Brake Controller and Installation for a 2014 Lexus GX 460
Question:
your wiring harness has a ground wire attached, the harness the dealer included has a five wire pin connector black: fused trailer brake controller battery feed green: headlamp switch to vehicle tail lamp green- yellow: vehicle stop lamp switch to brake controller input white-black: trailer ground yellow: trailer electric brake feed from brake controller output the SUV is a 2014 Lexus GX460, with dealer installed hitch and 7 way connector. if I use the 3040-P harness what do I do with the ground wire and where to attach it, why isnt it included in the harness so it connects like the factory one. also any help on location for the unit would be appreciated, there is a knee airbag located in the area, doesnt seem to have a great place to mount unit on the right side. thanks any help would be great
asked by: Carl G
Expert Reply:
On your 2014 Lexus GX460 the Tekonsha Plug-In Wiring Adapter # 3040-P that you referenced would simply plug into the connector you found. The brake controller only needs 4 of the circuits in your connector to function. The battery power supply, stoplight circuit, ground, and brake output to run to your factory 7-way.
The additional ground wire should be run to a metal surface near the connector. The Toyota ground is not sufficient for aftermarket brake controllers. There should be a nut nearby that would allow you to install the ring connector onto. Check out the picture I attached that shows this connection being made on a similar vehicle.
After looking at interior pics of your vehicle I would install it just above the air bag panel on the right side of the steering column.
The brake controller we recommend the most is the Prodigy P2 Brake Controller part # 90885. This is the best selling controller on the market because of how easy it is to setup and use, and how well it works.
Products Referenced in This Question
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
Product Page this Question was Asked From
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Toyota and Lexus
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Shop: Redarc Tow-Pro Elite Brake Controller - Dash Knob - 2 Braking Modes - 1 to 3 Axles - Proportional
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Shop: Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Suspension Enhancement
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug Mount w/ Bluetooth App - 1 to 2 Axle - Proportional
- Shop: Redarc Tow-Pro Electric Brake Controller Mounting Kit
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Search Results: redarc trailer brake controller
- Search Results: redarc liberty
- Search Results: 3040~s
- Search Results: tpsi~002
- Search Results: tph021
- Search Results: redarc brake controller
- Search Results: redarc brake
- Shop: Trailer Wiring
- Shop: Tire Chains
- Video: Review of Curt Trailer Brake Controller - Proportional Controller - C49UR
- Shop: Front Mount Hitch
- Q&A: Clearance Between Axle and Spring of Timbren Suspension Enhancement System for 2006 Toyota Sequoia
- Video: Timbren Rear Suspension Enhancement Test Course
- Shop: Trailer Hitch
- Video: Curt Spectrum Trailer Brake Controller Installation - 2020 Chevrolet Colorado
- Article: How to Measure for Trailer Hitch Drop
- Shop: Towing Mirrors
- Video: K Source Dual Lens Universal Towing Mirrors Review
- Q&A: Can Curt Echo Mobile Brake Controller # C51180 Install Upside Down
- Video: Choosing the Right Brake Controller
- Q&A: 2022 Lexus GX 460 Highest Capacity Trailer Hitch Recommendation
on Accessories and Parts
