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141001

Bosch eBike 141001: The battery of your control unit is flat.

Verified with sources1 sourceReviewed Aug 23, 2026
Technician coming? See what they must show you
Electric bicycle with mid-drive motor and integrated battery
SängerCC BY-SA 4.0Image source

Risk level

High

Professional inspection is recommended.

Urgency

Immediate

Quick answer

The battery of your control unit is flat. If this occurs repeatedly, it may be necessary to replace the internal battery of the control unit. The following functions of the eBike Flow app are currently unavailable: Install an update on your eBike, activate/deactivate eBike Lock, activate/deactivate Battery Lock, activate/deactivate eBike Alarm, activate/deactivate eBike transport mode, reset key For 141001, Bosch's user step is: Charge the internal battery of the control unit for at least 45…

Safety first

Stop and check this first

  • Stop riding or charging while a battery, drive unit, cable or connector is abnormally hot. Keep it away from combustible material; smoke, swelling, hissing or burning smell requires emergency help.

Safe checks you can perform

  • Preserve the code before changing anything
  • Apply only Bosch's published user step
  • Use recurrence as the stop point

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Measured handoff for 141001

What a technician must be able to justify

A technician is coming

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Measured handoff for 141001

    What they doUse the saved timing, system generation and Bosch diagnostics to test Control unit in the state that produced 141001; verify software, connectors and component values before replacement.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Checks and evidence, step by step

Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. 1

    Preserve the code before changing anything

    No special tools

    Procedure

    Photograph 141001. Record the eBike model, Bosch system generation if known, battery level, Control unit, what stopped working and when the code appeared.

    Stop riding or charging while a battery, drive unit, cable or connector is abnormally hot. Keep it away from combustible material; smoke, swelling, hissing or burning smell requires emergency help.

    Evidence: Bosch eBike Systems — official fault code 141001

  2. 2

    Apply only Bosch's published user step

    No special tools

    Procedure

    Charge the internal battery of the control unit for at least 45 minutes. To do so, connect your eBike either to the charger or to an external power bank. The internal battery is also charged automatically during the journey - take it for a spin. Please ensure that the ambient temperature is between 15 and 35 °C. If the problem persists, please contact your specialist dealer. Record whether the condition “The battery of your control unit is flat.” disappears and whether 141001 reappears after the exact published step. Do not add an undocumented reset or open a component.

    Stop riding or charging while a battery, drive unit, cable or connector is abnormally hot. Keep it away from combustible material; smoke, swelling, hissing or burning smell requires emergency help.

    Evidence: Bosch eBike Systems — official fault code 141001

  3. 3

    Use recurrence as the stop point

    No special tools

    Procedure

    If 141001 remains absent, monitor the same function; that does not prove a repair. If “The battery of your control unit is flat.” or 141001 returns, stop the user checks and book a Bosch eBike specialist.

    Stop riding or charging while a battery, drive unit, cable or connector is abnormally hot. Keep it away from combustible material; smoke, swelling, hissing or burning smell requires emergency help.

    Evidence: Bosch eBike Systems — official fault code 141001

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Electric mobility
Brand
Bosch eBike Systems
Product type
Electric bicycle

Known code variants

  • Bosch 141001 bici elettrica
  • Bosch 141001 bicicleta eléctrica
  • Bosch 141001 E-Bike
  • Bosch 141001 eBike
  • Bosch 141001 vélo électrique
  • Bosch eBike code 141001
  • Bosch eBike error 141001
  • Bosch eBike Fehler 141001
  • Bosch eBike Fehlercode 141001
  • code Bosch eBike 141001
  • codice Bosch eBike 141001
  • código Bosch eBike 141001
  • erreur Bosch eBike 141001
  • error Bosch eBike 141001
  • errore Bosch eBike 141001

What it means

Bosch eBike Systems assigns 141001 to Control unit with source severity WARNING. It reports the detected state, not proof that one particular part has failed. If this occurs repeatedly, it may be necessary to replace the internal battery of the control unit. The following functions of the eBike Flow app are currently unavailable: Install an update on your eBike, activate/deactivate eBike Lock, activate/deactivate Battery Lock, activate/deactivate eBike Alarm, activate/deactivate eBike transport mode, reset key

Warnings and stop conditions

  • Highsource verified

    Stop riding or charging while a battery, drive unit, cable or connector is abnormally hot. Keep it away from combustible material; smoke, swelling, hissing or burning smell requires emergency help.

    Evidence: Bosch eBike Systems — official fault code 141001

Symptoms and causes

Probable causes · in order

  • What the code establishesConfirmed

    Bosch identifies 141001 at Control unit: The battery of your control unit is flat. Keep that meaning scoped to a Bosch eBike system and the exact code shown.

    Evidence: Bosch eBike Systems — official fault code 141001

  • What the official step decidesPossible

    If “The battery of your control unit is flat.” clears after Bosch's exact step, only the current condition has cleared; no failed part has been proved. If 141001 returns, the documented user branch is exhausted and the recurrence becomes the evidence for service.

    Evidence: Bosch eBike Systems — official fault code 141001

Virtual technician

Does 141001 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

  1. 1

    Bosch eBike Systems — official fault code 141001

    Bosch eBike Systems · 2026 · official_doc

Sources: Bosch eBike Systems — official fault code 141001reviewed 2026-08-23 · verified

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