LT Alarm Fuse Blown - BMW Luxury Touring Community
 
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post #1 of 5 Old Nov 21st, 2016, 6:38 pm Thread Starter
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Exclamation LT Alarm Fuse Blown

My boxes wouldn't unlock after my bike sat this summer. I got the boxes unlocked but the fuse is blown so I don't have a horn or brake lights. I'm guessing it's my alarm but I'm not sure. I was told they are prone to failure. Can anyone tell me how to wire around the alarm. I've pulled the top box already. I'd just as soon take a beating as mess with electrical problems. Thanks.

2006 R1200RT
2005 K1200LT Ocean Blue
2003 K1200LTE Black
Totaled Oct 2, 2010
2006 Kawasaki Vulcan 2000
Most of us would rather be ruined by praise than saved by criticism.
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post #2 of 5 Old Nov 21st, 2016, 8:40 pm
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Re: LT Alarm Fuse Blown

Pretty easy to bypass the alarm. If the fuse is blowing the internal battery in the alarm has failed with no way to repair it.

First pull the 12 pin connector and the three pin connector (that one is the one blowing the fuse).

To get the bike running again you need to jumper the following pins on the 12 pin connector. Pin 3 (black/white/yellow) to pin 11 (black/yellow); this is the starter button signal to the starter relay.

Then jumper pin 10 (green/violet, switched power) to both pin 2 (Green, flasher module) and pin 6 (blue/violet, engine electronics relay). Now the bike will start and run normally and your flashers will work.

Note you may want to just cut off the 12 pin connector from the alarm harness and do the jumpering on it as a plugin unit. That way it is very easy to reverse if you ever want to replace the alarm unit and have it function again.

As far as the side cases you can find the two of the small two pin connectors (there are three and the third one is for the top case) and apply 12 volts to them to operate the unlock solenoid. But in the mean time the 45 degree trick on the key will open the side cases.
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John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #3 of 5 Old Nov 22nd, 2016, 1:55 pm
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Re: LT Alarm Fuse Blown

There is some more interesting information here.

http://www.bmwlt.com/forums/k1200lt/...mobilizer.html
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post #4 of 5 Old Nov 22nd, 2016, 6:31 pm Thread Starter
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Re: LT Alarm Fuse Blown

I got it fixed. I removed the alarm and wired it back like you said jzeiler. The color code was different so I just went by the numbers and it worked out. Never could get the oddment box to unlock. I guess I'll remove the lock the next time I pull the Tupperware. Thanks for the help.

2006 R1200RT
2005 K1200LT Ocean Blue
2003 K1200LTE Black
Totaled Oct 2, 2010
2006 Kawasaki Vulcan 2000
Most of us would rather be ruined by praise than saved by criticism.
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post #5 of 5 Old Nov 22nd, 2016, 7:20 pm
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Re: LT Alarm Fuse Blown

The oddiments box is on the 12 pin connector. Pin 1 (Brown) and 12 (Red/White). Treat those just like the 2 pin connectors. Yes the colors are for the bike side of the harness as the colors are different on the alarm side of the connector.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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