General topics » Blinking Yellow Light on 12v Accessory Plug

I looked into my dark garage tonight and saw a yellow blinking light coming from near my RS's exhaust. I traced it to the 12v accessory port (on a wire, zip-tied to the frame). I have never looked closely at that port, but it has three button-like lenses on it. One of the lenses was flashing a yellow light. I watched it for about 30 seconds, and it stopped. I've looked in the owners manual, but I can't find any mention of it.

Does anyone know what this means?

An accessory port with 3 lenses on it near the exhaust? Not on my bike.

The standard accessory port should be within the bodywork of the bike, just below the pillion seat (quite high up) on the exhaust side of the bike. Yours sounds like an aftermarket one that's been installed, and is possible taking a few seconds to switch off (when the lights stop flashing).
The OEM one powers down after about 7 secs (controlled by the ECU/canbus)

A couple of interesting things. I bought the bike brand new, so it is definitely not after market. Also, I saw in the manual that there should be a socket in the body work below the rear seat, but mine does not have that. My bike was a very late 18 model, so maybe they made a minor change? I will post some pictures after the sun comes up.

Zitat von wessie im Beitrag #4

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did you buy the bike used? Has someone fitted one of those battery monitor devices? I think they have 3 LEDs to indicate the battery state but I would expect them to remain illuminated all of the time. Of course, if the device has been tapped into the accessory socket wiring then this is only live with the canbus.

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Zitat von BusBoy11 im Beitrag #5

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A couple of interesting things. I bought the bike brand new, so it is definitely not after market. Also, I saw in the manual that there should be a socket in the body work below the rear seat, but mine does not have that.

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IMG_6106[1].JPG - Bild entfernt (keine Rechte)

This is a picture of my standard socket with a plug installed in it. I hope this helps.

Coincidentally I found mine yesterday. I had been looking under the saddle. I thought the manual gave that impression but when I looked again it did not. I wanted to be sure that I had one before getting an Optimate 4 with Din plug and pre-set to Can-Bus. It is on the right hand side under a circular bottle-top type cover.

Chris

Yes, I do indeed have the factory socket. I just have never noticed it there before, and have had no need to look for it. I saw it today in the daylight when I went to photograph the plug I had desribed. Having seen both now, I am thinking that the one all-time to my frame may be a dealer installed option, possibly for a battery tender. I'll trace it when I get a few minutes.

Just flip your screen over and the pics will make more sense 😕

Zitat von BusBoy11 im Beitrag #10

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Yes, I do indeed have the factory socket. I just have never noticed it there before, and have had no need to look for it. I saw it today in the daylight when I went to photograph the plug I had desribed. Having seen both now, I am thinking that the one all-time to my frame may be a dealer installed option, possibly for a battery tender. I'll trace it when I get a few minutes.

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Good call on the Ctek port. I did an image search and found one that looks very similar. Now I know what I will be rerouting to a far less conspicuous location.

What brand of battery charger do you use? While not cheap, the CTEK chargers are very good.

The only downside I see (and it's small) with your current set-up is the need to get CTEK adapters for heated clothing, etc.......

For what it's worth, I run a CTEK connector and charger - especially easy when the shop leaves the connector on at time of sale. CTEK also makes a BMW-branded charger/maintainer, so I suspect there's some price incentive for the dealers.

(I bought a CANbus-compatible Optimate 4, but didn't like it as much, so it maintains the battery on my Honda generator and serves as a spare should the CTEK die.)