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post #1 of 19 (permalink) Old Jun 27th, 2019, 4:24 pm Thread Starter
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CEL Help

Last ditch effort because I ship my 2011 SFS to the dealer.

Iíve been dealing with this issue for the past month or so, the check engine light come on and off randomly when I turn the key on, and it would stay on most of the time after I start the bike. 15-20 min into a ride my dash would blink and I would get the error code CAN 38.0, but the bike runs fine. I would turn the bike off and back on and it repeats the same cycle.

I was told it could be a battery issue so I changed the rectifier/regulator and got a new battery, same thing is still happening. Checked all the wire connections and nothing looks out of place....

Any suggestions or ideas would be greatly appreciated.
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post #2 of 19 (permalink) Old Jun 27th, 2019, 4:33 pm
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Originally Posted by kte43 View Post
Last ditch effort because I ship my 2011 SFS to the dealer.

Iíve been dealing with this issue for the past month or so, the check engine light come on and off randomly when I turn the key on, and it would stay on most of the time after I start the bike. 15-20 min into a ride my dash would blink and I would get the error code CAN 38.0, but the bike runs fine. I would turn the bike off and back on and it repeats the same cycle.

I was told it could be a battery issue so I changed the rectifier/regulator and got a new battery, same thing is still happening. Checked all the wire connections and nothing looks out of place....

Any suggestions or ideas would be greatly appreciated.

38.0 can is a can-bus communications line error. All of the electronics on this bike run on the canbus system so it could be anything from a corroded plug to a broken wire or heck it might even be a burned out bulb. I wish I could tell you how to chase down the problem. Maybe someone else can chime in on this one? Secret Squirrel?

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post #3 of 19 (permalink) Old Jun 27th, 2019, 8:07 pm
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That's exactly how I'd go about sourcing the problem. If it's a can bus issue first trace any modified wiring that's been done. A tail tidy or even aftermarket turn signals can cause a problem if there's any poor wiring connections. Pinched wires can also cause odd problems. These bikes are delicate when it comes to the can/bus system.


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post #4 of 19 (permalink) Old Jun 27th, 2019, 9:22 pm
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Also check this thread where some wires rub bare.
https://www.ducati.ms/forums/138-str...ring-loom.html

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post #5 of 19 (permalink) Old Jun 28th, 2019, 11:00 am
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check the ECU ground, it was recall on early models. It should be directly behind the fuel tank if I remember correctly.
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post #6 of 19 (permalink) Old Jun 28th, 2019, 1:07 pm Thread Starter
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Would I have to lift the tank to get to it?
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post #7 of 19 (permalink) Old Jun 28th, 2019, 1:48 pm
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If I remember correctly the ECU ground is further back in the subframe. You shouldn't have to lift the tank.


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post #8 of 19 (permalink) Old Jun 28th, 2019, 11:29 pm
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Quote:
Originally Posted by kte43 View Post
Last ditch effort because I ship my 2011 SFS to the dealer.

Don't give up dude

Canbus is no mystery it's just a network over 2 wire between ecu, dtc and dash.

Behind dash it's pin 5 and 12 i would trace these.

Pay attention behind the headlight where the wires moves, good place for a short. The 3 places in the tail i highlighted in the referenced thread could be a good place to look too.

If cabling look good try to unplug dtc module and try the bike.

If you can borrow an ecu and put a map with immobilizer disabled it could be a good test too.

If everything is perfect, this will point to the dash.

But seeing it's part time, my guess is the wiring harness.

I don't know why some say the electrics are special, it's like any bike and will give you trouble if you pinched a wire somewhere, or one rubbed to ground. No you won't have any error for a burnt bulb. A pinched wire will quickly worn it's insulation, and loose wiring too.
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Last edited by Ricko; Jun 29th, 2019 at 12:50 am.
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post #9 of 19 (permalink) Old Jun 29th, 2019, 7:57 am
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Quote:
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Don't give up dude

Canbus is no mystery it's just a network over 2 wire between ecu, dtc and dash.

Behind dash it's pin 5 and 12 i would trace these.

Pay attention behind the headlight where the wires moves, good place for a short. The 3 places in the tail i highlighted in the referenced thread could be a good place to look too.

If cabling look good try to unplug dtc module and try the bike.

If you can borrow an ecu and put a map with immobilizer disabled it could be a good test too.

If everything is perfect, this will point to the dash.

But seeing it's part time, my guess is the wiring harness.

I don't know why some say the electrics are special, it's like any bike and will give you trouble if you pinched a wire somewhere, or one rubbed to ground. No you won't have any error for a burnt bulb. A pinched wire will quickly worn it's insulation, and loose wiring too.

Ricko is right and sorry about the bulb thing I was over exaggerating

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post #10 of 19 (permalink) Old Jun 29th, 2019, 9:06 am Thread Starter
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Ricko is right and sorry about the bulb thing I was over exaggerating
I did read somewhere that aftermarket turn signals were the cause for the CAN for a couple of people...

Iíve pretty much taken the whole bike apart and will go through every wire. Thanks for the advice everyone.
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