12 V Socket (accessory plug) not working?

triangletom

Active member
I plugged in a brand new Warm N Safe jacket into the 12 V socket accessory port, and it doesn't seem to be working. Is it possible that I blew a fuse somewhere? I looked at the riders manual which lists the fuses, but none of them mentioned the 12 V socket. As I've never used the jacket, it's possible that the problem lies in the controller rather than the socket, but before I attempt to wire it directly to the battery, I figured I should ask if there was an easy reset of the 12V socket first.
 

wspollack

Active member
I plugged in a brand new Warm N Safe jacket into the 12 V socket accessory port, and it doesn't seem to be working. Is it possible that I blew a fuse somewhere? I looked at the riders manual which lists the fuses, but none of them mentioned the 12 V socket. As I've never used the jacket, it's possible that the problem lies in the controller rather than the socket, but before I attempt to wire it directly to the battery, I figured I should ask if there was an easy reset of the 12V socket first.
C 400 GT owner here -- not CE-04 -- but I think it's likely that you blew a fuse.

It's been my experience over the years that most heated liners draw from 7 - 10 amps, so you're probably pretty close to the max fuse values, especially considering whatever else that circuit was powering at the time. I'm basing this on motorcycle OEM fuses and wiring in general, and my GT in terms of recent Beemers. That is, my '22 GT owner's manual lists fuse values at 4A or 7.5A (except for the main 30A fuse); if the CE-04 is like that, you're over one size of fuse and, at best, mighty close to the other. (I also find that manual deficient, in that it doesn't list all the stock circuits, in terms of what fuse goes to what circuit. For instance, the USB ports in the cubby are not listed.)

So there's that.

Most fuses have two tiny openings for a pointy probe in the back side of them, so you can stick the probe from a voltmeter or a test light (with the other lead or clip properly grounded) in those tiny backside holes. That is, you can test fuses pretty easily, without even removing them. You'll have to check the owner's manual, of course, if you don't know where the fuses are.

So I'd go with a direct hookup to a battery, using, say, 14- or 16-gauge wire and a 15-amp fuse on the hot side.

And I prefer BMW/DIN/Hella/Powerlet outlets, compared to SAE or coax connectors. On two Burgman 650s and one Victory bagger, I located this outlet under my left thigh, as I think that's the best place (given that liner hookups are almost always at the bottom of the left side). Here's the sub-gallery I did regarding this mod for the Vic community back then:


And then, a few weeks after I got my new GT this past June, I did the exact same thing to that, as shown in this particular pic/caption in my gallery:


Good luck tracking down your problem.
 

Bob66

Member
I plugged in a brand new Warm N Safe jacket into the 12 V socket accessory port, and it doesn't seem to be working. Is it possible that I blew a fuse somewhere? I looked at the riders manual which lists the fuses, but none of them mentioned the 12 V socket. As I've never used the jacket, it's possible that the problem lies in the controller rather than the socket, but before I attempt to wire it directly to the battery, I figured I should ask if there was an easy reset of the 12V socket first.
It sounds like your jacket requires more current from the CAN-BUS system than the limit set in the controller unit for the socket. From previous experience with BMWs there is no reset so if you plug something in which draws a current below the set limit then it should still work. Its annoying. The 12V socket on my R1200R and my CE 04 will not power my Airman tyre inflator. I hardwired a DIN socket to the battery in my R1200R but out of concern for the size of the 12 V battery in the CE 04 I didn't bother. My CE 04 can however power my Gerbing heated gloves through the 12 V socket which is handy.
 

triangletom

Active member
Looking now at the tech specs, the jacket is rated at 7.7 Amps, so yeah, I probably exceeded the current limits. I ended up plugging directly into the battery terminal to ride today and the jacket worked fine. I don't have anything else that plugs into the accessory outlet, so I'm not sure if I blew a fuse yet or not, but I may have to play around with a voltmeter to find out. It didn't seem to impact anything else.
 

Bob66

Member
I’d be interested to know if you’ve blown a fuse. As I understand it, the CAN BUS system should prevent enough current being drawn to blow the fuse. I guess the total current from all the loads sharing the same fuse could exceed the fuse rating under some circumstances. My Airman Tour compressor is rated at 10A. I connected it to the 12V socket to my R1200R several years ago and my CE 04 recently. It wouldn’t run on either bike but no fuses were blown in either case. My heated gloves work with the CE 04, they draw 2.2A max.
 

Low On Cash

Active member
There’s a pretty good chance if you try the 12 volt port again it will be working. It has either a resettable breaker or Canbus just turns it off if you exceed around 4 amps. The port does not go to the fuse block.I plugged an air pump 5 amps and it shut down but comes back up on a restart. To remedy the prob I ran a fused connector direct to the battery. Make certain to only draw on the line don’t attempt to charge the battery thru that connector since it can damage the down converter which charges the battery even when the ignition is off. I installed a SAE connector so I can plug in either heated stuff air pump, etc.

Mike
 

Low On Cash

Active member
f1.jpg Hello all - I'm sure heated clothing is going to make this a problem -while we already covered it if the draw exceeds the max draw amperage it will trip the circuit and open the connection until you re-start.

I had the same problem you'll have to open the panel and wire a fused SAE connector direct to the battery terminals. Make sure you don't charge the battery thru these same connectors since it may damage the high voltage 400-14 volt DC to DC charger. You should not ever need to charge the battery but if you do you should disconnect one of the battery leads to isolate the charger from the bikes electronics.

Just a note - with this cold weather use caution charging the bike as it can cause plating in the high voltage battery. If possible bring the bike indoors before riding and for charging.

Stay Warm - Mike

f2.jpg
 

pedalmike

New member
Tom: The accessory socket will not take more than 5 amps. Your 7.7 amp draw jacket caused the CANBUS to take the socket offline. If you try again with a vest or gloves that use 5 amps or less, I'll bet it will work.
 
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