Shimano ep801 - e201 error

[ottoshape]

Bike is generating e201 error. After powering on, the display works fine and power select button works properly. Spin the crank and the error is displayed.

I've cleaned all wire ports, reseated and cleaned the main battery connection several times. Found a utoob blurb about adding an assist pad to the motor wire cover to make sure the main power cable remains firmly seated. Did that and no luck. Still same behavior.

Thoughts from the collective?

 

[TwoWheeln]

Bike is generating e201 error. After powering on, the display works fine and power select button works properly. Spin the crank and the error is displayed.

I've cleaned all wire ports, reseated and cleaned the main battery connection several times. Found a utoob blurb about adding an assist pad to the motor wire cover to make sure the main power cable remains firmly seated. Did that and no luck. Still same behavior.

Thoughts from the collective?

I'm not 100% sure but I think the motor will throw this code if there is pressure on the pedals when you turn it on.

 

[ottoshape]

I'm not 100% sure but I think the motor will throw this code if there is pressure on the pedals when you turn it on.

Bike will power up fine. Display and assist level button works as designed. Error pops when you start pedaling under assist.

 

[ottoshape]

 

[TwoWheeln]

I would call ARI and send them the error log.

 

[ottoshape]

I would call ARI and send them the error log.

Already have a ticket open...

 

[dan_ep82]

you need a pc to get the rest of the code, ive just had a new motor from shimano for this fault but the full code was
E201291 - An abnormality was detected in the sensor detecting motor rotation inside the drive unit.

 

[ottoshape]

Got the message over to Aribikes. Shimano has a new motor on the way to them and then they'll send it to me.

It is looking like a short 3 day effort to collect info and get to bike dealer, have them work with Shimano and get a new motor heading my way. Not too shabby, way to go aribikes.com!

Link to e-tube pro software:

https://bike.shimano.com/en-UK/products/apps/e-tube-project-professional.html

 

[ottoshape]

New motor installed last Friday, Easy-ish R&R. Took a short test ride and then 14 miles in the woods on Saturday. No new codes, issues or surprises from the motor. Surprise did pop up from the tools required for the chainring nut. Read a report here the LRT-5 tool works to R&R the nut but turns out it was not deep enough. If you have an end mill you can take off enough material to make it work but I don't have one of those. I did find a hole saw created a deep enough groove that was wide enough to accept the crankshaft. Other than the hour or so figuring out how to make the tool work, this should be a 2 hour job the second time around. Hopefully there is no second time....