How serious is P0523?
The P0523 code is very serious because it can indicate not only a problem with the engine oil pressure sensor, but also a problem with the vehicle's oil system. The car owner may be using the wrong type of oil, or the car's oil level may be too low, for example due to a leak. To avoid serious engine damage, if a P0523 code is detected, it is recommended that you have the fault diagnosed and repaired by a qualified technician as soon as possible.
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