P0522 — Engine Oil Pressure Sensor/Switch Circuit Low Voltage
Category: Powertrain Severity: High
Updated:
DTC code P0522 means: Engine Oil Pressure Sensor/Switch Circuit Low Voltage. It falls under the "Powertrain" category, with an estimated severity of High. Common causes include failed oil pressure sensor, genuinely low oil pressure and signal wire shorted to ground; it's worth confirming the diagnosis before replacing parts.
Possible causes
- Failed oil pressure sensor
- Genuinely low oil pressure
- Signal wire shorted to ground
- Oil in the connector
Symptoms
- Oil warning light on
- Oil pressure gauge at zero
- Check engine light
How to diagnose it step by step
- Check oil level.
- Measure actual pressure.
- Check connector and wiring.
- Replace the sensor.
How to fix it
First confirm actual pressure with a gauge. With correct pressure, the fault is the sensor or its wire (the sensor often leaks oil into the connector).
Estimated repair cost
Sensor: $20–100; $50–180 installed.
Frequently asked questions
What does DTC code P0522 mean?
Engine Oil Pressure Sensor/Switch Circuit Low Voltage.
Is code P0522 serious?
Severity High. Have it checked as soon as possible, especially if it affects safety or the catalytic converter.
Can I keep driving with code P0522?
Not until actual pressure is verified.
Related codes
P0521 P0523 P0530 P0532 P0509 P0508 P0507 P0506 P0505 P0501
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