Hi all, new to the forum and new to e-bikes but been biking for many years. So I bought the 2023 Urrun as it had the EP801 (albeit the RS version) which is compatible with the new Di2 XT auto shift drive train or so I thought. I purchased all the components as an upgrade which included the SW-M8150-R (right shifter switch) and the RD-M8150-11 (derailleur).
I then turned on the bike and I get an E903 error which means "An abnormality due to different settings, etc. between units was detected".
Does this mean this will simply not work with the Urrun or can something be done at a Shimano service centre to get it to work? It's all supposed to be compatible according to Shimano.
Any help greatly appreciated.
Thanks
Jonathan Guy
Hi Jon_boy,
Can you give us an update on your situation?
I got the same bike / same situation. XT Di2 is installed. Error code e903 is shown.
How did you manage to configure the electical gear shifting functionality in the end?
I left my bike at 2 different shimano certified dealers, the 2nd one also being an orbea dealer. They really don't know what they are doing so I guess I have to take measures in my own hand.
Greetings from Germany
Lunatik