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2021 - 2025 Chrysler Pacifica
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Tekonsha T-One connector (also referred to as T-Connector) wiring harnesses are the fastest and easiest way to add an electrical connector to the back of your vehicle. These connectors are used to link the wiring from your vehicle to the trailer when towing. Tekonsha T-One connectors feature custom designs to fit each vehicle make and model based on manufacturer specifications. Plus, the Plug & Play connectors on the end of the wires make it easy to install. No cutting or splicing!
Tekonsha offers the largest, most complete line of T-One connectors. To install a Tekonsha T-One wiring harness, simply locate your vehicle's wiring harness connector typically behind the vehicle taillight - unplug the connection and insert the T-Connector into the vehicle's harness. It's that easy! So what are you waiting for? Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 118835 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.75 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 4 |
| WIRE GAUGE: | 16 GA. |
| POWER LEAD REQUIRED: | YES |
| ELECTRICAL SYSTEM TYPE: | 2-WIRE SYSTEM |
| HARDWARE INCLUDED: | YES |
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 |
|---|---|---|
| 2021 - 2025 | Chrysler Pacifica | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
The 2021-2024 Chrysler Pacifica Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118835 (Part #TK118835) fits the following vehicles: 2021-2025 Chrysler Pacifica. Always verify your specific year, make, and model before ordering.
Yes, the 2021-2024 Chrysler Pacifica Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118835 (Part #TK118835) is designed to fit the 2021-2025 Chrysler Pacifica.
The 2021-2024 Chrysler Pacifica Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118835 (Part #TK118835) fits 2021-2025 Chrysler Pacifica models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2021-2024 Chrysler Pacifica Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118835 (Part #TK118835) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, the T-Connector is designed for the Chrysler Pacifica. The manual provides complete installation instructions specific to this vehicle.
The T-Connector is a trailer wiring interface that connects your vehicle's taillight system to a trailer. It allows you to plug in a trailer's 4-flat connector to control the trailer's lights using your vehicle's lighting signals.
You will need: Trim Panel Remover, 10mm Socket & Ratchet or 10mm Wrench, 8mm Socket & Ratchet or 8mm Wrench, Torx T27 Socket & Ratchet or Torx T27 Wrench, Drill with 3/32" Drill Bit, 1/4" Socket, Wire Crimpers, Wire Cutters, Philips Head Screwdriver, and Test-probe.
Yes. You must disconnect the vehicle's Negative (-) battery cable before connecting the power wire to the battery's Positive (+) terminal. This is done in Step 9 before attaching the fuse holder to the positive battery cable. Reconnect the negative cable only after the fuse holder connection is complete and the 15 amp fuse is installed.
Yes. You must drill a 3/32" hole on the driver's side near the taillight connectors to secure the white ground wire with an eyelet and screw. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces.
The T-Connector package includes: the T-Connector black box with yellow and green wire ends, a 4-Flat connector, double-sided tape for mounting, a yellow fuse holder with 15 amp fuse, a yellow butt connector, a white eyelet and screw for grounding, a black 12 ga. power wire, cable ties for securing the harness, and a ring terminal for battery connection.
Mount the T-Connector black box underneath the vehicle behind the rear bumper fascia on the driver's side using the double-sided tape provided. The unit must be in a protected area where it cannot be damaged by road debris or objects driven over. Mount it with the epoxy side pointed toward the ground to prevent water buildup. Ensure the trailer's wire harness has adequate length to reach this mounting point.
On the driver's side, fish the T-Connector end with yellow wires up between the bumper and vehicle body into the taillight pocket. Plug this yellow-wire end between the mating plugs on the driver's side taillight socket and vehicle wiring harness. On the passenger's side, route the T-Connector end with green wire and route the 4-Flat underneath the bumper, then up through the opening on the passenger side. Repeat the connection process on the passenger side. Mount the 4-Flat end in an accessible location with a bracket or electrical box (not included).
The T-Connector uses a 15 amp fuse. This fuse is installed in the yellow fuse holder that connects the power wire from the T-Connector box to the vehicle's positive battery cable.
