Vehicle
2019 Alfa Romeo Stelvio 2.2L
Title
P250F, Replaced Engine Oil Level Sensor
Complaint
The customer states that the check engine light is on.
Cause
Connected a scan tool and found code P250F – Engine Oil Level Sensor Out of Range Low. Removed the engine dipstick to confirm the oil level and found that the oil level was correct. Raised the vehicle on a hoist and removed the under tray to gain access to the engine oil pan. Carried out a visual inspection of the oil level sensor and oil level sensor wiring harness and found no obvious faults. With the key on and engine off, used a multi-meter to check for voltage and ground at the oil level sensor connector and found that both were present. Connected a lab scope to the oil level sensor signal wire, viewed the signal produced, and found that it was erratic. These tests verified that the oil level sensor was faulty.
Correction
Replaced the engine oil level sensor, cleared codes, performed a road test, and verified that the vehicle operated properly. The check engine light did not illuminate and no fault codes returned.