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with all but 7 removed, does the bike start
 

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Discussion Starter #22
The bike starts and runs well, ESA works as normal, screen works as normal, traction control works as normal, computer works as normal, mode selection works as normal, radio works as normal, anti theft alarm works as normal, light inside top case works as normal, central locking works as normal, it is only the light system, hooter and flashers that do not work.
 

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All left hand switch gear, which is from a single 4 amp fuse (i think)
 

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Discussion Starter #24
Correct fuse No4 which incorporates top box light which is working and if I hold the hooter button while switching on it works briefly then it stops and the warning for front and rear light failure illuminates on the instrument cluster.
 

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Discussion Starter #25
Initially I thought this was a left hand handlebar switch failure but that wouldn't explain the 2 volt at the aux sockets, this is a shut down of some sort.
 

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I think that voltage is controlled by CAN bus as is maintained for a short while when bike is turned off (on the aux sockets),, which would still indicate a short to ground, of some cause
 

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Discussion Starter #29
Ran all the scans again same code 800FFE overvoltage and what I find when scanning the Basic module (BCO) with motoscan is that it shows battery voltage as 21volt motor not running only ignition on, but checking the battery volt meter shows 12,4 volts that explains the system shutdown but I don't know why the basic module sees 21 volt.
 

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Not that it will help much > Wiring Diagrams - How the K1600 is wired.
Ran all the scans again same code 800FFE overvoltage and what I find when scanning the Basic module (BCO) with motoscan is that it shows battery voltage as 21volt motor not running only ignition on, but checking the battery volt meter shows 12,4 volts that explains the system shutdown but I don't know why the basic module sees 21 volt.
yes, 21 volt would fool the CAN bus into thinking it has an issue. I know nothing of the motoscan unit, so don't know if that is correct or something else. lots of chargers used to push high currents to desulphate a battery, so would suggest it is a damaged module. Ebay has this >
12 2012 BMW K1600GTL Basic Module 61358534812 OEM LKQ
I don't know if that is what is being refered to or even the correct year for the bike. It might even need coding to the bike by BMW
 

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actually a CAN fault is triggered when the system thinks the current draw is too high, and is fooled by adding resistance to the circuit, what if a wire is melted changing the resistance, could it give a reading outside of normal, I don't know where to start that fault finding though bar pulling the cable that feeds the auxiliary socket, from the loom and hope it is only that part of the loom that has an issue
 

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Discussion Starter #32
Thanks Mole I will try the module first, as I do believe when I connected my Optimate 4 to the socket and cycled the ignition it was in program 1 (non canbus) which will start desulphating battery and this was when the damage occured. Might take a while but I will post the outcome.
 

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so the GS911 shows this > XBCO — HEX Code as a table for the controller, all of which I think you are having problems with, so that should help with identifying the part number
 

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you might want to double check this, I got a part number 61358564560 which seems to xref to RT bikes as well so there maybe a good supply out there if they are actually interchangeable, might be worth a phone call to a good dealer
 

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Discussion Starter #36
Thanks Mole part number is 6135-8-546-815 pic attached of module from my bike. The problem I have now is that the BMW manual clearly states do not use module from another bike for testing purposes. pic attached, does this mean no second hand parts.
 

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I think they mean don't use another similar looking part. As it is a basic module which should be compatible with the same module number from a similar bike. If it functions then having the bike updated should bring it all into line. That part number says to me from looking at Ebay that is is suspension related ESA unit. I'd try and narrow down with an online parts fische
 

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Discussion Starter #38
61358552908
Basic module
From: 11/18/2013 To: 04/14/2014 (ENDED) Weight: 0.191 kg Price:
Superseded by:
61358553790 (03/03/2014 — 01/18/2018) , Exchangeable retrospectively 61358554935 (08/01/2014 — 03/18/2015) , Exchangeable retrospectively 61358561773 (03/01/2015 — 09/21/2015) , Exchangeable retrospectively 61358564560 (08/01/2015 — 02/15/2018) , Exchangeable retrospectively 61358566459 (03/01/2016 — ) , Exchangeable retrospectively

Supersedes:
61358548752 (11/04/2013 — 01/15/2014) , Exchangeable retrospectively 61358546815 (02/13/2013 — 09/20/2013) , Exchangeable retrospectively 61358543175 (08/01/2012 — 11/03/2017) , Exchangeable retrospectively 61358534812 (03/12/2012 — 11/03/2017) , Exchangeable retrospectively 61358533701 (08/01/2011 — 10/25/2012) , Exchangeable retrospectively 61357701573 (01/03/2011 — 03/19/2012) , Exchangeable retrospectively 61358522228 (07/01/2010 — 03/16/2011)


Part 61358564560 was found on diagram: Basic module
 

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The only obvious thing I can think of is they changed the LED High beam surrounds to operate differently so I don't believe that is interchangeable
 
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