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#Post#: 794--------------------------------------------------
Fault code 12
By: sparklie Date: June 23, 2019, 1:57 pm
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Hi anyone,
I have had a fault code 12 come up on my dash, a mechanic said
it could be a corroded plug giving an incorrect reading. I have
found one under the seat, does anyone know of another or another
reason for this fault other then a faulty sensor or crank in the
wrong position. The bike was working fine until I went start it
for the third time that day.
#Post#: 795--------------------------------------------------
Re: Fault code 12
By: Tartofraiz Date: June 26, 2019, 3:04 am
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[quote author=sparklie link=topic=129.msg794#msg794
date=1561316271]
Hi anyone,
I have had a fault code 12 come up on my dash, a mechanic said
it could be a corroded plug giving an incorrect reading. I have
found one under the seat, does anyone know of another or another
reason for this fault other then a faulty sensor or crank in the
wrong position. The bike was working fine until I went start it
for the third time that day.
[/quote]
It should be a faulty crank position sensor, but it's misleading
because I have never seen it happen. If you want to be sure,
just check :
Unplug the big ECU connector
Measure resistance between pin 3 on the first row (from the
right) and pin 7 on the second row (from the right)
Target value : 300 ohm +/-20%
[img width=300
height=225]
HTML http://i1255.photobucket.com/albums/hh627/tartofraiz/P1010781BIS_zpsztwlzlv0.jpg[/img]
[img width=300
height=225]
HTML http://i1255.photobucket.com/albums/hh627/tartofraiz/P1010782BIS_zpsfmhsoivp.jpg[/img]
Most common causes :
Faulty relay
Faulty starter motor (loose magnet(s) and/or worn brushes)
If it's the starter motor you may want to salvage it as they are
pricey ::)
Edit : you may also want to try something that some other people
did : put the bike in 2nd gear and push it (the best you can).
It sort of "resets" things. This trick obviously doesn't work if
you have a real problem (relay or starter motor).
#Post#: 806--------------------------------------------------
Re: Fault code 12
By: Nikk Date: July 3, 2019, 1:07 am
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Jules, you’re the new Otto (old joke...)
#Post#: 807--------------------------------------------------
Re: Fault code 12
By: Tartofraiz Date: July 3, 2019, 1:44 am
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[quote author=Nikk link=topic=129.msg806#msg806 date=1562134057]
Jules, you’re the new Otto (old joke...)
[/quote]
I wouldn't compare myself to Otto ... [emoji1]
#Post#: 808--------------------------------------------------
Re: Fault code 12
By: sparklie Date: July 3, 2019, 3:00 pm
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Thanks for the reply.
I have taken out the starter motor and connected it briefly to
the battery and it still didn't turn so it looks like I am going
to have to sort this out first. After taking it apart it all
looks fine, no funny smells, the brushes are worn but it all
looks un damaged.
#Post#: 809--------------------------------------------------
Re: Fault code 12
By: Tartofraiz Date: July 4, 2019, 4:19 am
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If I were you I'd check the magnets too. Some might come off as
they are generally not very well glued.
Get some epoxy glue and glue back the ones that come off. Be
careful not to damage the magnets when you try to pull them off.
Glue back one magnet at a time and of course put them back
exactly in the same position ...
#Post#: 814--------------------------------------------------
Re: Fault code 12
By: gorilla Date: July 5, 2019, 9:32 am
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Been there done it in the end new starter :(
#Post#: 828--------------------------------------------------
Re: Fault code 12
By: sparklie Date: July 17, 2019, 4:44 pm
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ok, I have fitted the new starter and still no joy, I can run
the bike by shorting the starter solenoid. The crankshaft sensor
has 294ohnms, so that looks ok.
What's next, anyone got any ideas?
#Post#: 829--------------------------------------------------
Re: Fault code 12
By: Tartofraiz Date: July 18, 2019, 5:57 am
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[quote author=sparklie link=topic=129.msg828#msg828
date=1563399873]
ok, I have fitted the new starter and still no joy, I can run
the bike by shorting the starter solenoid. The crankshaft sensor
has 294ohnms, so that looks ok.
What's next, anyone got any ideas?
[/quote]
Starter relay ?
#Post#: 833--------------------------------------------------
Re: Fault code 12
By: sparklie Date: July 21, 2019, 1:31 am
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Thanks Jules, you were right, the solenoid was clicking but not
making the connection to send the supply to the starter motor.
Speaking to a local mechanic, he thinks the starter motor
probably burn't out due to the relay fault. If I could find out
how to post a picture I would include the contacts inside the
relay, one side was brass coloured the other showing signs of
heat damage. I went out on the MT after fitting the new one, I
love this bike, I don't think i'll ever get another (unless it's
an MT01), mine has a full akrapovic system which really adds to
the ride. What a beast!!
Steve
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