Electronics » R1200RS 2018 Keyless Ign.

Hi,

Looking to see if anyone has had the same issue as I am currently experiencing.

My bike will not start, the dash will initially light up, speedo needle goes half way up, drops back and the dash goes off, 10 seconds after I have started this the dash seems to pre-trip, check properly and lights up but with the key symbol showing.

Now I have renewed the bike battery and the key fob battery just to be on the safe side, I have followed the instructions of placing the key over the 2nd sensor under the seat for recognition but then get a 2nd key warning on the dash with a question mark under it to the left of the first key symbol so both at the same time so its not recognising the key, it also does this for the emergency key when placed over the sensor so I question both keys being at fault and more likely the bike but maybe someone can steer me a little better towards a clearer resolution. tia.

There was a known problem with the ring sensor around the ignition switch with some boxer models some years ago - some GS riders took to carrying a spare. Had not heard of it being an issue of late.

Zitat von andygriff im Beitrag #2

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There was a known problem with the ring sensor around the ignition switch with some boxer models some years ago - some GS riders took to carrying a spare. Had not heard of it being an issue of late.

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I would test both key fob and hard plastic emergency key with that backup 2nd sensor under the pillion seat several times:

1) Will they light the dash and gauges consistently when you press your ignition soft button?
2) Will they then allow you to start the bike each time?

Disregard for now the question mark indicator or other dash fault indicators.

If yes, check into andygriff's suggestion of sensor around the ignition switch.
If no, you might have a 2 sensor problem. Or perhaps something with the ecu's management of ignition security.

That backup under seat sensor not working with either key is concerning.
Weird problem. Hopefully others chime in or you get it worked out.

Also, far flung possibility, your new motorcycle battery could be bad. Bad cell. My OEM battery started going bad in a year and half, and I got strange flickering on then off in dash lights when I pressed the center ignition soft switch, no start with handle grip red thumb switch, then suddenly start normally. A new aftermarket battery has had no such problems.

Is the main battery in good condition and fully charged?
Dips in battery voltage can cause all sorts of strange anomalies.

Alan

Hi Wessie.

No sources of electromagnetic fields etc, just in my garage, no substations nearby and no mods done but thanks.

Hi Alda.

Yes fully charged and as I stated it is a new Yuasa Battery so on balance it should be good and I currently have the old battery on charge so I can test it as a double check to see if it was originally at fault, cheers.

Hi Lee,

Isn't the key symbol on the dash indicative of an EWS issue ?

I know it's a feeble response, but would disconnecting the main battery for a short while restore things?
Seems to work on a multitude of other items these days.

Alan

Zitat von Emptyskilbar im Beitrag #9

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Hi Lee,

Isn't the key symbol on the dash indicative of an EWS issue ?

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Well after exhausting all options I and anyone else could think of I've had my local BMW dealer have a look at my bike and they say its the DME module that has crapped the bed, quite expensive but without it the bike is a heavy skate board and as they rarely have issue with these there are none available in the country so BMW will be shipping one in, I will update once this is in and see if the troublesome RS works again.

So painful as it was to my wallet it seems the issue was the DME unit, no reason for its failure, no anomalies were recorded like flashing due to jump starts etc just a Friday afternoon build unit failing, the bike runs fine now, my local BMW dealer were good so much so that they even gave me some discount on the original quote which was nice of them and they stated that they do not get these units failing to the point there were none available in the UK thus resulting in a small wait whilst it was shipped from Germany. As the saying goes, $%it happens.