Which Way Should Diode Point on Highlander for Install of Brake Controller

Updated 06/24/2024 | Published 04/10/2023

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Question:

I need to add a 1 amp diode to my 2018 Toyota Highlander to clear up some errors after installing the Redarc brake controller. I assume the diode arrow goes toward the brake control, but wanted confirmation. Is this correct? Thank you,

asked by: Sandra T

Expert Reply:

Yes you need the diode arrow to point towards the brake controller. That will allow the voltage to travel into the controller but not backfeed back on to the Highlander in any way. If you need a diode we have the part # RM-690.

expert reply by: Jameson C