Testing Tail Light Wires on a 2001 Ford Crown Victoria to Install a Trailer Wiring Harness
Updated 03/31/2016 | Published 03/29/2016 >
Products Featured in This Question
Question:
i installed part no. c59236 on my 2001 crown victoria. i have blinkers and tail lights but no brake lights. tried hooking red to red but didnt help. any suggestions?
asked by: Robert G
Expert Reply:
When installing a hardwire trailer wiring harness such as # C59236 you have to test the vehicle tail light wires to determine their functions using a circuit tester such as # PTW2993.
Testing the wires is required because there is no standard wire color and function code. Your 2001 Ford Crown Vic has separate turn signal wires from the brake light wires. The yellow wire on the harness goes to the left turn signal wire on the vehicle. The green wire is for the vehicle right turn signal wire.
The brown wire will connect to a vehicle tail/running light wire. And the red wire will connect to a brake light wire on the vehicle. Be sure that the white ground wire is attached to a clean, bare metal surface. That just leaves the power wire that connects to the battery.
Once you have identified the right wires on the vehicle the rest of the installation will be easy.
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
- Hidden
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Search Results: hitch pin
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Q&A: How to Wire Trailer Wiring Harness on a 2005 Ford Crown Victoria
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: trailer wiring
- Article: Trailer Wiring Diagrams
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Suspension Enhancement
- Video: Curt Powered Tail Light Converter Installation - 2023 Kia Telluride
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer hitch ball mount
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Article: How to Choose the Right Trailer Hitch Class
- Shop: Brake Controller
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Comparing the Curt Hitch C13416 and EcoHitch Hitch 306-X7396 for a 2019 Toyota RAV4
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Video: Clean Up Your Trailer Wiring
- Search Results: trailer tires and wheels
- Video: How to Choose a Trailer Brake Controller
- Q&A: Clearance Differences Between Hitches For A 2026 Honda Odyssey EX-L


