Bosch · Display
490 Bosch error code 490
Internal on-board computer fault
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.
- Display/control unit fault
- Stuck button, water ingress
- Display internal battery empty
Safe test steps
- Button function, water traces, connector.
- Cleanliness of display mount contacts.
Workshop reference values
- No general documented measurement value – manufacturer service documentation required.
Repair approach
- Clean, dry; replace display/control with a compatible unit.
Tools needed
- Contact cleaner, dielectric grease
- 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
410One or more on-board computer buttons are blocked418One or more buttons are permanently pressed430On-board computer internal battery is empty460USB port fault414Connection problem with the control unit419Configuration error422Connection problem with the drive unit423Connection problem with the battery