Cant Find Trailer Connector Tow Package Relay Harness Connector on 2020 Nissan Frontier
Updated 04/08/2021 | Published 04/07/2021
Products Featured in This Question
Question:
I attempted to install this wiring harness on my 2020 frontier pro-4x. I was able to connect the wire in the rear that connects to the trailer but there is no 12 pin connection for the relay. I looked under the kick plate on the passengers side and there is no connection. Could these relays be factory installed?
asked by: Adam
Expert Reply:
I suppose it's possible that the relays in question had been factory installed, but it's unlikely.
If the relays were already in place, the 4-pole trailer connector would have been installed as well. Curt confirms the compatibility of the # C56225 harness/relay kit on the 2020 Frontier so compatibility isn't the problem. I'd recommend using a circuit tester like # PTW2993 to test the pins on the 4-pole connector provided by the # C56225. If the pins show signal as each taillight function is activated then the relays are indeed already in place, and you'll be good to go.
A more likely scenario is that the connector for the relay harness is present behind the passenger kick panel as shown in the linked video but is hidden. Since 2021 is the last year of the current generation of Nissan Frontier truck, it's extremely unlikely that Nissan would change the relay connector location in the 2nd to last model year of the truck. We have received feedback from customers that have told us that the connector you're looking for was wrapped up in a thin foam sheet or tucked behind other wiring components making it difficult to find, but I've never heard of the connector being found elsewhere. If the wiring behind the kick panel is wrapped in tape, gently remove the tape, as it might be covering the connector as well.
If after further looking you still cannot find the connector, let me know and I'll have one of my friends in the Tech Services department at Curt look a little deeper to see if they have any record of the connector being found somewhere else on the vehicle.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Visible
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: part 126
- Video: Trailer Wiring Harness Installation - 2017 Nissan Frontier
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Q&A: Troubleshooting Trailer Running Light Circuit of 2018 Nissan Frontier Not Active
- Q&A: Troubleshooting Trailer Running Light Circuit of 2008 Nissan Xterra Not Functioning
- Q&A: Trailer Running Lights Not Working on 2012 Nissan Xterra
- Q&A: How to Determine if 2005 Nissan Frontier has Tow Package for Installing Trailer Wiring
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Replacement Wiring Harness for Curt T-Connector Nissan Vehicle Wiring Harness with 4-Way Plug
- Shop: Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: Curt Powered Tail Light Converter Installation - 2023 Kia Telluride
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer hitch
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Video: How to Choose a Trailer Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Trailer Wiring Diagrams
- Search Results: trailer wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: How to Measure for Trailer Hitch Drop
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Search Results: trailer jack
- Shop: Brake Controller
on Custom Fit Vehicle Wiring
