Trailer Wiring and Bracket For 16‑19 Toyota Prius Except Prime 4‑Flat Harness Plug Play
Model: 118701 118144Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
Installation Instructions
Fits The Following Vehicles
2016 - 2019 Toyota, Prius, Except Prime
Direct Plug & Play Wiring Kit
Wiring Kit Specs:
| Part Number | 118701 |
| 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 |
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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Product Details
- Brand: Tekonsha
- Model: 118701 118144
- Includes: T-One T-Connector Custom Harness, Mounting Bracket
Compatibility Chart
Description
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
Installation Instructions
Fits The Following Vehicles
2016 - 2019 Toyota, Prius, Except Prime
Direct Plug & Play Wiring Kit
Wiring Kit Specs:
| Part Number | 118701 |
| 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 |
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 For 16-19 Toyota Prius Except Prime 4-Flat Harness Plug Play Install Notes
Installation Instructions for T-One® T-Connector for Toyota Prius
Part Numbers:
- 118701
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or 10mm Wrench
- 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 behind the taillights.
-
Locate the Wiring Harness:
- On both driver and passenger sides, locate the vehicle's taillight wiring harness.
- Separate the connectors carefully, ensuring not to break the locking tabs. Clean all connector surfaces.
-
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 to the passenger side, behind the panels and along the threshold.
- Repeat Step 3 for the passenger-side connector.
-
Route the Red Wire:
- Locate the rubber grommet in the trunk area under the floor covering.
- Unseat the grommet and route the connector with the red wire through the hole to the underside of the vehicle.
-
Connect the Red Wire:
- Underneath the vehicle, locate the black two-pin connector on the driver’s side.
- Separate the connector and insert the T-One® T-Connector end with the red wire between the vehicle wiring connectors.
-
Seal the Grommet:
- Slit the grommet with a utility knife, place the red wire in the slit, and reseat the grommet.
-
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:
- Inside the vehicle, connect the black 12-gauge wire to the black wire from the T-One® T-Connector black box using the yellow butt connector.
- Route the black wire through a grommet and along the exterior frame or existing wiring into the engine compartment, avoiding areas that may pinch or damage the wire.
Warning: Avoid routing the wire near hot pipes, heat shields, or fuel tanks.
-
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 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 Black Box Module:
- Locate a flat, out-of-the-way surface and mount the black box module to prevent damage or rattling.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the wiring harness, avoiding areas that may pinch, cut, or melt the wires.
-
Reassemble the Vehicle:
- Replace the carpet and any clips or panels removed during installation.
- Ensure no wires are pinched or damaged.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the trunk area 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.
Installation Instructions for T-One® T-Connector for Toyota Prius
Part Numbers:
- 118701
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or 10mm Wrench
- 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 behind the taillights.
-
Locate the Wiring Harness:
- On both driver and passenger sides, locate the vehicle's taillight wiring harness.
- Separate the connectors carefully, ensuring not to break the locking tabs. Clean all connector surfaces.
-
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 to the passenger side, behind the panels and along the threshold.
- Repeat Step 3 for the passenger-side connector.
-
Route the Red Wire:
- Locate the rubber grommet in the trunk area under the floor covering.
- Unseat the grommet and route the connector with the red wire through the hole to the underside of the vehicle.
-
Connect the Red Wire:
- Underneath the vehicle, locate the black two-pin connector on the driver’s side.
- Separate the connector and insert the T-One® T-Connector end with the red wire between the vehicle wiring connectors.
-
Seal the Grommet:
- Slit the grommet with a utility knife, place the red wire in the slit, and reseat the grommet.
-
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:
- Inside the vehicle, connect the black 12-gauge wire to the black wire from the T-One® T-Connector black box using the yellow butt connector.
- Route the black wire through a grommet and along the exterior frame or existing wiring into the engine compartment, avoiding areas that may pinch or damage the wire.
Warning: Avoid routing the wire near hot pipes, heat shields, or fuel tanks.
-
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 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 Black Box Module:
- Locate a flat, out-of-the-way surface and mount the black box module to prevent damage or rattling.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the wiring harness, avoiding areas that may pinch, cut, or melt the wires.
-
Reassemble the Vehicle:
- Replace the carpet and any clips or panels removed during installation.
- Ensure no wires are pinched or damaged.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the trunk area 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.
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 trunk area when not in use to prevent damage.
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