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Tekonsha
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Quality Products
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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: | 119193 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.5 LBS |
| UNIVERSAL OR SPECIFIC FIT: | UNIVERSAL |
| TERMINAL QUANTITY: | 12 |
| WIRE COLORS: | BLACK, GREEN, WHITE, BLUE, BROWN, YELLOW, RED |
| CIRCUIT PROTECTED: | YES |
| HARDWARE INCLUDED: | YES |
| POWER LEAD REQUIRED: | YES |
| WIRE GAUGE: | 12 GA., 14 GA., 18 GA., 16 GA. |
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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Part number 119193 is the Modulite HD Ultra W/Backup, a tow vehicle wiring harness that converts vehicle electrical signals (taillights, brake, turn, and reverse) to trailer lighting outputs. It requires a separate wiring kit (part number 118151) for complete installation.
The 119193 is compatible with vehicles using 2-wire, 3-wire, BT (brake/tail multiplexed), or BTT (brake/turn/tail multiplexed) electrical systems. However, it may not work with some BTT systems; in those cases, you may need to route the tail wire to the rear license plate illumination circuit and/or brake to the center high stop light.
Wiring kit part number 118151 is required and sold separately. This kit includes cable ties and other wiring components necessary for complete installation.
Required tools include: safety glasses, Phillips screwdriver, wire stripper, wire crimper, heat gun, drill with 3/32" drill bit, and test light. The hardware kit includes heat shrinkable butt connectors, spade terminals, #8 screws, wire taps, 25-amp fuse, double-sided tape, fuse holder, and ring terminal.
Yes. You must locate the vehicle's battery, disconnect and isolate the negative battery cable before beginning installation. The 25-amp fuse must also be removed from the fuse holder before connecting to the battery.
The 119193 uses a 25-amp fuse. The fuse must be removed before battery connection and inserted into the fuse holder only after all other connections are complete and verified.
Drilling may be required. You must drill a 3/32" hole to secure the white ground wire using the eyelet and #8 screw provided. However, you must verify what is behind any surface before drilling to avoid damage to the vehicle, and you must NOT drill into the vehicle floor or bed.
Output wires are: blue (reverse), brown (taillights), green (right turn/brake), yellow (left turn/brake), and white (ground). Input wires are: black (power B+), red (stop/brake), and the same colors for turn/tail functions. The specific input wire connections depend on your vehicle's wiring system type (2-wire, 3-wire, BT, or BTT).
Always wear safety glasses during installation. DO NOT touch the negative battery terminal to the positive battery terminal (serious injury and vehicle electrical damage can occur). DO NOT exceed stated product ratings. Overloading circuits can cause fires. Read and follow all warnings and cautions printed on the tow vehicle's battery.
After inserting the 25-amp fuse and reconnecting the negative battery cable, test and verify installation with a test light or trailer. Activate each function separately for approximately 5 seconds (taillights, brake, left turn, right turn), then test each function independently and in combination. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition.
The 119193 is a tow vehicle wiring harness module that converts your vehicle's electrical signals into trailer lighting outputs. It processes taillights, brake, turn, and reverse signals and outputs them through optional 4-way flat, 5-way flat, or 7-way connectors. Installation requires a separate wiring kit (part number 118151).
No. The 119193 module must be purchased with a separate wiring kit (part number 118151), which is sold separately and includes cable ties and other wiring components necessary for installation.
The 119193 works with four types of vehicle wiring systems: Type A (2-wire: turn and brake combined, separate tail), Type B (3-wire: turn, brake, and tail all separate), Type BT (brake/tail combined, separate turns), and Type BTT (all functions combined). Determine your vehicle's system type by identifying whether turn, brake, and tail functions are on separate wires or combined. The manual provides a detailed table showing which input wires to use for each system type.
The 119193 may not work with some BTT wiring systems. If it does not function properly with your BTT system, you may need to route the tail wire to the rear license plate illumination circuit and/or the brake wire to the center high stop light. Contact technical support at 800-632-3290 if you encounter this issue.
The hardware kit includes: heat shrinkable butt connectors, spade terminals, #8 screws, wire taps (for 16–18-gauge wire only), one 25-amp fuse, double-sided tape, fuse holder, ring terminal, eyelet, and test light. Cable ties are sold separately as part of wiring kit 118151.
Use appropriate gauge wire splices for your vehicle's wiring. The blue wire taps provided are for 16–18-gauge wire only. The module's black power wire must be connected to a 12-gauge (or larger gauge) wire.
The 119193 is rated as Expert installation difficulty. Installation times vary depending on installer expertise and vehicle condition. For specific installation times, visit the Horizon Global website or consult downloadable application guides.
The manual rates the 119193 as Expert installation difficulty. While the manual does not explicitly require professional installation, the complexity and electrical safety considerations suggest that professional installation may be advisable. Contact Horizon Global technical support at 800-632-3290 for guidance on your specific situation.
Determine a suitable mounting location for the module and secure it using the double-sided tape provided. The module must be mounted so that the epoxy side points toward the ground to prevent water buildup. Before mounting, verify what is behind any surface to avoid damage to the vehicle. Do not drill into exposed surfaces.
