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Old Aug 9th 2019, 02:21 PM   #11
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Originally Posted by rja4z3 View Post
I hadn’t heard of this. Was the gear teach procedure developed because of symptoms we’re experiencing?
This is true for the 1299 and can be performed by the rider via dash options, but for the V4 it is not possible. I've had the exact same issue several times and lost all functionality during a race weekend. Basically the Gear Position sensor is prone to failure. It is mounted directly to the cases and seems it is unable to handle the heat generated on the motor.

You can't just replace the GP sensor, because you need to re-learn the gears by going through a very specific procedure AND on top of it all the V4 needs the Ducati Diagnostic System computer to perform the procedure... Unlike the 1299.

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Old Aug 10th 2019, 07:07 AM   #12
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From Bai Mityo:

Quote:
Quote:
Originally Posted by airjawed View Post
The 1299 has a gear teach procedure and likely the same in the V4. I believe in the procedure you need the engine casing to achieve a certain temperature. I found a forum thread showing the procedure but for the 1299:

Gear Teach procedure
Thank you for this, airjawed. I have done the gear teach procedure, but I am not sure if I did it with the engine warmed up enough. The dealership definitely has not heard of this. I will try it and post feedback.

Quote:
Originally Posted by rja4z3 View Post
What model bike was your friend's with the spacers?
Hello, rja4z3. I am not 100% sure, but I will get this information and post it for reference when people keep searching for this.
Also, you having the same issue is somewhat soothing for me - that means that I am not the only one and there might be something from Ducati after all.

I was wondering - did you take it to the dealership? If so - what did they say?

I will keep the topic alive - hopefully with a solution.
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Old Aug 10th 2019, 09:44 AM   #13
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Originally Posted by MotoX183 View Post
This is true for the 1299 and can be performed by the rider via dash options, but for the V4 it is not possible. I've had the exact same issue several times and lost all functionality during a race weekend. Basically the Gear Position sensor is prone to failure. It is mounted directly to the cases and seems it is unable to handle the heat generated on the motor.

You can't just replace the GP sensor, because you need to re-learn the gears by going through a very specific procedure AND on top of it all the V4 needs the Ducati Diagnostic System computer to perform the procedure... Unlike the 1299.

Sent from my H1A1000 using Tapatalk
On the 11,1299 as long as it flash "C" on the gears you are able to do the re-learn procedure. BUT if it doesnt,then the same procedure as with the v4,you must connect it with the diagnostic instrument.
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Old Aug 11th 2019, 10:21 PM   #14
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Since it only happens under extreme heat (haven't heard of any non-track users having this issue), I wonder if a phenolic spacer (or other heat isolator) might help. I mention phenolic because if it's truly a Hall's Effect sensor, you'd want something non-magnetic, as I believe most phenolic gaskets/sheets are. Thoughts?

Edit: Spacer part number is 85244491A and the best description I found was "Ducati 4X8X0,2 DIN 998 A2 INOX WASHER". INOX is stainless steel, which in this case isn't magnetic, but isn't going to help with the heat either. Perhaps 1 spacer of stainless and one phenolic (or other non-magnetic heat insulator) might help.

San

Last edited by oldmansan; Aug 11th 2019 at 10:51 PM. Reason: More information
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Old Aug 12th 2019, 05:46 AM   #15
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My mechanic said Ducati has updated the gear sensor b/c of this issue, but the part is on backorder. Has anyone else heard this?
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Old Aug 12th 2019, 05:46 PM   #16
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Originally Posted by rja4z3 View Post
My mechanic said Ducati has updated the gear sensor b/c of this issue, but the part is on backorder. Has anyone else heard this?
OP has posted the newest part number, unless you have something newer.

San
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Old Aug 13th 2019, 05:16 PM   #17
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Originally Posted by Steveo View Post
I’ve just had the same issues on my V4S,
Was out for a ride and the Side stand sensor went to shit, lost drive and wouldn’t drive in gear again as it thought the side stand was down when it wasn’t....
Next I know when it was sitting in the garage, I turned ignition on and the gear indicator on the dash has gone to shit and just showed ‘-‘
As above these sensors are on the 5v loop so maybe related issues?
Bike is currently at the dealer.

Hey mate if you look carefully you might well find that the tiny magnet that is normally glued into the side stand fell out. That happened to me. I think there's a service bulletin item on this. I was lucky to find the magnet ! The side stand switch won't work without it - I would have been marooned in the middle of nowhere.

You can just sticky tape a magnet either to the stand or (better) to the switch temporarily to fix this. Later, I used 5 minute araldite to glue it back in - couldn't be bothered going to the dealer to have them do exactly the same
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Old Aug 20th 2019, 11:12 AM   #18
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Any update from the people experiencing the gear dashes and warning lights? I had the issue and my mechanic replaced the gear sensor with the newest model that is supposed to be updated. Doing my first track day post-mechanic on Sunday. Will post as to whether or not I survive the day without issue.
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Old Aug 21st 2019, 01:20 AM   #19
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Originally Posted by rja4z3 View Post
Any update from the people experiencing the gear dashes and warning lights? I had the issue and my mechanic replaced the gear sensor with the newest model that is supposed to be updated. Doing my first track day post-mechanic on Sunday. Will post as to whether or not I survive the day without issue.
Hello rja4z3,

We ordered the new sensor from Ducati too. Could you please write after the track-day to say if all went well?

Since it is the middle of the summer and Ducati Europe seems to be on a summer break, we had nothing to do while waiting but to dig into the issue. We made some measurements with the failed sensor that we have. This is the video:

https://www.youtube.com/watch?v=WrVVznq9MSE

In this video we are showing the possible problem and solution: the sensor is experiencing extreme heat due to the nature of track-riding. The sensor should withstand 125 degrees Celsius as per the specification. However, our failed sensor is experiencing failure at around 70 degrees Celsius.
We measured the signal from the sensor (the yellow wire) when the sensor is cold and when the sensor reaches and exceeds 70 degrees Celsius. Then we reinstalled the sensor on the bike and did the same test. When we cool the sensor down, the gear position indication returns.
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Old Aug 21st 2019, 02:16 AM   #20
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Originally Posted by Bai Mityo View Post
Hello rja4z3,

We ordered the new sensor from Ducati too. Could you please write after the track-day to say if all went well?

Since it is the middle of the summer and Ducati Europe seems to be on a summer break, we had nothing to do while waiting but to dig into the issue. We made some measurements with the failed sensor that we have. This is the video:

https://www.youtube.com/watch?v=WrVVznq9MSE

In this video we are showing the possible problem and solution: the sensor is experiencing extreme heat due to the nature of track-riding. The sensor should withstand 125 degrees Celsius as per the specification. However, our failed sensor is experiencing failure at around 70 degrees Celsius.
We measured the signal from the sensor (the yellow wire) when the sensor is cold and when the sensor reaches and exceeds 70 degrees Celsius. Then we reinstalled the sensor on the bike and did the same test. When we cool the sensor down, the gear position indication returns.
Any attempt to use a phenolic spacer (or 2) instead of the stainless steel spacers?

San
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