General Category > Engine related issues

Motronic 2.4, 2004 R1100S comms trouble

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HECOJohn:
Aloha,

My GS911 works perfectly on my R1200RT so I know it's working.  I have an R1100S that stopped working and using the GS911 on the connector I get no information.  The GS911 reports trouble communicating and to check battery voltage.  I have charged the battery and tried again.  I can get by that message and do get a proper identification of the Motronic 2.4 bu, no other information.

My question is, is this the kind of message I could expect with a bad ECU?  I'm not asking to troubleshoot the motorcycle just to help me identify a potential comms problem between the ECU and GS911.

Thank you for your time,
John

StephanT:
I've asked John to post this on the forum, as I'm sure between all of us we can help him figure this out...  AND it might just help some other people in the process...

@John:
1. when you have your GS-911 connected to the R1100S, what are the voltage readings in the bottom right hand corner?
 
2. when you do an Autoscan, what information is shown? if anything, pls post an autoscan

3. with the GS-911 plugged into the bike, go to Tools -> Setup -> [Test interface], and post the result

once you get back with the results, I will give  acbrief description of what we can deduce of each...

best
Stephan

Haakon:
I hope this is the start of a GS911 "faultfinding" section?

I am almost sure I would have missed the "bottom right corner" voltage reading :-)

Jughead:
Hi John

Check the small black wire connected to the starter.  This is often a problem on the 1100/1150/1200s.  It is the small spade connector that either corrodes or vibrates loose.  A cautious squeeze with a pliers will close the connector a little and make for a better fit ensuring a better connection.

HECOJohn:
Aloha all,

Thank you Jughead, I will check the spade connector.

I'm traveling and not able to get back to work on the bike now to test these things.   I will report when I have the rest of this answer.

Haakon, this is exactly why I have to go back.  I missed all of this information.

Thank you all,
John

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