Wiring A Trailer For Separate Brake And Turn Signals
Updated 01/16/2024 | Published 01/15/2024
Products Featured in This Question
Question:
Do not understand why and where I need the extra 2 diodes.... I am trying to convert a trailer to separate turn and brake lights 4 prong flat plug
asked by: Scott B
Expert Reply:
The Tail Light Isolating Diode System with Wiring Harness # 38955 you were looking at is for towed vehicles so I misinterpreted your question and recommended the additional diodes. If you were just wanting to wire your trailer for separate lighting then you'll just need a converter # C56196 and you'll splice it in after the 7-way/junction box on the trailer.
On the 7-Way wiring, locate the wire for the left turn and brake and attach it to the yellow wire on the converter input side. Connect the wire from right turn and stop to the green wire input side. Ground the white wire to the trailer frame.
On the output side that will go to the trailer lights, you will have the yellow wire, which will now be left turn only, the green wire for right turn only, and a red wire for brake lights only. The running light wires will remain separate.
Product Page this Question was Asked From
Hopkins 4-Diode Universal Wiring Kit for Towed Vehicles - 4-Way Flat Connector
- Flat Tow Wiring Harness
- Splices into Vehicle Wiring
- Diode Kit
- Universal Fit
- 4 Flat
- Hopkins
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on Flat Tow Wiring Harness