First, disconnect and isolate the vehicle's negative battery terminal. Determine your vehicle's wiring system type (A, B, BT, or BTT) using the manual's table. Splice the harness input wires to the corresponding vehicle wires using appropriate gauge wire splices. Use the provided blue wire taps for 16–18-gauge wire only. Heat the shrinkable butt connector using a heat gun, starting from the center and working outward until the tubing shrinks and sealant flows. Allow to cool before inspecting the splice.
Route the black power wire to the vehicle's positive side of the battery. Using the fuse holder, butt connector, and ring terminal provided, connect to the battery. Ensure the 25-amp fuse is removed from the fuse holder before making the battery connection. The fuse should only be inserted after all other connections are complete and verified.
Locate a suitable grounding point near the module, such as an existing ground stud. If no suitable point exists, drill a 3/32" hole and secure the white ground wire using the eyelet and #8 screw provided. Clean dirt and rustproofing from the area before securing. Do not drill into the vehicle floor or bed.
Route the wiring harness carefully to avoid hot pipes, heat shields, fuel tanks, or any other points that may pinch or break the wire. Secure the harness with cable ties (purchased separately as part of wiring kit 118151) to prevent damage or rattling. Be careful to avoid areas that would pinch, cut, or melt the wire.
Drill a 3/32" hole to secure the white ground wire using the eyelet and #8 screw provided. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor or bed.
The 119193 must be connected to a constant power source (B+). Do not use an alternative power source that is interrupted when the vehicle is off. The module's black power wire must be connected to a 12-gauge (or larger gauge) wire routed to the vehicle's positive battery terminal.
For Type A systems (where turn and brake functions are combined in one wire and taillight is separate): connect yellow to the vehicle's left turn/brake wire, green to the vehicle's right turn/brake wire, and brown to the vehicle's tail wire. The red brake wire is not used.
For Type B systems (where turn, brake, and taillight functions are on separate wires): connect yellow to the vehicle's left turn wire, green to the vehicle's right turn wire, brown to the vehicle's tail wire, and red to the vehicle's brake wire. All wires are used.
For Type BT systems (where brake and tail functions are combined on one wire and turn functions are on separate wires): connect yellow to the vehicle's left turn wire, green to the vehicle's right turn wire, and red to the vehicle's brake/tail wire. The brown tail wire is not used.
For Type BTT systems (where brake, turn, and tail functions are combined on one wire): connect yellow to the vehicle's brake/tail/left turn wire and green to the vehicle's brake/tail/right turn wire. The brown tail wire and red brake wire are not used. Note: the module may not work with some BTT systems; if so, you may need to route the tail wire to the rear license plate illumination circuit and/or brake to the center high stop light.
When using a voltmeter or circuit tester, carefully probe one wire at a time. Do not probe across two wires or across the vehicle structure. Determine your vehicle's wiring system type and locate the required input functions before splicing.
Do not touch the negative battery terminal to the positive battery terminal. Serious injury and damage to the vehicle's electrical system can occur. Always disconnect and isolate the negative battery cable before beginning installation, and be careful when handling battery connections.
The 119193 uses a 25-amp fuse. Do not exceed the lower of the towing manufacturing rating (including in your vehicle owner's manual) or the specific amperage rating stated on the product. Overloading circuits can cause fires.
After installation, test and verify with a test light or trailer. Activate each function separately for approximately 5 seconds (taillights, brake, left turn, right turn), then test each function independently and in combination. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. Ensure all connections are complete and the 25-amp fuse is properly inserted.
Perform a pre-trip inspection of the 4-way flat harness to ensure no damage to terminals and connection points. Clean the 4-way flat connector after each use. Clean the connection and add dielectric grease (sold separately) to the terminal pins. Ensure the 4-way flat harness does not get pinched in door latches, trailer connection points, or contact the road surface.
Yes. For routine maintenance, clean the 4-way flat connector connection and add dielectric grease (sold separately) to the terminal pins. This helps protect the connection from corrosion and moisture.
First, ensure connection points are fully inserted and locked in place. Remove the module's power fuse for 10 seconds and repeat the test. Check chassis grounds and ensure ring terminals are in full contact with the vehicle chassis. If the issue persists, contact technical support at 800-632-3290.
Check the following: (1) Ensure the fuse is fully inserted into the fuse holder with no breaks. (2) Verify the fuse holder is connected properly to the positive post of the battery. (3) Ensure the module is connected to B+ (constant power). (4) Using a tester or voltmeter, check for voltage on either side of the yellow butt connector near the module. (5) Remove the module's power fuse for 10 seconds and repeat the test. If installation may have activated circuit protection, start the vehicle and turn all functions off (tail/headlights, brake, and turns), then remove the fuse for 10 seconds and repeat.
Ensure connection points are fully inserted and locked in place. Remove the module's power fuse for 10 seconds and repeat the test. If still not functioning, check chassis grounds and ensure ring terminals are in full contact with the vehicle chassis.
Check: (1) Fuse is fully inserted with no breaks; (2) Fuse holder is connected to positive battery post; (3) Module is connected to B+; (4) Voltage exists on both sides of the yellow butt connector near the module using a tester or voltmeter. If circuit protection was activated, start the vehicle and turn off all functions (tail, brake, turns), remove the fuse for 10 seconds, and retest.
Ann
Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023
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