Low beam relay
Jess from VA:
Quote from: WintrSol on February 18, 2025, 08:19:07 PM
If you have the shop manual, look at page 1-33. If not, I can make a printscreen image and post it as a jpg.
On it, you will see a number of 4P relays, including High Beam and Low Beam; swap those two.
Also, compare to the parts diagram to see which they are, #17 or #18.
I do have the shop manual out in bike shed. No need to jpg it for me (but thanks).
I'll go out and get it, and take another look at this later.
It's hard to understand what a "suspension relay" could be for. Suspension isn't electrical, but they gave that name to electrical parts. Honda makes great bikes, but some of their printed materials/part names are downright inscrutable. But you're saying the low beam relay might be an #18 (not a #17)?
I've been on this forum a long time, and cannot remember ever reading about anyone else having a headlight electrical relay problem. My ace mechanic cautioned me about running 80/100 bulbs (which I got him to install), along the lines of "it'll probably be OK, but there could be something happen." So I suppose the higher bulbs draw could have fried the low beam relay. But only after running both bikes around 18 months, and only on one (the higher mileage one 112K). And I never ride at night (anymore); the extra light was only to be seen, not see.
A relay problem is only my best guess. If that's it (or even if it's not), I should probably stick 55/60s back in both bikes anyway. I have good new ones out in my shed.
Pluggy:
Quote from: Jess from VA on February 19, 2025, 04:53:41 AM
So I suppose the higher bulbs draw could have fried the low beam relay.
Jess, if the relay failed, that's lucky and easy. Those super bulbs require (about) twice the current of the stock 45W items. A connector in the wiring harness may have failed due to the extra current passing through it. A technician would use a multimeter to trace the circuit back towards the battery to find where the 12V disappears. If a connector needs replaced, it is useful to have experience.
Hopefully a new relay is the fix. Then you can put those 45W bulbs back in your bike.
Jess from VA:
Quote from: Pluggy on February 19, 2025, 07:36:07 AM
Quote from: Jess from VA on February 19, 2025, 04:53:41 AM
So I suppose the higher bulbs draw could have fried the low beam relay.
Jess, if the relay failed, that's lucky and easy. Those super bulbs require (about) twice the current of the stock 45W items. A connector in the wiring harness may have failed due to the extra current passing through it. A technician would use a multimeter to trace the circuit back towards the battery to find where the 12V disappears. If a connector needs replaced, it is useful to have experience.
Hopefully a new relay is the fix. Then you can put those 45W bulbs back in your bike.
Thanks for the advice Pluggy.
I don't think 55/60s present any worry, but believe the 80/100s need to go.
I just wish (and was really hoping) someone on here would know the correct part number for the low beam relay. So I could try to fix it myself.
But if I do have any kind of wiring/harness issue beyond a plug and play relay, it will have to go to my mechanic.
Pluggy:
Suspension, Relay is the black rubber part the connects the frame to the relay. it is not an electrical part.
Pluggy:
Quote from: Pluggy on February 19, 2025, 08:14:46 AM
Suspension, Relay is the black rubber part the connects the frame to the relay. it is not an electrical part.
Go to Amazon and look for 38501-GN2-014. This is used on many Honda models. It appears to be the only relay part number for your bike, except the flasher. If I needed one, it could arrive in one day.
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