Troubleshooting Passenger Side Turn Signals/Brake Lights That Don't Work After Installing Diode Kit
Published 07/25/2023
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Question:
Hello, I recently had a diode, link of part listed below, installed for my 2022 Jeep Wrangler. When I hooked up the RV and did a safety check the driver brake light and turn signal worked fine. However, the passenger taillight turn signal and brake light did not work. However, when I put on the emergency flashers on the RV both taillights worked/flashed. I have attached a picture of the passenger connection. I am thinking either its not wired correctly near the tailight or maybe the Flexo-Coil cord needs to be replaced. Please help! Thank you!
asked by: Matt H
Expert Reply:
After checking out our install video on a 2021 Jeep Wrangler the only thing it seems to me like it could be is the wires on your passenger side may be incorrectly hooked up.
The easiest way to check this is to remove the OEM wiring from the diode and check the functions of your taillight with a circuit tester # PTW2993. You are going to need to replace the spade connectors with # RM-300115-00 since you'll need to cut off the existing ones to crimp the wires.
If the wiring is correct, then the issue is going to be with the diode itself. Since you said it was recently installed I'd then reach out to Roadmaster and have them replace it since their part was faulty.
But in all honesty, I'd take your car back to whoever installed this kit and let them know what's going on. If you installed it yourself then you can proceed with checking the wiring, but if not I would 100 percent take it back.
(click to enlarge)
Product Page this Question was Asked From
Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 4-Way Flat Connectors
- Flat Tow Wiring Harness
- Splices into Vehicle Wiring
- Diode Kit
- Universal Fit
- 4 Flat
- Roadmaster
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on Flat Tow Wiring Harness
