She done died...

Apr 2013
754
12
uk
Further to my last post, fuse four is also a signal wire for the starter solenoid, which is why your starter wouldn't turn, the starter circuit is protected via a 30amp fuse inside the solenoid.

There is a control unit body connector (47 on the electrical drawing) pin 69 R/BK wire that goes from the control unit to the starter solenoid.
(Red with black trace) same wire on the lambda sensors.

Might be worth checking this connector for water ingress/corrosion or just poor connection.

I've been trying to find out what AB_AVVIA relates too?? i've no idea, but the rest of the wires are signal wires for starting the bike, can high and low wires,
Clutch switch, side stand switch, fuel pressure, oil pressure etc.
I'd deffo look at this connector, It will be the smaller of the two going to the main bike ecu

Hope this helps

Mentalist
 

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Mar 2013
2,339
4
Naples, IT
Thanks, Bro. Everything helps at this point. My starter is only about 6 months old and the leads going to the unit were cleaned. Haven't touched the ECU side but I feel there's some sensing/ sending issue as I can feel it's running just a little rough. Alas, I ride it like it's stolen every day (that it's actually running) and it needs a valve/ cam job. I'm not sure what a desmo bike needing a valve job feels like.
 
Apr 2013
754
12
uk
Dammit, I rag the arse of my bike every ride, do trackdays with it. its done 25k miles so far, valves were in spec at 18k so next big one at 36 they will be checked again.

Right this AB_AVVIA has been bugging the life out of me, so translated the Italian for it.

Its a start signal, initiate, start up, switch on.

So were in the right area what I have covered.Question is why? the fuse blew that will more than likely be the culprit or a broken wire on that circuit.
Fingers x'd its not the ecu
 
Mar 2013
2,339
4
Naples, IT
She Lives!

Cleaned all the leads, slapped the charged battery in, and she fired right up. Still have the previous CEL/ ERRORS after it turns over but, it runs fine. That #4 fuse blowing must have clipped her vagi-cles. It must have been that crazy full lock u-turn like Bown mentioned.

Plug a bunch of 10A fuses in those spare slots, fellas...
 
Apr 2013
754
12
uk
Nice one, glad its running ok. Id be turning the steering lock to lock trying to replicate the fault so you can get it fixed. Dont want it cutting out mid corner. Unless it was a bad connection and youve fixed it cleaning the leads. Get it plugged into a ducati diagnostics laptop. Half hour labour charge to see what the cel code is. Lamda sensor main suspect
 
Mar 2013
2,339
4
Naples, IT
Yup. She's 500 miles from 18K mile service. I burn 150 miles a week. I just have to contend with Ver Augusto, which is Italian for: "we kinda don't work in August". A double crime as it's the best time to drive here. The traffic was so light last year I turned an average 18 minute ride into 10.

Fotoguzzi has me freaking out about the belts. Alessandra just turned 6 and it would be par to have a belt snap after all the shit I've been dealing with.
 
Jun 2019
34
0
Florida
I don't want to freak anyone out and I'm by far no expert, my guy just pointed out they showed wear. On the outside there was printing that totally wore the lettering off.





 
Oct 2016
369
1
San Francisco
If something caused a fuse to blow during a full lock turn you may have a short in the harness. Mine shorted out right where the harness attaches the frame. It's ziptied from the factory and that causes sharp bends in the harness that cause problems over time.
 
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