Brake Controller Harness for Tekonsha P3 on 2021 BMW X5
Question:
I have a 2021 BMW x5. I also own a tekonsha P3 brake controller. I contacted the tekonsha about the cable to connect the brake controller to the vehicle and they said they do not have an applicable cable. Any suggestions?
asked by: Chris M
Expert Reply:
Tekonsha 20127 works with the P3 # 90195 but there is not currently a plug and play option on your 2021 BMW X5. Installing a brake controller is straight forward and can be done at home. If you don't already have a trailer connector, to install the brake controller you need a 4-way wiring harness converted to a 7-way. Part # C56190KIT allows you to use a 4-way. # ETBC7 which is a universal 7-way. This is the easiest way to do it because the kit includes everything you need to get the brake controller and the 7-way hooked up correctly on your X5.
If you already have a 4-way connector you only need the 7-way, but if you have a 7-way to install a brake controller you need to tap into the brake line wire on your factory connector along with connecting the brake controller to the vehicles stop light switch and battery.
Products Referenced in This Question
Tekonsha Prodigy P3 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
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Product Page this Question was Asked From
Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- Universal Fit
- 4 Flat
- CURT
more information >
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