Parts Needed to Add 7-Way to 2018 Toyota RAV4 With 4-Way

Updated 05/16/2024 | Published 05/15/2024

Products Featured in This Question

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(672)

$74.12

Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional

(6648)

$167.12

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3398)

$119.84

Question:

Ive a 2018 Rav4 Adventure, and Id like to wire a 7 pin trailer harness with brake controller. I have both a hitch and 4 pin wiring kit from you great products!. Can you provide details on where and how to tap the brake signal for the tekonsa p3 controller? Id appreciate that much! I do understand I need the controller and 7 pin wiring harness, so Ill grab from you, but I need to understand how to work the brake signal tap, Larrie

asked by: Larrie S

Expert Reply:

Hi Larrie,

Really glad to hear you're happy with the products you bought! And we can for sure get you some details on what you need and how to wire the 7-way on your 2018 Toyota RAV4. Since you already have 4-way # 118578, all you need is the 7-way wiring kit and controller:

- Universal Installation Kit for Trailer Brake Controller # ETBC7

- Tekonsha Prodigy P3 Trailer Brake Controller # 90195

The # ETBC7 has the 7-way and wiring needed for the install, and you'll plug the 4-way into the 7-way after making the connections. Regarding the brake light switch, you'll just need to find the wires connected to the brake switch.

The wires will be at the very top and slightly to the left of the brake pedal, and it may help to remove the panel/trim held in by screws to get a better look. There will be a bundle of wires attached to a connector, and you'll need to use a circuit tester to find the wire carrying a signal when the brake pedal is engaged.

It can admittedly be a bit of a pain as it isn't a huge working space, but after finding that wire, just connect it to the red wire coming from the P3 # 90195.