P0522 on Ford
Engine Oil Pressure Sensor/Switch Low Voltage
P0522 on Ford vehicles indicates engine oil pressure sensor/switch low voltage. Au7o has documented this code across 1 Ford model — most commonly on EcoSport. This code means the engine oil pressure sensor is sending a voltage that is lower than the normal operating range. Depending on how the sensor is wired, this can indicate either a wiring/sensor fault or genuinely low oil pressure. Because low oil pressure can quickly destroy an engine, the actual oil pressure should be verified with a mechanical gauge before assuming it's just an electrical issue. Watch for an oil warning light, ticking noises, or other signs of low pressure.
Common Causes of P0522
- •Faulty oil pressure sensor/switch
- •Short to ground or low voltage in the sensor wiring
- •Genuinely low oil pressure or low oil level
- •Corroded or damaged connector at the sensor
- •Poor electrical ground
- •Failing oil pump
- •Use of incorrect oil viscosity
P0522 on Ford by Model
Ford EcoSport(1 issue)
- 1.0L EcoBoost Oil Pump Belt Tensioner Failure Leading to Engine Seizure2018-2022
The 1.0L EcoBoost three-cylinder engine in the Ford EcoSport uses a belt-driven oil pump with a spring-loaded tensioner. The tensioner can fail, causing the oil pump drive belt to slip or break. When the belt fails, the oil pump stops operating and the engine loses oil pressure within seconds, leading to catastrophic bearing damage and engine seizure. Ford issued a TSB and later a recall (NHTSA 23V905000) in December 2023 covering 2018-2022 EcoSport vehicles. The failure can occur without warning, and the engine may stall while driving.
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View P0522 across all makes →Frequently Asked Questions
What does P0522 mean on Ford?▼
P0522 stands for "Engine Oil Pressure Sensor/Switch Low Voltage." This code means the engine oil pressure sensor is sending a voltage that is lower than the normal operating range. Depending on how the sensor is wired, this can indicate either a wiring/sensor fault or genuinely low oil pressure. Because low oil pressure can quickly destroy an engine, the actual oil pressure should be verified with a mechanical gauge before assuming it's just an electrical issue. Watch for an oil warning light, ticking noises, or other signs of low pressure. On Ford specifically, this code is documented across 1 model.
What causes P0522 on Ford vehicles?▼
Common causes on Ford: Faulty oil pressure sensor/switch, Short to ground or low voltage in the sensor wiring, Genuinely low oil pressure or low oil level, Corroded or damaged connector at the sensor, Poor electrical ground. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0522 on a Ford?▼
Repair costs vary widely depending on the root cause and specific Ford model.
Which Ford models have P0522 documented?▼
Au7o has documented P0522 on 1 Ford model: EcoSport.