Knowledge base
Display
Possible causes
- 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.
Related verified fault codes
| Code | Meaning | Component | Reliability |
|---|---|---|---|
| Bosch 410 | One or more on-board computer buttons are blocked | Display | Per manufacturer documentation |
| Bosch 418 | One or more buttons are permanently pressed | Display | Per manufacturer documentation |
| Bosch 430 | On-board computer internal battery is empty | Display | Per manufacturer documentation |
| Bosch 460 | USB port fault | Display | Per manufacturer documentation |
| Bosch 490 | Internal on-board computer fault | Display | Per manufacturer documentation |
| Bafang 36 | Keypad detection circuit fault | Display | Per manufacturer documentation |