Vehicle: 2019 Alfa Romeo Stelvio 2.2L Diesel
Title: P250F, Replaced Engine Oil Level Sensor
Complaint:
The customer states the check engine light is on.
Cause:
Connected a scan tool and found code P250F – Engine Oil Level Too 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.