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 Originally Posted by IdahoMtnSpyder
OK, your .pl address did reject the zip file. Let me know if the .eu one comes through.
Thank you again. This is huge help.
I already see there is a difference in message id between my model 2011 and yours 2014.
What is probably the same: TCM (0x220, 0x222), SAS (0x0C3)
Difference: YRS (mine 0x303, yours I don't know
VCM is sending 0x230, 0x430 and 0x020, but I don't see 0x580 and 0x581 (might be before log started)
Because of difference in YRS sensor data (which is used by ABS) it is possible that moving ABS/VCM unit from newer model to older might require installing newer YRS as well.
ABS, 3xVSS, YRS and SAS are linked together in one system. Probably newer ABS unit will not be able to read old YRS data (0x303).
0x330 - resposible for DPS, always sends same data which means that torque values are in different message.
I've tried to analyze all messages and I came up with 3 different messages (0x122, 0x150, 0x343) and one of them might be DPS torque sensor data.
To indicate precisely which one is from DPS I would need to understand how DPS works. Basically, when DPS motor is turned on and how it feels on steering.
I would expect that DPS will turn the assistance when torque is sensed, and it will try to minimize torque required to steer left or right. This would mean that I will see spike in torque applied, steering angle starts to change
and afterwards torque starts to get lower when DPS assistance is turned on. I don't see that unfortunately.
What I see is that within timespan of 12s steering is moved to right, left, right left and so on.
Data which looks like torque (0x150) changes in first 4s and later is mostly the same.
There is one bit in 0x150 which changes after 0,5s when steering is sensed, and after 2s it is back to old state.
IdahoMtnSpyder - are you able to say when DPS assist is turned on?
It would be interesting to see how my VCM will behave when I will introduce 0x150 in my CAN bus.
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Very Active Member
My nephew has a 2010 RT. I'll see if I can get him to let me record what his machine does. My understanding of the DPS is the amount and timing of the assist depends on what the torque sensor detects for turning torque. That may be tough to measure while the bike is parked and running. It's winter time so I won't be able to record anything while I'm riding until about March or
April.

2014 Copper RTS
Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
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No need to go that far and make further recordings. I already have lots of data to analize.
My question was about how do you "feel" DPS is working and if it works instantly from the start, but I think I know the answer and I should make deeper analysis.
I will get back to this topic later. Now I need to prepare everything for inspection and first registration.
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I don't have cable for glove box, but I have cable for front trunk which will be made by me. So I used front trunk cable for glove box. It is a bit short and needs to be carefully placed under glove box, but it works.
I've had to add proper ending for cable (universal cable end) to keep it in place.
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While I was working on cables I added trunk latch from minicooper (10$) which already has electric actuator.
Again, some modifications needs to be done and universal ending for cable is used to make it work.
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Same problem with belt cover. Broken in half. Welded on both sides, additional weld inside to make part stronger and 100, then 200 grit sandpaper on "visible" surface.
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That looks fantastic already. Well done sir.
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Very Active Member
 Originally Posted by megagame
My question was about how do you "feel" DPS is working and if it works instantly from the start, but I think I know the answer and I should make deeper analysis.
My experience is that about the only time you can tell when DPS is working, is when it is not! The application of assistive torque is so smooth and gradual, and variable, there is no way to detect by feel when and if the DPS is assisting. I'm going to guess that as you go around a curve the torque the rider applies to the handlebar is maybe 30 to 40% of the total turning torque. At the start of a turn the torque is close to zero so the DPS adds zero torque. But as the torque requirement goes up, the amount added by the DPS goes up. When the DPS in my 2013 RT was acting up, and kicking in and out, I could really tell when it kicked in. If I was in a hard turn, like a freeway exit loop, and the DPS wasn't working, and then all of a sudden it did start working, the extra torque I was applying to the handlebar would make me suddenly turn so much I almost went off the road to the inside of the curve. A DPS that kicks in and out can actually be dangerous.
Hope this helps.

2014 Copper RTS
Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
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Thanks. This means it will be hard to determinate precisely algorithm responsible for amount of assist. But, it sure works all the time when torque is applied.
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Active Member
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Very Active Member
RTS 2011 SM5, 78,000 miles

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