Trailer Hitch Wiring Harness Kit For 22-23 Acura MDX Plug & Play
Trailer Hitch Wiring Harness Kit For 22-23 Acura MDX Plug & Play
$103.14
- Stock: In Stock
- Brand: Tekonsha
- Model: 118839
Verify Product Fitment
Includes Everything Pictured:
Wiring Harness (Plug & Play)
Installation Instructions
Installation Hardware
Wiring Harness (Plug & Play)
Installation Instructions
Installation Hardware
Fits The Following Vehicles
2022 - 2023 Acura, MDX, All Styles
Wiring Kit Specs:
| Part Number | 118839 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |  |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years:
22 23 2022 2023
Compatibility Chart:
Get Expert Help
Install Notes
Installation Instructions for T-One® Connector for Acura MDX
Part Numbers:
- 118839
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or 10mm Wrench
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Access Rear Wiring:
- Open the hatch and locate the trim panels covering the taillight mounting screws on both driver’s and passenger’s sides.
- Remove the mounting screws and carefully set the taillights aside without breaking the mounting tabs.
-
Disconnect Taillight Wiring Harness:
- Disconnect the vehicle wiring harness from both taillight sockets.
- Ensure all connector surfaces are clean and free of dirt.
-
Route the Driver-Side Harness:
- Route the harness containing the yellow wire underneath the vehicle and up through the opening between the bumper and body to the driver’s side taillight pocket.
-
Install Driver-Side T-One® Connector:
- Insert the T-One® Connector with the yellow wire between the vehicle’s mating connectors on the driver’s side.
Caution: Ensure the epoxy side of the module is pointed downward to prevent water buildup.
-
Mount the Black Box:
- Underneath the vehicle, find a suitable mounting point behind the rear bumper fascia on the driver’s side.
- Use the provided double-sided tape to mount the T-One® Connector black box.
Caution: Verify what is behind any surface before drilling to avoid damage or injury. Do not drill into exposed surfaces.
-
Ground the White Wire:
- Locate a grounding point near the black box, such as an existing ground stud, or drill a 3/32” hole.
- Clean the area of dirt and rustproofing, and secure the white wire using the provided eyelet and screw.
- Avoid drilling into the vehicle floor or bed.
-
Route the Passenger-Side Harness:
- Route the harness containing the green wire underneath the vehicle and up through the opening between the bumper and body to the passenger’s side taillight pocket.
-
Install Passenger-Side T-One® Connector:
- Insert the T-One® Connector with the green wire between the vehicle’s mating connectors.
- Ensure all connections are fully inserted with locking tabs in place.
-
Connect the Power Wire:
- Disconnect the vehicle’s Negative (-) battery cable.
- Remove the fuse from the yellow fuse holder (provided).
- Attach the ring terminal to the Positive (+) battery cable.
- Connect the other end of the fuse holder to the black 12-gauge wire using the yellow butt connector (provided).
Warning: Be cautious to avoid any hot pipes, heat shields, or fuel tanks when routing the wire.
-
Route the Black Power Wire:
- Starting from the front of the vehicle, route the black 12-gauge wire rearward along the frame rail.
- Avoid hot pipes, heat shields, and areas that may pinch or damage the wire.
-
Connect the Black Power Wire to the Black Box:
- Attach the black 12-gauge wire to the black power wire on the T-One® Connector’s black box using the yellow butt connector.
-
Reconnect Battery and Test:
- Reconnect the vehicle’s Negative (-) battery cable.
- Install the 15-amp fuse into the fuse holder.
- Test the installation with a test light or trailer.
- Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
-
Reassemble Components:
- Reinstall trim panels, thresholds, storage covers, and other removed components, ensuring wires are not pinched or damaged.
- Store the 4-Flat harness in an accessible location with a bracket or electrical box.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings.
- Always wear safety glasses and follow all precautions during installation.
- Refer to the vehicle owner’s manual and instruction sheet for additional details.
Manufacturer Notes:
- Do not exceed the lower of the tow vehicle’s manufacturer ratings or the specific amperage ratings stated on the product.
- Store these instructions for future reference.
