Intermittent power to accessory socket

[ampthill]

Is anyone also having the problem and better still got a solution?

I have my GPS and Autocom wired into the back of the accessory socket. Up until recently this has worked fine. However recently I have been losing power to these internittently whilst out riding. Suddenly the power will go off, only to sometimes return a minute or two later - most annoying as I then can't use the intercom and power to the gps disappears. I thought it might be the wire connections to the back of the socket but have checked these and even resoldered them and these are fine. All other connections also appear fine and I can only conclude that power to the accessory socket is being disrupted for some reason.

I'm tempted to install a relay to get a switched power source direct from the battery, but there appears to be a lack of suitable wires on the GS1200 from which to make a connection.

Any ideas?

Thanks.

Peter

 

[ianm00]

Is anyone also having the problem and better still got a solution?

I have my GPS and Autocom wired into the back of the accessory socket. Up until recently this has worked fine. However recently I have been losing power to these internittently whilst out riding. Suddenly the power will go off, only to sometimes return a minute or two later - most annoying as I then can't use the intercom and power to the gps disappears. I thought it might be the wire connections to the back of the socket but have checked these and even resoldered them and these are fine. All other connections also appear fine and I can only conclude that power to the accessory socket is being disrupted for some reason.

I'm tempted to install a relay to get a switched power source direct from the battery, but there appears to be a lack of suitable wires on the GS1200 from which to make a connection.

Any ideas?

Thanks.

Peter

Yes see here

Still having problems. Reduce chance by making sure everything is turned off when turning bike on/off. Wait until red battery sign goes out and rev bike while switching on accessories. Once they are on correctly I find all is fine until the bike is next started again.

Ian

 

[ampthill]

Yes see here

Ok, thanks for the link - looks like the problem is well documented with no solution as yet

In that case think I'll connect up a circuit from the battery (with fuse) via a relay. Only problem seems to be the lack of suitable switched live feeds into which to splice a connection. I note that some suggest taking relay power from the diagnostic socket, but others suggest that this is not such a good idea.

This being the case think I'll take up some plastic and splice into the tail light circuit. Anyone already tried this or have constructive comments to add?

Peter

 

[Mouse]

I agree with Ianm00's suggestions, minimise load on the bike when starting and then give it some revs to boost the voltage.

I would be careful about wiring into the tail light, this has caused problems on earlier bikes, I have heard.

 

[ampthill]

I would be careful about wiring into the tail light, this has caused problems on earlier bikes, I have heard.

Any idea what these 'problems' were? I know that Autocom recommends that their units are not conected into the brake light circuit of BMW's with ABS, but instead suggests that these are linked into the tail light. It just seems to me that the adition of a 70mA load to the tail light circuit - which is what a relay needs to power - is rather inconsequential in comparision to the load drawn by the tail light itself ~400mA. But maybe I'm missing something?

Peter

 

[ianm00]

Any idea what these 'problems' were? I know that Autocom recommends that their units are not conected into the brake light circuit of BMW's with ABS, but instead suggests that these are linked into the tail light. It just seems to me that the adition of a 70mA load to the tail light circuit - which is what a relay needs to power - is rather inconsequential in comparision to the load drawn by the tail light itself ~400mA. But maybe I'm missing something?

Peter

Why not return the Bike to a BMW dealer and insist that they fix the bike. If everybody just works around this problem BMW will never sort it.

Ian

 

[wilbjr21]

You can always wire into the front parking light without any problems; then you have a ignition switched feed for the relay. If you look on the USA Toutatech site there is a pdf instruction file in English for their TPS 15 device (which is basically a relay).

 

[Mouse]

Any idea what these 'problems' were? I know that Autocom recommends that their units are not conected into the brake light circuit of BMW's with ABS, but instead suggests that these are linked into the tail light.

Yes I think you're right actually. I typed that earlier comment in a hurry this morning, and I think I was misremembering. Wiring into the brake light is bad, using the tail light circuit is probably OK

Alternatively you could use the sidelight as someone else suggested, which may in fact be the same circuit, I am not sure.