Troubleshooting "Power Loss" Error Message Installing Tekonsha Prodigy P3 on 2019 VW Atlas

Updated 04/05/2023 | Published 04/04/2023

Products Featured in This Question

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

(6643)

$155.79

Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers

(50)

$26.86

Question:

i am attempting to install the p3 on a 2019 VW atlas that has a tow package installed. i keep getting the power loss error message. if i connect directly to an offboard battery and wire directly to the trailer harness, it works properly. once i introduce the VEHICLE GROUND, the error pops up. this error is shown to be on the vehicle power line according to tekonsha. do i have a vehicle wiring problem and should i start on the positive or the ground side?

asked by: Andrew S

Expert Reply:

Yes, it does sound like the issue is on your 2019 Volkswagen Atlas but I do recommend checking your Tekonsha Plug-In Wiring Adapter # TK22FR is wired correctly. This could cause the issue you are getting with the Tekonsha Prodigy P3 # 90195 as well. You can see where the wiring goes into the connectors on the product page. Be sure the terminals are fully seated as well and not pushing out of the connectors. Then you should start with the ground side as that wire will be more easily traced to ensure it is securely attached to a ground source.

expert reply by: Bud M