B1041 on 2020-2023 Lincoln Aviator — Oil Level/Temperature Sensor Circuit Fault
1 vehicles · 1 makes
Most Reported On
B1041 is an OBD-II diagnostic trouble code meaning “Oil Level/Temperature Sensor Circuit Fault.” B1041 is a manufacturer-specific body-network code that, on most vehicles that use it (notably some Mercedes-Benz and GM applications), points to a fault in the engine oil level/temperature ('thermal oil') sensor circuit or its wiring. The control module monitors this sensor and has detected a signal that is out of range, open, or shorted. It generally does not affect drivability but means the oil-level/condition reading reported to the dash may be unreliable. Because the exact meaning varies by maker, confirm against your vehicle's service data. This code is most commonly reported on 2020-2023 Lincoln Aviator.
Common Causes
Diagnostic Tools
B1041 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does B1041 mean?
B1041 stands for "Oil Level/Temperature Sensor Circuit Fault." B1041 is a manufacturer-specific body-network code that, on most vehicles that use it (notably some Mercedes-Benz and GM applications), points to a fault in the engine oil level/temperature ('thermal oil') sensor circuit or its wiring. The control module monitors this sensor and has detected a signal that is out of range, open, or shorted. It generally does not affect drivability but means the oil-level/condition reading reported to the dash may be unreliable. Because the exact meaning varies by maker, confirm against your vehicle's service data.
What are the most common causes of B1041?
The most common causes of B1041 are: Faulty oil level/temperature (thermal) sensor, Damaged or chafed sensor wiring (often near a harness bracket), Corroded or loose sensor connector, Low or contaminated oil affecting the sensor reading, Open or short in the sensor signal/ground circuit, Faulty control module receiving the sensor input. The specific cause varies by vehicle.
How much does it cost to fix B1041?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by B1041?
Au7o has documented B1041 across 1 vehicle models from 1 manufacturers: Lincoln.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.