Trailer Wiring and Bracket w/ Light Tester For 11‑14 Toyota Sienna 15‑20 Sienna SE Plug & Play 4‑Flat Harness
Model: 118498 118144 20114Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
Fits The Following Vehicles:
2011 - 2014 Toyota, Sienna, All Styles
2015 - 2020 Toyota, Sienna, SE Models Only
Wiring Kit Specs:
| Part Number | 118498 |
| 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:
11 12 13 14 15 16 17 18 19 20 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
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Product Details
- Brand: Tekonsha
- Model: 118498 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
Fits The Following Vehicles:
2011 - 2014 Toyota, Sienna, All Styles
2015 - 2020 Toyota, Sienna, SE Models Only
Wiring Kit Specs:
| Part Number | 118498 |
| 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:
11 12 13 14 15 16 17 18 19 20 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Get Expert Help
Trailer Wiring and Bracket w/ Light Tester For 11-14 Toyota Sienna 15-20 Sienna SE Plug & Play 4-Flat Harness Install Notes
Installation Instructions for T-Connector Adapter for Toyota Sienna
Part Numbers:
- 118498
Tools Required:
- 10mm Socket & Ratchet or 10mm Wrench
- 12mm Socket & Ratchet or 12mm Wrench
- Phillips Head Screwdriver
- Test Probe
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Trim Panel Remover
Step-by-Step Instructions:
-
Remove the Taillight Assemblies:
- Open the rear tailgate and remove two bolts securing each taillight.
- Carefully pry the taillight housings rearward, avoiding damage to the alignment tabs.
- Repeat for the passenger side.
-
Disconnect the Wiring Harness:
- Locate the taillight wiring harness on both sides of the vehicle.
- Separate the connectors, ensuring not to break the locking tabs.
- Clean the connector surfaces to remove dirt.
-
Remove Interior Panels:
- Temporarily remove the rear threshold plate by removing the cargo clips.
- Remove the jack storage compartment door on the passenger side.
- Carefully pull back the interior trim panels on both sides using a trim panel remover.
-
Mount the Black Box:
- Locate a suitable mounting location inside the rear quarter panel on the passenger side.
- Clean the area with a 50/50 water/alcohol solution.
- Mount the black box using the provided double-sided tape.
-
Connect the Passenger-Side T-Connector:
- Route the T-Connector ends with green and brown/red wires through the opening on the passenger side.
- Insert the T-Connector ends between the vehicle wiring connectors and lock them into place.
-
Connect the Driver-Side T-Connector:
- Route the T-Connector end with the yellow wire to the driver’s side behind the panels and along the threshold.
- Repeat Step 5 for the driver-side T-Connector with the yellow wire.
-
Ground the White Wire:
- Locate a suitable grounding point near the connectors.
- Secure the white wire with the provided ring terminal under an existing screw or by drilling a 3/32” hole.
Warning:
- Ensure all other ground connections are secure when removing and reattaching the ground stud.
-
Connect the Power Wire:
- Disconnect the negative (-) battery cable.
- Cut the yellow fuse holder wire and 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.
-
Route the Black Wire:
- Route the black wire through a grommet and along the exterior frame or follow existing wiring along the thresholds into the engine compartment up to the battery.
-
Connect the Power Wire to the Black Box:
- Connect the other end of the black 12-gauge wire to the red power wire on the T-Connector’s black box using the provided yellow butt connector.
-
Reconnect the Battery:
- Reconnect the negative (-) battery cable.
- Insert the 10-amp fuse into the fuse holder.
Warning:
- All connections must be complete for the T-Connector to function properly.
- Test and verify the installation with a test light or trailer.
-
Secure and Reassemble:
- Secure all loose wires with the provided cable ties.
- Reinstall the taillight assemblies, panels, and other items removed during installation.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the jack storage compartment when not in use.
- Route the 4-flat harness through the rear tailgate/door seal when in use.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps)
- Max. tail lights: (5.6 amps)
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the specified maximum ratings.
- Always follow all safety precautions and use safety glasses during installation.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and instruction sheet for additional details.
Installation Instructions for T-Connector Adapter for Vehicle
Part Numbers:
- 118498
Tools Required:
- 10mm Socket & Ratchet or 10mm Wrench
- 12mm Socket & Ratchet or 12mm Wrench
- Phillips Head Screwdriver
- Test Probe
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Trim Panel Remover
Step-by-Step Instructions:
-
Remove the Taillight Assemblies:
- Open the rear tailgate and remove two bolts securing each taillight.
- Carefully pry the taillight housings rearward, avoiding damage to the alignment tabs.
- Repeat for the passenger side.
-
Disconnect the Wiring Harness:
- Locate the taillight wiring harness on both sides of the vehicle.
- Separate the connectors, ensuring not to break the locking tabs.
- Clean the connector surfaces to remove dirt.
-
Remove Interior Panels:
- Temporarily remove the rear threshold plate by removing the cargo clips.
- Remove the jack storage compartment door on the passenger side.
- Carefully pull back the interior trim panels on both sides using a trim panel remover.
-
Mount the Black Box:
- Locate a suitable mounting location inside the rear quarter panel on the passenger side.
- Clean the area with a 50/50 water/alcohol solution.
- Mount the black box using the provided double-sided tape.
-
Connect the Passenger-Side T-Connector:
- Route the T-Connector ends with green and brown/red wires through the opening on the passenger side.
- Insert the T-Connector ends between the vehicle wiring connectors and lock them into place.
-
Connect the Driver-Side T-Connector:
- Route the T-Connector end with the yellow wire to the driver’s side behind the panels and along the threshold.
- Repeat Step 5 for the driver-side T-Connector with the yellow wire.
-
Ground the White Wire:
- Locate a suitable grounding point near the connectors.
- Secure the white wire with the provided ring terminal under an existing screw or by drilling a 3/32” hole.
Warning:
- Ensure all other ground connections are secure when removing and reattaching the ground stud.
-
Connect the Power Wire:
- Disconnect the negative (-) battery cable.
- Cut the yellow fuse holder wire and 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.
-
Route the Black Wire:
- Route the black wire through a grommet and along the exterior frame or follow existing wiring along the thresholds into the engine compartment up to the battery.
-
Connect the Power Wire to the Black Box:
- Connect the other end of the black 12-gauge wire to the red power wire on the T-Connector’s black box using the provided yellow butt connector.
-
Reconnect the Battery:
- Reconnect the negative (-) battery cable.
- Insert the 10-amp fuse into the fuse holder.
Warning:
- All connections must be complete for the T-Connector to function properly.
- Test and verify the installation with a test light or trailer.
-
Secure and Reassemble:
- Secure all loose wires with the provided cable ties.
- Reinstall the taillight assemblies, panels, and other items removed during installation.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the jack storage compartment when not in use.
- Route the 4-flat harness through the rear tailgate/door seal when in use.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps)
- Max. tail lights: (5.6 amps)
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the specified maximum ratings.
- Always follow all safety precautions and use safety glasses during installation.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Warranty Information:
- This product is covered by a [warranty period]. For complete warranty instructions, please download the full installation PDF.
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.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and instruction sheet for additional details.
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