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152002

Bosch eBike 152002: The temperature of your control unit is too high.

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 temperature of your control unit is too high. This may significantly reduce the LED brightness of the control unit. For 152002, Bosch's user step is: Let your eBike cool down for ten minutes in a cooler environment. Avoid direct sunlight here. If the same code returns, preserve the display and stop repeating resets.

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 152002

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 152002

    What they doUse the saved timing, system generation and Bosch diagnostics to test Control unit in the state that produced 152002; 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 152002. 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 152002

  2. 2

    Apply only Bosch's published user step

    No special tools

    Procedure

    Let your eBike cool down for ten minutes in a cooler environment. Avoid direct sunlight here. Record whether the condition “The temperature of your control unit is too high.” disappears and whether 152002 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 152002

  3. 3

    Use recurrence as the stop point

    No special tools

    Procedure

    If 152002 remains absent, monitor the same function; that does not prove a repair. If “The temperature of your control unit is too high.” or 152002 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 152002

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 152002 bici elettrica
  • Bosch 152002 bicicleta eléctrica
  • Bosch 152002 E-Bike
  • Bosch 152002 eBike
  • Bosch 152002 vélo électrique
  • Bosch eBike code 152002
  • Bosch eBike error 152002
  • Bosch eBike Fehler 152002
  • Bosch eBike Fehlercode 152002
  • code Bosch eBike 152002
  • codice Bosch eBike 152002
  • código Bosch eBike 152002
  • erreur Bosch eBike 152002
  • error Bosch eBike 152002
  • errore Bosch eBike 152002

What it means

Bosch eBike Systems assigns 152002 to Control unit with source severity ERROR. It reports the detected state, not proof that one particular part has failed. This may significantly reduce the LED brightness of the control unit.

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 152002

Symptoms and causes

Probable causes · in order

  • What the code establishesConfirmed

    Bosch identifies 152002 at Control unit: The temperature of your control unit is too high. Keep that meaning scoped to a Bosch eBike system and the exact code shown.

    Evidence: Bosch eBike Systems — official fault code 152002

  • What the official step decidesPossible

    If “The temperature of your control unit is too high.” clears after Bosch's exact step, only the current condition has cleared; no failed part has been proved. If 152002 returns, the documented user branch is exhausted and the recurrence becomes the evidence for service.

    Evidence: Bosch eBike Systems — official fault code 152002

Virtual technician

Does 152002 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 152002

    Bosch eBike Systems · 2026 · official_doc

Sources: Bosch eBike Systems — official fault code 152002reviewed 2026-08-23 · verified

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