Bosch · Lights
550 Bosch error code 550
Impermissible consumer detected
Per manufacturer documentation
Note
Bosch classic system (Intuvia/Nyon/Kiox/Purion). Smart System codes differ.
Possible causes
General, component-based causes – not a manufacturer-specific statement.
- Short/open in light or cable
- Incompatible light (too much power, wrong voltage)
Safe test steps
- Does the fault clear with the light unplugged?
- Light cable damage.
Workshop reference values
- Light output voltage and rating are system-specific (manufacturer data).
Repair approach
- Repair cable; use an approved light.
Tools needed
- Digital multimeter (CAT III, fused inputs)
- Basic hand tools, insulated screwdrivers
Safety
- Power down (remove the battery) before unplugging connectors. Never apply pack voltage to data wires.
This information does not replace manufacturer service documentation. Work on batteries and high-voltage parts only with the appropriate expertise.
Related fault codes
502Bicycle lighting fault410One or more on-board computer buttons are blocked414Connection problem with the control unit418One or more buttons are permanently pressed419Configuration error422Connection problem with the drive unit423Connection problem with the battery424Communication error between components