E1 Error CodeUpdated 6 days ago

Description

The scooter displays an E1 error indicating a fault in the brake sensor circuit. This is most commonly caused by a damaged, pinched, or disconnected brake lever or regenerative (regen) brake sensor wire, often after handlebar adjustments or a fall.

Symptoms

• E1 error shown on the display.
• Brake light flashes continuously or stays on.
• Mechanical brake works, but regen braking may be intermittent or disabled.
• Throttle may be inhibited while the error is active.

Possible Causes

• Brake lever or regen throttle cable pulled, pinched, or sharply bent during adjustment.
• Impact damage from a fall affecting the lever or its connector.
• Internal conductor break at high-flex points (near the lever pivot or cable exit).

Solution

The E1 error is typically cleared by repairing or replacing the brake sensor wiring or component.

• Replace the damaged brake lever or regen unit (recommended first-line fix)
• Perform a careful DIY wire repair if the lever is otherwise intact and you are experienced with electronics
• If multiple cables/components are damaged, replace the entire handlebar assembly

Troubleshooting Steps

• Inspect both brake lever and regen wires from lever to connector; look for kinks, cuts, or exposed conductors.
• Unplug and reseat the lever/regen connector; check for bent pins, moisture, or corrosion and clean if needed.
• Temporarily disconnect one brake sensor at a time and power on; if E1 clears, the disconnected component is faulty.
• If visible wire damage exists, replace the affected lever/regen unit or perform a wire repair.
• If E1 persists after replacements, inspect the handlebar harness for damage and consider replacing the entire assembly.