Sat Nav connector not shutting down?

[st247]

Been having a problem of late with the battery going flat after a couple of days. Decided today to have a look at the qpac (wired to the front accessory wiring by the headstock), which i found to be ok.

After refitting that i decided to try it with the quest in place. If i leave the quest on the bike and turn off the ignition, the canbus shuts down the power to the Quest after about a minute, and the pins read 0v. If i remove the quest and repeat the test, the front socket does not power down and reads 5v forever more.

So before i go to the trouble of rewiring elsewhere has anyone had this issue and what was the outcome?

 

[TeaPig]

I think you will find that although the measuring the voltage gives a reading of 5v, there's actually no significant current . The power distribution system usues electronics rather than relays and in the 'off' state there may well still be a small voltage measurable by a high impedence voltmeter. When you connect your GPS the power it tries to draw form the 'off' system pulls the voltage down to zero.

I may be wrong, but that's my guess and unless you have anything connected directly to the battery, it's likely the battery is the real culprit as it's past it's best

 

[st247]

Thanks for the reply. The Battery is brand new (there's nothing connected to it), and the problem only exists with the qpac connected, if i disconnect it from the connector at the headstock then there's no problem.

I can only assume that the current draw from the transformer is not enough to shut the circuit down but is enough to drain the battery after a couple of days.

Just wondered if anyone else had had the issue.

 

[Engineer]

Very Interesting - I have had similar issues with my battery going flat and the only common factor I can think of is that it happens when I have the Quest cradle in place - I have not totally convinced myself of this yet but have my suspicions.

When this started to happen a year or more ago - I eventually had the battery replaced by the dealer, even though all their tests said it was a 100% good battery.

Everything was fine up until my recent trip to France, I had carefully tested the satnav cradle at work to see what the quiescent current was (empty cradle) it was not measurable on my Fluke 175 multimeter, so must have been less than about 1/100th of a milli-amp.

So I plugged the cradle back into the socket under the seat and off I went - there were no problems at all - the trouble started when I returned. I removed the Quest from the cradle and put the bike in the garage,turned it off and locked it - the cradle was still plugged into the accessory socket.

Six days later my battery is flat!!!

I had the same set-up on mt 2005 GS with no issues at all. I think that there is something about my new bike (2010) that under certain circumstances when the Quest cradle (only) is plugged in, the ECU doesn't totally shut down when the ignition is turned off.

I suspect the battery flattens becuse of ECU drain - NOT drain from the accessory socket Somehow the Quest cradle is doing something that causes the ECU to stay on.

More experiments needed!!

 

[gsman1]

Flat Battery

Has same issue with zumo 660 turned out to be autocom unit which stayed live if sat nav not in cradle to power down canbus system.Apparantly had isues with latest autocom, fix was a relay of some type supplied by autocom I think,which cut out, when ignition switched off, problem solved for me from then on.

Very Interesting - I have had similar issues with my battery going flat and the only common factor I can think of is that it happens when I have the Quest cradle in place - I have not totally convinced myself of this yet but have my suspicions.

When this started to happen a year or more ago - I eventually had the battery replaced by the dealer, even though all their tests said it was a 100% good battery.

Everything was fine up until my recent trip to France, I had carefully tested the satnav cradle at work to see what the quiescent current was (empty cradle) it was not measurable on my Fluke 175 multimeter, so must have been less than about 1/100th of a milli-amp.

So I plugged the cradle back into the socket under the seat and off I went - there were no problems at all - the trouble started when I returned. I removed the Quest from the cradle and put the bike in the garage,turned it off and locked it - the cradle was still plugged into the accessory socket.

Six days later my battery is flat!!!

I had the same set-up on mt 2005 GS with no issues at all. I think that there is something about my new bike (2010) that under certain circumstances when the Quest cradle (only) is plugged in, the ECU doesn't totally shut down when the ignition is turned off.

I suspect the battery flattens becuse of ECU drain - NOT drain from the accessory socket Somehow the Quest cradle is doing something that causes the ECU to stay on.

More experiments needed!!