Do not exceed the lower of your vehicle manufacturer's rating or these limits: Maximum stop/turn light: 2 per side (4.2 amps); Maximum tail lights: 7.5 amps. Overloading the circuit can cause fires. Consult your vehicle's owner's manual for additional information.
On the driver's side near the taillight connectors, locate a suitable grounding point. Drill a 3/32" hole and secure the white wire with an eyelet using the screw provided. Do not drill into any exposed surfaces. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury.
On the driver's side, locate the black 12 ga. power wire from the T-Connector box. Attach the black 12 ga. wire provided and route it along the exterior frame or follow existing wiring along the thresholds into the engine compartment up to the battery, avoiding areas that may pinch or break the wire. Disconnect the vehicle's Negative (-) battery cable. Remove the fuse from the yellow fuse holder if not already removed, cut the fuse holder wire, attach the ring terminal, and secure it to the vehicle's Positive (+) battery cable. Connect the other end of the fuse holder to the black 12 ga. wire using the yellow butt connector provided. Reconnect the Negative (-) battery cable and install the 15 amp fuse into the fuse holder.
Yes. You must open the rear tailgate and remove the taillights on both the driver and passenger side using a Torx T27 Socket & Ratchet or Torx T27 Wrench. After removing the screws, carefully pull the taillights away from the vehicle without damaging the alignment pins. Disconnect the vehicle wiring harness from both taillight sockets, being careful not to break the locking tabs. After installation is complete, reinstall the taillight assemblies carefully, ensuring you do not pinch or cut the wires.
Yes, you must partially remove the underbody trim panel underneath the vehicle by removing 8mm and 10mm bolts. This provides access to mount the T-Connector black box behind the rear bumper fascia on the driver's side.
Route the T-Connector end with green wire to the passenger's side and route the 4-Flat underneath the bumper. Route the T-Connector end with green wire up through the opening on the passenger side, being careful to avoid any hot pipes, heat shields, the fuel tank or any other points that may pinch or break the wire. Route the black power wire along the exterior frame or follow existing wiring along the thresholds into the engine compartment, avoiding areas that may pinch or break the wire. Secure the remainder of the T-Connector harness with the cable ties provided to prevent damage or rattling, being careful to avoid any areas that would pinch, cut or melt the wire.
All connections must be complete for the T-Connector to function properly. Test and verify the installation with a test light or trailer once installed. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition.
Always wear safety glasses and use all safety precautions during installation. Before drilling any holes, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces. When mounting under the vehicle, ensure the unit is in a protected area and cannot be damaged from road debris or objects driven over. Mount the module with the epoxy side pointed toward the ground to prevent water buildup. Read and follow all warnings and cautions printed on the tow vehicle's battery. Keep the installation instructions for future reference.
Yes. After disconnecting the vehicle wiring harness from the taillight sockets, all connector surfaces should be clean and free of dirt before making any connections.
Yes, the T-Connector (118835-037) is designed for the Chrysler Pacifica.
You need: Trim Panel Remover, 10mm and 8mm sockets/wrenches, Torx T27 socket/wrench, 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Philips screwdriver, and test-probe.
Yes, you must disconnect the Negative (-) battery cable before connecting the power wire to the Positive (+) terminal. Reconnect it only after the fuse holder is installed with the 15 amp fuse.
The T-Connector uses a 15 amp fuse. Do not exceed 2 stop/turn lights per side (4.2 amps) or 7.5 amps for tail lights.
Yes, you must remove both driver and passenger side taillights using a Torx T27 socket/wrench, disconnect the wiring, and reinstall them after routing the T-Connector wires.
The T-Connector has yellow wires (driver's side taillight connection), green wires (passenger's side taillight connection), black 12 ga. power wire (battery positive), and white wire (ground).
Verify that all connections are complete. The manual states that all connections must be complete for the T-Connector to function properly. Test and verify the installation with a test light or trailer. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. Check that the 15 amp fuse is installed in the fuse holder, the yellow-wire end is properly plugged between the driver's side taillight socket and vehicle harness, the green-wire end is properly plugged between the passenger's side taillight socket and vehicle harness, the white ground wire is securely fastened with the eyelet and screw, and the black power wire is properly connected to the vehicle's Positive (+) battery cable through the fuse holder.
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May 22, 2023
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