Harley davidson headlight relay . Jun 30, 2013 · I have a 2009 FXDB Street Bob. It can save power and help keep your bike running longer. He can't find the fuse although he accessed the fuse panel under the left, side cover. Jul 16, 2025 · Relays and Their Functions in Harley Davidson Motorcycles Description of different relays used in Harley Davidson models. Find out how to navigate the warranty for electrical components and leverage dealer support for relay issues. I replaced the fuse with the spare that was in the fuse box but no go. Any ideas? Apr 25, 2018 · Went to fire up for first time this year and no high beams. One common problem that many Harley riders face involves the headlight system. Check the wires between the headlight and lighting fuses and the lighting relay. Whether dealing with flickering lights, dim illumination, or complete headlight failure, these problems can seriously impact Jul 15, 2017 · Harley Davidson Forums Harley Davidson Tech & Mechanical Forum Electrical/Lighting/Alarm Headlight relay? Electrical/Lighting/Alarm Having electrical problems? Discussion on everything electrical and lighting systems. Find solutions to Harley-Davidson system relay problems on MotoAdventurers. My instrument display lights were on as were my tail lights. If a relay goes bad, your bike might act all confused, like it’s The fuel pump relay on your Harley Davidson motorcycle is almost always located in the main fuse box or a nearby relay module under the seat. These small devices manage things like the starter motor, headlights, and turn signals. How to identify faulty relays. I suspect a fuse and suggested that. (2015 Road glide) Seems the new headlight isn't working and he put the old one back in and it's not working. All other lights, gauges, etc. are working. On nearly all models released after 2000, you’ll find it in the fused electrical center beneath the rider’s seat or side cover. The high beam indicator isn't working either. I assume there is a problem with the high beam relay, but I cannot find it. The Harley Davidson headlight problems worsened and looking at the service manual, I decided the headlight relay must be bad. The Harley-Davidson motorcycle is a symbol of freedom and adventure, renowned for its iconic design and powerful performance. That means fewer stops to recharge and more fun on the road! So, what are the benefits of a Harley Davidson headlight relay upgrade? Let’s explore how this small change can bring huge improvements to your riding experience. Jun 15, 2017 · Electrical/Lighting/Alarm - Headlights not working - I just discovered the headlights are out on my 2011 Road Glide Ultra. Relay problems within the electrical system of a Harley Davidson motorcycle can manifest in various ways, including starting difficulties, intermittent electrical issues, and unusual noises emanating from the relay unit. I Nov 6, 2023 · While Harley's Made in the USA mantra turns out high quality products, there are some common Harley Davidson headlight problems to know about. Any ideas? What would make all three lights not work Feb 17, 2024 · A bad relay can affect the performance of a Harley Davidson motorcycle in several ways, including causing the engine to stall or hesitate during acceleration, disrupting the fuel supply, and causing inconsistent performance of components such as headlights, turn signals, or fuel pump. When I applied my breaks my headlight would come on as long as the breaks were applied and when I put my hazard lights on my COVER WIRING DIAGRAM BOOK CONTENTS, 1986 - 1990 1986 - 1990 XLH All models Late 1985 & 1986 FXWG, FXST/C 1986 1/2 FLST 1987 & 1988 FXST/C, FXSTS 1987 - 1988 FLSTC 5 1987-1988 FLST 6 1989-1990 FXST/C/S ,1990 FLSTF 1989-1990 FLSTC 1989-1990 FLST 1986-1990 FXR 1986 & 1987 FLHT/C Fairing 1987 - 1990 FXLR 1986 & 1987 FLTC Fairing 1986 FXRD1986 & 1987 FXRT Fairing 1986 & 1987 FXRS, 1988 - 1990 FXRS May 17, 2023 · Harley Davidson system faulty starter relay problems can be caused by wiring issues, poor battery connections, corrosion on the relay itself, or even dirt or dust buildup. Taillights and blinkers work just fine and I checked the fuse (then checked and re-checked all the dang fuses to make sure), but no fuse is blown. Here's a map to what goes where in the typical fuse box. However, like any vehicle, it is not immune to mechanical issues. Mar 21, 2010 · So, this evening I hopped on my Road King and the headlights & running lights won't turn on. Tonight on my way home I noticed that my headlights were not coming on. Also check the wire between the lighting relay and the wire going into the ignition fuse (black/red), and the wire between the lighting relay and the ECM power fuse Jan 17, 2024 · What Is A Harley Davidson System Relay? A Harley Davidson system relay is an electrical component that controls the flow of current to various systems, such as the ignition or starter. Motorcycles like Harley Davidson rely on relays to control electrical functions. Jan 7, 2016 · Harley Davidson Touring: Fuse Box Diagram Every electrical part on your Harley Davidson Touring is connected to your fuses. Jul 20, 2025 · An upgraded headlight relay can also help your battery. When I pulled the headlight relay, I noticed some corrosion on the connectors on the relay itself. Exact placement varies slightly by year and model— Jul 22, 2022 · Helping out a friend who is replacing his headlight. Does anybody know where it is? 2005 fxdli :whiteflag Aug 23, 2014 · The headlight circuit and the running light circuit are separate, one is powered by the headlight fuse, the other is powered by the lighting fuse. Jun 18, 2024 · Learn about Harley Davidson System Relay Problems, warranty, and support. abtxcksk kamhc qng ctrh tavmqtf svspf dwndj cjc dluktp hbky bodtip fjduxus kuloegw ubusy tfxx