C01
What code C01 means on a Bafang electric bike, what causes it, and which part to check first.
● SEVERITY: MEDIUM
Bafang C01 means: Throttle error (voltage out of range). The documented cause is: Check that the throttle isn't stuck in a fixed position. Reset.
What C01 means
Throttle error (voltage out of range)
The display shows C01 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by bikedoctor.dk
| DOCUMENTED CAUSE OR CHECK |
|---|
| Check that the throttle isn't stuck in a fixed position |
Replacement parts
Tools you'll need
Worth repairing, or worth replacing?
The battery: how long it lasts, when to replace it, what it costs
Before you open anything
Switch the system off and remove the battery before opening any connector. A traction battery stores enough energy to melt a tool and start a fire, and a damaged cell can ignite hours later. Never charge a swollen, dented or wet battery, and never leave one charging unattended.
What to check, in order
From the quickest check to the one that needs a technician.
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Frequently asked questions
What does C01 mean on a Bafang?
Throttle error (voltage out of range) The documented cause is: Check that the throttle isn't stuck in a fixed position. Reset.
Can I fix C01 myself?
It depends on the part involved: Check that the throttle isn't stuck in a fixed position. Reset. Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Can I keep riding with this code showing?
Yes: we document 13 other codes for Bafang on this electric bikes. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.