What could cause the Maintenance Fault light to illuminate?

The Maintenance Fault light illuminating typically indicates an issue that requires immediate attention from maintenance personnel to ensure operational safety and reliability. Non-functional door systems can lead to a variety of problems, such as doors failing to open or close properly. This can create safety hazards for passengers, prevent the train from achieving proper operational status, or trigger automatic safety protocols that result in the illumination of the Maintenance Fault light.

Ensuring that door systems function correctly is vital not only for the safe boarding and alighting of passengers but also for the overall operational efficiency of the train. Therefore, the failure of such critical components is a significant reason for the Maintenance Fault light to activate, prompting necessary repairs or checks.