How Many Circuits are Supported by the Optronics 7 Pole to 5 Pole Flat Wired Adapter # A57WB
Updated 01/05/2015 | Published 01/03/2015
Question:
Hooked it up to my truck and trailer and the back up lights come on all the time. the current broken one I have does not do that . also this is sold as a 7 pole into 5 flat pole , my old one has all 7 connectors there yours only has 5 on the pole end that is meant to be 7.
asked by: Peter A
Expert Reply:
Thank you for your recent purchases from etrailer.
The Optronics 7 Pole to 5 Pole Flat Wired Adapter # A57WB that you purchased is intended to allow a tow vehicle with an RV-style 7-way blade type trailer socket to connect to a trailer that uses a 5-pole flat type connector. The linked article on trailer wiring shows these and other connector types commonly in use.
The 5th wire on a typical 5-pole trailer is usually blue in color and is there to carry signals for electric trailer brakes. It is possible that your trailer is wired differently and this could be the reason for your trailer reverse lights coming on. It could also be that there is corrosion within the trailer's connector that is causing two different circuits to be bridged together. Check the trailer connector that plugs into the adapter's 5-pole side; look for any corrosion or discoloration and clean as needed.
The 7-pole plug on the Optronics adapter does only have 5 contacts installed. This is intentional since the 5-pole flat connector can support only 4 circuits plus the ground.
Product Page this Question was Asked From
Adapter 7 Pole to 5 Pole Flat Wired Adapter
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 7 Blade to 5 Flat
- Plug and Lead
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Towing Mirrors
- Q&A: Towing Mirror For 2014 Chevrolet Silverado 1500
- Shop: Brake Controller
- Q&A: Recommendations For 7-Way to 5-Way Trailer Wire Adapters
- Q&A: Adapting 5 Pole Trailer Connector to 7-Way Connector on Truck
- Q&A: Compatibility of Boat Trailer with Electric Brakes With 7-Way Extension Adapter
- Q&A: Will Trailer Connector Provided With Stealth Hitch SH25VR Release Surge Brakes On Boat Trailer
- Search Results: ks3891
- Search Results: fits passenger side towing mirrors
- Search Results: trailering mirrors
- Shop: 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs
- Shop: 7-Way Round RV Style Trailer Connector - Trailer Side
- Shop: Curt Trailer Connector Adapter - 7-Way RV Style to 5-Way Flat - 96" Cord
- Shop: CIPA Custom Towing Mirror - Slip On - Passenger Side
- Shop: K-Source Universal Towing Mirrors - Clip On - Convex Mirror - Qty 2
- Shop: CIPA Custom Towing Mirrors - Slip On - Driver Side and Passenger Side
- Shop: Adapter 7 Pole to 5 Pole Flat Wired Adapter
- Video: Install: CIPA Custom Towing Mirrors on a 2021 Chevrolet Silverado 1500
- Video: How to Set Up Your CIPA Custom Towing Mirrors on a 2020 Chevrolet Silverado 1500
- Video: Setting up the K-Source Snap & Zap Custom Towing Mirrors on a 2024 Chevrolet Silverado 1500
- Video: Setting up the K-Source Universal Towing Mirror on your 2019 Chevrolet Silverado 1500
- Video: Set up: Longview Custom Towing Mirrors on a 2023 Chevrolet Silverado 1500
- Video: A Closer Look at the CIPA Custom Towing Mirrors
- Video: Checking Out the Adapter 7 Pole to 5 Pole Flat Wired Adapter
- Q&A: Will the K Source Universal Clip-On Towing Mirror Fit a 2007 Toyota FJ Cruiser
- Article: Trailer Wiring Diagrams
- Q&A: Can Redarc Tow Pro Liberty Brake Controller Install 2012 Toyota Sienna LE
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
on Custom Fit Vehicle Wiring
