Ducati Monster Forum

Moto Board => Tech => Topic started by: Bergweiserus on December 01, 2019, 02:30:27 PM

Title: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: Bergweiserus on December 01, 2019, 02:30:27 PM
This is incredibly frustrating...  hoping for some insight.  When I 'key-on' I get no idiot lights, no headlight, no clicking sound, no nothing....

Bike is a 1999 M900 (used to be a M750 before I did a motor swap in '06)

What I've checked so far:

Battery reads 13.3v.
Solenoid plug has been checked - firmly in place.
Getting 13.3v at the wires going to my starting toggle switch (replaced they key with a toggle).
Checked all fuses - they're good.
Unplugged and replugged both plugs going to handlebar controls along with various other plugs.

I am totally scratching my head on this one.....what is REALLY strange is when I had it in the 'key-on' position and was
standing there thinking to my self for a few minutes, the idiot lights came on and i was able to crank it over a couple times
but after clicking it off, now it's back to doing absolutely nothing.

I am wondering if it's my battery; it's a Ballistic 8-cell EVO2 that is about 7 years old and has seen quite a bit of extreme
weather.  BUT, if it's consistently reading 13.3, shouldn't that be enough to power up the headlight and idiot lights at least?

Thanks for any help  :)






Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: greenohawk69 on December 01, 2019, 02:44:14 PM
Year and model of bike
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: Bergweiserus on December 01, 2019, 02:56:31 PM
Quote from: greenohawk69 on December 01, 2019, 02:44:14 PM
Year and model of bike

Woops!   Rookie mistake  [roll] :)

Bike is a 1999 M900 (used to be a M750 before I did a motor swap in '06)
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: ducpainter on December 01, 2019, 02:57:43 PM
Main relay?
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: Bergweiserus on December 01, 2019, 03:02:47 PM
Quote from: ducpainter on December 01, 2019, 02:57:43 PM
Main relay?

I unplugged / replugged just for kicks and nothing.   I'm not sure how to tell if it's good or not.  Can i somehow use my volt-meter or is there another way?
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: koko64 on December 01, 2019, 03:04:58 PM
+1
Check the dash cable connector too.
Any news from the fuse box?
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: koko64 on December 01, 2019, 03:06:26 PM
Quote from: Bergweiserus on December 01, 2019, 03:02:47 PM
I unplugged / replugged just for kicks and nothing.   I'm not sure how to tell if it's good or not.  Can i somehow use my volt-meter or is there another way?

Half expose the pins see if what goes in comes out with your voltmeter.
Pull it out and give it a shake. Any rattle? They are cheap from the auto store. If its an old original Spanish one jyst replace it and buy a spare for the tool kit while you're there.
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: ducpainter on December 01, 2019, 03:08:40 PM
Quote from: Bergweiserus on December 01, 2019, 03:02:47 PM
I unplugged / replugged just for kicks and nothing.   I'm not sure how to tell if it's good or not.  Can i somehow use my volt-meter or is there another way?

howie will be along to confirm, but contact 30 and 87 will bypass it.
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: Bergweiserus on December 01, 2019, 03:21:41 PM
OKAY, i don't care what everyone says - y'alls are geniuses  [laugh]

it worked!  i unplugged the relay (no rattle), plugged it back in and Voila!  Lights and all - fired right up.   I then gave the terminals a short blast of
DeoxIT 5 for good measure.  

Good To Go!   THANK YOU all....  much appreciated.  Electrical stuff is my least favorite type of troubleshooting

[thumbsup] [bow_down] [beer]
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: koko64 on December 01, 2019, 03:36:50 PM
Dont trust it though. Get a couple from the auto shop. Maybe corrosion or loose internal connection.
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: stopintime on December 01, 2019, 03:49:16 PM
Where's Howie?

We can't diagnose and declare an issue 'solved' on our own. It doesn't work that way. It just doesn't  [bang]


[Dolph]
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: koko64 on December 01, 2019, 03:56:22 PM
 ;D True.
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: Bergweiserus on December 01, 2019, 04:05:07 PM
Quote from: koko64 on December 01, 2019, 03:36:50 PM
Dont trust it though. Get a couple from the auto shop. Maybe corrosion or loose internal connection.

Will do, thanks for the help!

Quote from: stopintime on December 01, 2019, 03:49:16 PM
Where's Howie?  We can't diagnose and declare an issue 'solved' on our own. It doesn't work that way. It just doesn't  [bang]
[Dolph]

[laugh] [laugh]

Quote from: ducpainter on December 01, 2019, 02:57:43 PM
Main relay?

Thanks again, homie  :)

Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: ducpainter on December 01, 2019, 04:08:09 PM
Quote from: stopintime on December 01, 2019, 03:49:16 PM
Where's Howie?

We can't diagnose and declare an issue 'solved' on our own. It doesn't work that way. It just doesn't  [bang]


[Dolph]
We're nor worthy. ;D
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: Howie on December 02, 2019, 05:46:13 AM
Seems y'all got along fine without me.  I would get a new relay though.  Cheap enough.

Thanks for the praise, but I can be as dumb as anyone else.  I moved the snow blower from it's summer home (shed) to it's winter home (garage).  I figured I might as well make sure it starts and runs.  Opened gas cap, looked in gas tank. Crank crank crank, no start.  Take sheet metal off to get to the carb.  All good.  Looked in gas tank again, but this time with strainer out.  No gas.  Put gasoline in, VROOM [bang]
Title: Re: Electrical issue: battery at 13.3V, but no idiot lights, no start, no nothing
Post by: koko64 on December 02, 2019, 06:21:51 AM
 ;D