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Bosch error 0x595001: CAN bus communication lost with eShift

Bosch eBike (DiagnosticTool / eBike Flow hex code)Dealer neededRide with caution

The motor controller has lost the CAN bus signal to the eShift gearbox module, so the gear indicator on the display is no longer updated. As a result, automatic or electronic gear changes stop working and the drive system falls back to a safe mode. Motor assist usually remains available, but the rider has no readout of the current gear.

Drive system	Bosch eBike (DiagnosticTool / eBike Flow hex code)
Severity	Dealer needed
Keep riding?	Ride with caution
Typical cost	Expect a diagnostic fee of around 40 to 80 EUR, with a new eShift actuator or motor harness typically running 120 to 350 EUR fitted, depending on the gearbox brand.

Likely causes

Loose or corroded connector at the eShift actuator or motor harness
Damaged CAN bus cable routed along the frame or near the rear dropout
Water ingress into the eShift module or motor port
Failed eShift actuator or gearbox controller
Recent work on the rear wheel that disturbed the cable routing
Software mismatch between drive unit and eShift after a firmware update

How to fix Bosch error 0x595001

Switch the system off, wait ten seconds, then power it on again to clear a transient fault.
Inspect the visible wiring between the motor and the eShift unit for chafing, kinks or pulled plugs.
Unplug and reseat the connectors at the motor and at the eShift module, checking for moisture or corrosion.
Confirm the battery is fully seated and update the system through the eBike Flow app.
Run a full gearbox diagnosis with the Bosch diagnostic tool to read live data and module status.
If the code returns after the diagnostic, the eShift actuator or motor harness must be replaced by a dealer.

Go to a dealer if: A dealer is required once reseating and a diagnostic have not cleared the code, because module replacement and gearbox diagnosis need the Bosch service tool.
Warranty: A genuine CAN bus or eShift module failure within the two-year component warranty is normally covered, while crash damage, water ingress from pressure washing and worn cables are treated as owner damage.
Typical cost: Expect a diagnostic fee of around 40 to 80 EUR, with a new eShift actuator or motor harness typically running 120 to 350 EUR fitted, depending on the gearbox brand.

Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.

Frequently asked

Can I reset bosch error 0x595001?

A power cycle clears the code if it is transient, but if the eShift module is not responding on the CAN bus the warning returns straight after the restart. A full reset needs the Bosch diagnostic tool, which only a workshop has.

Is it safe to keep riding with this code?

Motor assist usually keeps working, but the eShift indicator is blank so you lose the current gear readout and any automatic shifting. Ride gently to a workshop and avoid heavy loads on the drivetrain until the fault is cleared.

How much does the repair cost and is it under warranty?

A diagnostic typically costs 40 to 80 EUR and a replacement eShift actuator or harness runs 120 to 350 EUR fitted. Failures inside two years without water or crash damage are usually treated as a warranty component replacement.

Related Bosch codes

0x503001 · Speed sensor signal missing or invalid 0x503002 · Speed sensor magnet misplaced or tampered 0x512001 · ABS and fleet parameters both enabled 0x520001 · ABS component not recognised by drive unit

Manuals and video

Official source: www.ridewill.com

Not an official Bosch document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.