Trailer Wiring Harness Kit For 2016 Hyundai Elantra 4 Dr. Limited Models Only
Model: 1186782016 Hyundai, Elantra, 4 Dr. Limited Models Only
Direct Plug & Play Wiring Kit
| Part Number | 118678 |
| 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:
16 2016
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$93.80 $65 19
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Product Details
- Brand: Tekonsha
- Model: 118678
- UPC: 016118135343
- Includes: T-One T-Connector Custom Harness
Compatibility Chart
Description
2016 Hyundai, Elantra, 4 Dr. Limited Models Only
Direct Plug & Play Wiring Kit
| Part Number | 118678 |
| 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:
16 2016
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Trailer Wiring Harness Kit For 2016 Hyundai Elantra 4 Dr. Limited Models Only Install Notes
Installation Instructions for T-One® T-Connector for Hyundai Elantra
Part Numbers:
- 118678
Tools Required:
- Trim Panel Remover
- Drill (3/32” Drill Bit)
- 1/4” Socket
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Open the Trunk:
- Temporarily remove the rear threshold plate.
- Partially remove the felt trunk liner on both sides, exposing the vehicle’s taillight wiring harness.
-
Locate the Vehicle’s Wiring Harness:
- On both the driver and passenger sides of the vehicle, locate the taillight wiring harness plugged directly into the taillight socket.
- Separate this connector carefully, ensuring not to break the locking tabs. Ensure all connector surfaces are clean and free of dirt.
-
Connect the Driver-Side T-Connector:
- Insert the T-One® T-Connector end with the yellow wire between the vehicle wiring connectors.
- Ensure connectors are fully inserted and locking tabs are secure.
-
Route the Passenger-Side T-Connector:
- Route the T-One® T-Connector end with the green wire under the felt trunk liner to the passenger-side taillight wiring harness.
- Repeat Step 3 for the passenger-side T-Connector.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector.
- Clean dirt and rustproofing from the area.
- Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
Caution: Verify the area behind any surface before drilling to avoid damage or injury.
-
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 and secure.
- Connect the other end of the fuse holder to the black 12-gauge wire using the yellow butt connector (provided).
Warning: Follow all warnings and cautions related to the tow vehicle’s battery.
-
Route the Black Power Wire:
- Route the black wire out of the engine compartment along the exterior frame or through the interior, following the existing wiring to the rear of the vehicle.
- Avoid routing near hot pipes, heat shields, fuel tanks, or any areas that may pinch or damage the wire.
-
Connect the Black Power Wire:
- Attach the black 12-gauge wire to the black wire from the T-Connector black box using the supplied yellow butt connector.
-
Reconnect the 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.
-
Mount the T-Connector Black Box:
- Mount the T-One® T-Connector black box using the provided double-sided tape.
- Secure the wiring harness with the provided cable ties, avoiding areas that may pinch or damage the wires.
-
Reassemble the Vehicle:
- Reinstall the felt trunk liner, threshold, and other components removed during installation.
- Ensure no wires are pinched or damaged.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the spare tire compartment when not in use.
Specifications:
- Max. stop/turn light: 2 per side (4.2 amps)
- Max. tail lights: 7.5 amps
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
- Always wear safety glasses and follow safety precautions during installation.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and the instruction sheet for additional details.
- Store these instructions for future reference.
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