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Trailer Wiring and Bracket For 22‑23 Chevrolet Bolt EUV Plug & Play 4‑Flat Harness
Model: 118845 118144Includes Everything Pictured:
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
Installation Instructions
Fits The Following Vehicles
Wiring Kit Specs:
| Part Number | 118845 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |  |
4-Flat Mounting Bracket
| 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 |
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
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Product Details
- Brand: Tekonsha
- Model: 118845 118144
- Includes: T-One T-Connector Custom Harness, Mounting Bracket
Compatibility Chart
| Year Range | Make | Model | Style |
|---|
Description
Includes Everything Pictured:
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
Installation Instructions
Fits The Following Vehicles
Wiring Kit Specs:
| Part Number | 118845 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions | |
4-Flat Mounting Bracket
| 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 |
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
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Trailer Wiring and Bracket For 22-23 Chevrolet Bolt EUV Plug & Play 4-Flat Harness Install Notes
Installation Instructions for T-One® T-Connector for Chevrolet Bolt EUV
Part Numbers:
- 118845
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or Wrench
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Open the Rear Hatch:
- Temporarily remove the rear threshold plate, privacy screen, storage covers, and floor covering.
- Open the rear door and fold the rear seats forward.
-
Access the Vehicle Wiring:
- On the driver’s side, use a 10mm socket or wrench to remove the cargo hooks.
- Partially pull back the interior trim panel to expose the vehicle’s wiring connectors.
-
Connect the Driver-Side T-Connector:
- Insert the T-One® Connector end containing the brown wire between the vehicle’s mating connectors.
- Ensure the connectors are fully inserted and securely locked.
-
Mount the Black Box:
- Locate a flat surface in an out-of-the-way location to mount the T-One® T-Connector’s black box using the provided double-sided tape.
- Secure the remaining harness with cable ties to prevent rattling or damage.
Caution: Verify what is behind any surface before drilling to avoid vehicle or personal damage.
-
Ground the White Wire:
- Locate a suitable grounding point near the black box, such as the vehicle’s frame or crossmember.
- Clean the grounding area of dirt and rustproofing.
- Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
Warning: Do not drill into the vehicle floor or exposed surfaces.
-
Route the T-Connectors to the Taillights:
- Route the yellow and green wires through the vehicle’s central vent and out to the rear fascia.
- Starting at the center, route the yellow wire to the driver-side taillight pocket and the green wire to the passenger side.
-
Connect the Passenger-Side T-Connector:
- Insert the green wire connector between the passenger-side wiring connectors.
- Lock it in place, ensuring no damage to the locking tabs.
-
Connect the Power Wire:
- Disconnect the vehicle’s Negative (-) battery cable.
- Remove the fuse from the provided yellow fuse holder.
- Attach the ring terminal to the Positive (+) battery cable and secure it.
- Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.
-
Route the Power Wire:
- Route the black 12-gauge wire along the vehicle’s frame to the engine compartment.
- Avoid routing near hot pipes, heat shields, or any points that may pinch or damage the wire.
-
Connect the Power Wire to the Black Box:
- Attach the black 12-gauge wire to the power wire on the T-One® Connector black box using the provided yellow butt connector.
-
Reconnect the Battery and Test:
- Reconnect the Negative (-) battery cable.
- Install the 15-amp fuse into the fuse holder.
- Test the installation using a test light or trailer. Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
-
Reassemble the Vehicle:
- Replace all plastic trim panels, cargo covers, 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 rear cargo area when not in use.
- When in use, pull the connector through the door carefully, avoiding pinching in the door latch.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings.
- Always wear safety glasses and follow all 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.
- Follow all warnings and instructions printed on the tow vehicle’s battery.
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