What DC-DC Inverter MCB should be checked after the external light controls MCB for headlights not working?

The approach to troubleshooting a situation where the headlights are not functioning involves systematically checking the relevant circuit breakers associated with the light control systems. The correct choice emphasizes the importance of addressing components that can impact multiple lighting functions.

By checking the Front Light Wiper MCB, the rationale lies in its connection to the overall front lighting system, which may include circuits that control headlights. This MCB could have a direct influence on the operation of the headlights if there is a shared path for the headlight circuitry and wiper controls, leading to a malfunction.

Thus, ensuring the condition of the Front Light Wiper MCB is a critical step in diagnosing the issue, as it may reveal faults in the broader front lighting system rather than solely focusing on the headlight circuit itself. This broader perspective is essential in an effective fault-finding exercise.