What usually causes it
- A failed oil pressure sensor
- A short in the wiring or a damaged plug
- A stuck oil pressure relief valve
- Very thick or wrong oil
P0523Starts at: Get it checked this week
Oil pressure sensor signal is high
The oil pressure sensor tells the car how well oil is moving through the engine. Its signal is higher than it should be, which is often a bad sensor or a wiring short.
Check this first
Check the oil level with the dipstick, on level ground with the engine off. If it is low, add the right oil and have a shop look at it.
What to watch for
- The oil warning light is on or flickering. Pull over and turn the engine off
- Ticking, tapping or knocking from the engine
- A burning oil smell or blue smoke
Can I keep driving?
We rate P0523 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about P0523
What does P0523 mean?
Oil pressure sensor signal is high. The oil pressure sensor tells the car how well oil is moving through the engine. Its signal is higher than it should be, which is often a bad sensor or a wiring short.
Can I keep driving with P0523?
We rate P0523 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes P0523?
The most common causes, in order: A failed oil pressure sensor; A short in the wiring or a damaged plug; A stuck oil pressure relief valve; Very thick or wrong oil.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.