vehicles with either a 2-wire system (same bulb for stop and turn signals) or a 3-wire system (separate bulbs for stop and turn signals, with amber turn signals). You must determine which system your vehicle has before installation.
A 2-wire system uses the same bulb for both stop and turn signals. A 3-wire system has separate bulbs for stop and turn signals (both red) and amber turn signals. Note: Some vehicles like 1992–95 Ford Taurus sedans have a separate stop bulb but also a combination stop/turn bulb; these should be wired as 2-wire systems using the wires going to the common bulbs.
You will need: a drill with a 3/32" drill bit, wire crimpers, a Phillips head screwdriver, and a test probe (circuit tester). Some kits may also require a separate wiring kit sold separately.
The kit includes: a crimp-on spade terminal, an eyelet and screw for grounding the white wire, an in-line fuse holder, a 20-amp fuse, yellow butt connectors, and cable ties. The manual notes that some kits may require a separate wiring kit for installation.
Mount the convertor in an out-of-the-way spot near the left tail light, either in the trunk or on the frame rail if mounted under the vehicle. If mounting under the vehicle, ensure it is in a protected area where it cannot be damaged by road debris or objects driven over. The wiring must be directed downward; if that is impossible, direct it to the side.
Yes. You must disconnect and isolate the vehicle's negative (−) battery terminal before wiring the power supply. This is a required safety step. After connecting the 12-gauge wire to the fuse holder and routing it to the convertor, you reconnect the negative battery cable before testing.
Yes, you will need to drill a 3/32" hole to secure the white ground wire using the eyelet and screw provided. However, you can avoid drilling if you locate a suitable existing ground stud near the convertor. Do not drill into the vehicle floor or bed. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury, and do not drill into any exposed surfaces.
Before drilling the 3/32" hole, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor or bed, and do not drill into any exposed surfaces. After drilling, clean dirt and rustproofing from the area before securing the white wire with the eyelet and screw.
Use 12-gauge wire or larger gauge wire. This applies to the wire routed from the fuse holder to the convertor. The manual specifies 12 gauge (or larger gauge) wire for this critical power circuit.
Install a 20-amp fuse in the in-line fuse holder. The fuse should be installed after all other wiring steps are completed, not before.
The convertor uses the following wire colors: blue (left turn), green (right turn), red (stop/brake), yellow (tail lights), brown (backup lights), and white (ground). Yellow butt connectors are used to join wires, and blue wire taps are used at 4 or 5 places to connect to the tow vehicle's tail light circuits.
Using a ring terminal (3/8" for top terminal or 1/2" for side terminal), attach an in-line fuse holder (with fuse removed) to the positive (+) terminal of the battery. Cut the in-line fuse holder loop wiring. Then attach the 12-gauge wire to the fuse holder using a yellow butt connector. Route this wire from the fuse holder to the convertor, passing under or through the vehicle.
Route the 12-gauge wire from the fuse holder to the convertor by passing it under or through the vehicle. When passing the wire through sheet metal, always go through an existing grommet, add a new grommet, or use silicone rubber to insulate the wire from the hole. This prevents the wire from being damaged by sharp edges.
Attach the trailer wiring to the vehicle using wire splices, as shown in the installation illustration. Use appropriate gauge wire splices for the connection. The manual specifies that for a 2-wire system, crimp a spade terminal to the red "stop" wire and ground it with the white wire. For a 3-wire system, attach the red wire to the tow vehicle's brake light circuit. Use blue wire taps at 4 or 5 places to connect the other circuits.
Do not exceed the lower of the towing manufacturer's rating or these limits: maximum 2 stop/turn/backup lights per side (4.2 amps total), and maximum tail lights (7.5 amps). Overloading the circuit can cause fires. Consult your vehicle's owner's manual and the instruction sheet for additional information.
Wear safety glasses and use all safety precautions during installation. Read and follow all warnings and cautions printed on the tow vehicle's battery. Before drilling, verify what is behind the surface to avoid damage and personal injury. When using a circuit tester, probe one wire at a time and do not probe across two wires or between a wire and vehicle structure. Use appropriate gauge wire splices when connecting wires.
With the ground wire connected and all other circuits attached, attach the ground lead of a circuit tester to the exposed ground terminal of the 5-flat connector end. Activate the tow vehicle's left turn, right turn, tail, backup, and stop lights one at a time. Probe the four receptacles of the 5-flat end to confirm proper function of each circuit.
Secure all loose wires with cable ties after installation is complete. This prevents wires from moving, chafing, or becoming damaged during vehicle operation.
The convertor works on 12-volt negative ground vehicles with 2-wire or 3-wire tail light systems. Determine your system type: 2-wire uses the same bulb for stop and turn signals; 3-wire has separate bulbs for each. Consult your vehicle's manual or a fitment database for compatibility confirmation.
Tools: drill with 3/32" bit, wire crimpers, Phillips screwdriver, test probe. Included parts: spade terminal, eyelet, screw, in-line fuse holder, 20-amp fuse, yellow butt connectors, cable ties. Some kits require a separate wiring kit.
Yes, disconnect and isolate the negative battery terminal before wiring. Reconnect it after the 12-gauge power wire is routed to the convertor and before testing.
Drilling is required only if no existing ground stud is available near the convertor. You will drill a 3/32" hole to secure the white ground wire. Do not drill into the vehicle floor, bed, or exposed surfaces. Verify what is behind the surface before drilling.
Use 12-gauge wire or larger for the power circuit from the fuse holder to the convertor.
Install a 20-amp fuse in the in-line fuse holder after all other wiring steps are complete.
Do not exceed: 2 stop/turn/backup lights per side (4.2 amps) or maximum tail lights (7.5 amps). Overloading can cause fires. Consult your vehicle's owner's manual for the towing manufacturer's rating.
Use a circuit tester to probe each wire at the 5-flat connector end one at a time. Activate the corresponding tow vehicle light function (left turn, right turn, tail, backup, or stop) and confirm the tester shows power at the correct receptacle. If no power is detected, check that the ground wire is securely connected, the 20-amp fuse is installed and not blown, and all wire connections are properly crimped and seated.
An immediate fuse failure indicates a circuit overload or short circuit. Check that the total electrical load does not exceed the limits: maximum 2 stop/turn/backup lights per side (4.2 amps) or maximum tail lights (7.5 amps). Verify all wire connections are correct and that no wires are touching the vehicle chassis or each other. Ensure the ground wire is properly connected and not corroded.
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