Troubleshooting Loss Of Tail Light Function After Installing A Diode Kit In A 2023 Ford Bronco
Question:
Why don’t the tail lights illuminate on my 2023 Ford Bronco but the brake and turn signals do but dimmer than normal after installing smart diodes connected to each tail light wire? Small side marker lights illuminate indicating that there is voltage getting to the light. Do I need to install the regular Hy-Power diodes on each separate wire instead of using the smart diodes?
asked by: Jeff A
Helpful Expert Reply:
A 2023 Ford Bronco would only need to use smart diodes if it has variable voltage tail lights. Variable voltage tail lights use the same wire for the brake signal and running lights instead of the standard turn/brake wire setup. To determine if you have variable voltage tail lights you'll need to pull the tail light out to get to the wiring and test wires with a probe tester # PTW2993 in order to see if the same wire powers both the running lights and brakes.
If you do have variable voltage tail lights you'll need part # RM38FR (LED) or # RM26FR (Incandescent). If you don't have variable voltage tail lights you would need to use standard diodes like in part # RM-15267.
Once we know the correct diodes for your Bronco we can then troubleshoot any function loss and get your Bronco flat tow ready.
Products Referenced in This Question
Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Diode Kit
- Universal
- Tail Light Mount
- Roadmaster
more information >
Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Diode Kit
- Universal
- Roadmaster
more information >
Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Diode Kit
- Universal
- Roadmaster
more information >
Product Page this Question was Asked From
Roadmaster Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights
- Tow Bar Wiring
- Bypasses Vehicle Wiring
- Diode Kit
- 27 Foot Long Harness
- Universal
- Tail Light Mount
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Vehicle Tow Bar Wiring
- Shop: Roadmaster Smart Diodes for Variable Voltage LED Tail Lights - Qty 2
- Q&A: How To Determine If Your 2023 Ford Bronco Has Variable Voltage Tail Lights And What Diodes To Use
- Shop: Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights
- Shop: Vehicle Tow Bar Brake System
- Search Results: demco duo
- Shop: Demco Stay-IN-Play Duo Braking System for RVs w/ Hydraulic Brakes - Wireless Monitor - Proportional
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Wire to 6-Wire Straight Cord
- Shop: Roadmaster Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights
- Shop: Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights
- Video: Roadmaster Smart Diode Wiring Kit Installation - 2021 Ford F-150 RO44FR
- Q&A: Parts Needed To Wire Tail Lights Separate From Brake Lights When Flat Towing a 2023 GMC Sierra 1500
- Search Results: 153789
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Q&A: What Flat Tow Wiring Harness Do I Need for a 2023 Ford Bronco Outer Banks w/ LED Lights?
- Video: Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit Installation - 2023 Chevrolet Trailblazer
- Video: Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit Installation - 2022 Chevrolet Equinox
- Video: Roadmaster Universal Diode Wiring Kit Installation - 2022 Jeep Gladiator
- Search Results: smart diode
- Video: Roadmaster Smart Diode Wiring Kit Installation - 2023 Chevrolet Equinox
- Q&A: Troubleshooting Roadmaster Smart Diode Kit Install Where Lights are Dim and Hyperflash
- Search Results: smart diodes
- Search Results: demco adapter
- Article: How to Choose a High-Low Adapter
- Q&A: Recommended Tow Bar Wiring Kit For a 2023 Ford Bronco
- Video: Review of Roadmaster Tow Bar Wiring - Splices into Vehicle Wiring - RO54FR
- Search Results: roadmaster smart diode
- Search Results: base plates
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Choosing the Right Trailer Wiring
on Tow Bar Wiring
