What anomaly does the oil pressure warning light indicate if it stays on while the engine is running?

Question

DentroTest · Accepted Answer

The warning light or indicator lamp of the lubrication circuit (usually shaped like an oil can) monitors the pressure at which the lubricant circulates inside the engine. If this light stays on in red with the engine running, it warns of a critical lack of pressure in the circuit, usually caused by a dangerously low oil level, an oil pump failure or serious leaks. In the face of this alarm signal, the driver must stop the bus in a safe place and switch off the engine immediately to prevent the internal components from seizing.

What anomaly does the oil pressure warning light indicate if it stays on while the engine is running?

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