Is Hopkins Tow Bar Wiring Harness HM56200 Considered a 4 or 6 Diode System

Updated 04/11/2017 | Published 04/09/2017

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Roadmaster Brake-Lite Relay Kit for Towed Vehicles

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Question:

Is this Hopkins wiring harness a 4 diode or 6 diode system?

asked by: William C

Expert Reply:

Technically Hopkins wiring harness # HM56200 is a 4-diode system but it uses a converter box instead of separate diodes. So if you are looking at supplemental braking systems you are going to need to use the brake light relay # RM-88400 to prevent the towed vehicle's brake signal from overriding the turn signal from the RV when applying the brakes during a turn.

expert reply by: Michael H