Code result
P0523
Engine Oil Pressure Sensor/Switch High Voltage
Moderate severity
What it means
Same as P0520 with the signal voltage above the plausible range - usually a short to supply or sensor failure that pegs the output high.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Signal shorted to supply
highOne of the most commonly reported causes for this code — check this first.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P0523 freeNo credit card required