Find your eBike error code
Error codes are specific to each drive system — a Bosch 503 and a Bafang 503 are two different faults. Pick your bike brand or drive system below, then enter the code on your display.
Don't know which drive system your bike uses?
The model name printed on your display pinpoints the system — compare it here:
Bosch
- Performance Line CX Purion 400, Intuvia, Kiox, Nyon, SmartphoneGrip, SmartphoneHub
- Performance Line CX Race Purion, Intuvia, Kiox, Nyon, System Controller with Mini Remote
- Performance Line SX Kiox 300, Kiox 400C, Kiox 500, Intuvia 100, SmartphoneGrip Vertical, System Controller with Mini Remote
- Performance Line PX Kiox 500
- Performance Line Speed Kiox 300, Kiox 500, Purion 200, Intuvia 100, LED Remote, SmartphoneGrip, System Controller & Mini Remote
Shimano
- EP8 EW-SS300, EW-SS301, EW-SS302
- EP5 EW-SS300, EW-SS301, EW-SS302
- E5000 / E5100 SC-E5000
- E6100 SC-E6100
Bafang
- M620 DPC-18
- M410 / M420 / M430 C010, C020, C030.CA-eMTB, C030.CA-eRoad, C080.CB, C11, C220, C221, C230, C231, C240, C241, C244-C245, C262, C263, C270, C271, E160, E161, E162&E163, E170, E171, E180-E181
- M820 DP C030.CA, DP C245, DP C263, DP E181, DP E171, DP E163
- H300 C010, C020, C080.CB, C11, C220, C221, C230, C231, C240, C241, C244, C245, C262, C263, C271, E160, E161, E162, E163, E170, E171, E180, E181
- H700 DP E171
Prefer browsing? See the bike brands we cover — each hub shows which drive system your model most likely uses.
How it works
1. Point us at your system
Pick your bike brand — or your drive system maker and model — so we know whose code chart to use.
2. Enter the code
Type the number or letter-number combo showing on your display. Live matches appear as you type.
3. Follow the checks
Every guide gives ranked causes, pass/fail checks, and a clear line for when to stop and see a workshop.
Every guide is reviewed by our editorial team and re-verified against current manufacturer documentation — see our editorial policy.
Questions riders ask
Where do I find the error code?
It appears on your display when the system detects a fault — usually a number, a letter-number combo (like E010), or a flashing pattern. Note it down exactly as shown, including any letters or dashes.
Why do I have to pick my system first?
Code numbers repeat between manufacturers — a 503 on one system means something completely different on another. Telling us your bike brand or drive system is how we point you at the one guide that actually matches your hardware.
My bike brand isn't listed — now what?
No problem: switch to the drive-system tab and pick the maker of your motor or display instead. If you don't know either, run the diagnose tool or tell us your bike — we add brands regularly.
Is this official manufacturer documentation?
No — RideNovo is an independent publication. Our guides are written and verified by our editorial team against current manufacturer documentation, but we're not affiliated with any brand, and warranty or repair requests always go through the manufacturer.