Trailer Wiring and Bracket w/ Light Tester For 16‑19 Chevy Volt All Styles 4‑Flat Harness Plug Play
Model: 118726 118144 20114Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
This Hitch Fits The Following Vehicles:
2016 - 2019 Chevrolet, Volt, All Styles
Direct Plug & Play Wiring Kit
Wiring Kit Specs:
| Part Number | 118726 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |  |
| Part Number | 118144 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| Mounts electrical connector to attachment bracket Includes screws and nuts Attractive point-of-purchase packaging |
|
| Warranty | 1 Year |
| Part Number | 20114 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| 4-Flat Car End Tester w/LED Display Plug these testers into any car connector and you will have an instant test of running light circuits. |
|
| Warranty | 1 Year |
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 17 18 19 2016 2017 2018 2019
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$117.37 $87 39
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Product Details
- Brand: Tekonsha
- Model: 118726 118144 20114
- Includes: T-One T-Connector Custom Harness, Mounting Bracket, 4-Flat Car End Tester
Compatibility Chart
Description
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
This Hitch Fits The Following Vehicles:
2016 - 2019 Chevrolet, Volt, All Styles
Direct Plug & Play Wiring Kit
Wiring Kit Specs:
| Part Number | 118726 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions | |
| Part Number | 118144 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| Mounts electrical connector to attachment bracket Includes screws and nuts Attractive point-of-purchase packaging |
|
| Warranty | 1 Year |
| Part Number | 20114 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| 4-Flat Car End Tester w/LED Display Plug these testers into any car connector and you will have an instant test of running light circuits. |
|
| Warranty | 1 Year |
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 17 18 19 2016 2017 2018 2019
Get Expert Help
Trailer Wiring and Bracket w/ Light Tester For 16-19 Chevy Volt All Styles 4-Flat Harness Plug Play Install Notes
Installation Instructions for T-One® T-Connector for Chevy Volt LT Hatchback
Part Numbers:
- 118726
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:
-
Remove the Taillights:
- Open the vehicle hatch to access the taillights.
- Remove the taillights on both the driver and passenger sides to access the vehicle’s wiring.
-
Mount the Black Box Module:
- Locate the aluminum bumper support brace on the driver’s side.
- Mount the black box to the support brace using the provided cable tie.
Warning: Ensure the epoxy side of the module is facing downward to prevent water buildup.
-
Connect the Driver-Side T-Connector:
- Separate the vehicle's wiring connectors carefully, avoiding damage to the locking tabs.
- Route the T-Connector end with the yellow and brown wire upward between the bumper cover and rear body panel into the taillight pocket.
- Connect the T-Connector with the vehicle’s wiring connectors and ensure all connections are secure.
-
Route the Passenger-Side T-Connector:
- Route the green and red wire along the metal bumper to the passenger’s side.
- Fish the T-Connector end with the green and red wire upward between the bumper cover and rear body panel into the taillight pocket.
- Repeat Step 3 for the passenger side using the T-Connector with the green and red wire.
Caution: Avoid routing wires near hot pipes, heat shields, the fuel tank, or any other hazardous points.
-
Ground the White Wire:
- Locate a suitable grounding point near the black box, such as an existing ground stud, or drill a 3/32” hole.
- Secure the white wire using the provided eyelet and screw.
- Clean dirt and rustproofing from the area before grounding.
Caution: Verify the area behind the surface before drilling to avoid damage or injury.
-
Connect the Power Wire:
- On the driver’s side, locate the black 12-gauge power wire from the T-Connector box.
- Attach the provided black 12-gauge wire and route it along the exterior frame or follow the existing wiring to the engine compartment.
- Avoid areas that may pinch or break the wire.
Warning: If routing through a grommet and along the exterior, avoid hot pipes, heat shields, or other hazardous areas.
-
Connect to the Battery:
- Disconnect the vehicle’s Negative (-) battery cable.
- 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 provided yellow butt connector.
-
Reconnect the Battery and Test:
- Reconnect the vehicle’s Negative (-) battery cable.
- Insert the 15-amp fuse into the fuse holder and test the installation with a test light or trailer.
- Reset the vehicle's electrical system by temporarily removing the key from the ignition.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the T-Connector harness.
- Avoid areas that may pinch, cut, or melt the wire.
-
Reassemble the Vehicle:
- Reinstall the taillights, plastic trim panels, threshold, storage covers, floor covering, and other removed components.
- Ensure no wires are pinched or damaged.
-
Mount the 4-Flat Connector:
- Mount the 4-flat end in an accessible location using a bracket or electrical box (not included).
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.
Installation Instructions for T-One® T-Connector for Chevy Volt LT Hatchback
Part Numbers:
- 118726
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:
-
Remove the Taillights:
- Open the vehicle hatch to access the taillights.
- Remove the taillights on both the driver and passenger sides to access the vehicle’s wiring.
-
Mount the Black Box Module:
- Locate the aluminum bumper support brace on the driver’s side.
- Mount the black box to the support brace using the provided cable tie.
Warning: Ensure the epoxy side of the module is facing downward to prevent water buildup.
-
Connect the Driver-Side T-Connector:
- Separate the vehicle's wiring connectors carefully, avoiding damage to the locking tabs.
- Route the T-Connector end with the yellow and brown wire upward between the bumper cover and rear body panel into the taillight pocket.
- Connect the T-Connector with the vehicle’s wiring connectors and ensure all connections are secure.
-
Route the Passenger-Side T-Connector:
- Route the green and red wire along the metal bumper to the passenger’s side.
- Fish the T-Connector end with the green and red wire upward between the bumper cover and rear body panel into the taillight pocket.
- Repeat Step 3 for the passenger side using the T-Connector with the green and red wire.
Caution: Avoid routing wires near hot pipes, heat shields, the fuel tank, or any other hazardous points.
-
Ground the White Wire:
- Locate a suitable grounding point near the black box, such as an existing ground stud, or drill a 3/32” hole.
- Secure the white wire using the provided eyelet and screw.
- Clean dirt and rustproofing from the area before grounding.
Caution: Verify the area behind the surface before drilling to avoid damage or injury.
-
Connect the Power Wire:
- On the driver’s side, locate the black 12-gauge power wire from the T-Connector box.
- Attach the provided black 12-gauge wire and route it along the exterior frame or follow the existing wiring to the engine compartment.
- Avoid areas that may pinch or break the wire.
Warning: If routing through a grommet and along the exterior, avoid hot pipes, heat shields, or other hazardous areas.
-
Connect to the Battery:
- Disconnect the vehicle’s Negative (-) battery cable.
- 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 provided yellow butt connector.
-
Reconnect the Battery and Test:
- Reconnect the vehicle’s Negative (-) battery cable.
- Insert the 15-amp fuse into the fuse holder and test the installation with a test light or trailer.
- Reset the vehicle's electrical system by temporarily removing the key from the ignition.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the T-Connector harness.
- Avoid areas that may pinch, cut, or melt the wire.
-
Reassemble the Vehicle:
- Reinstall the taillights, plastic trim panels, threshold, storage covers, floor covering, and other removed components.
- Ensure no wires are pinched or damaged.
-
Mount the 4-Flat Connector:
- Mount the 4-flat end in an accessible location using a bracket or electrical box (not included).
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.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
Note: Store the 4-flat connector in the rear cargo area when not in use to prevent damage.
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