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
To diagnose B1041, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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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.