B1041 on Lincoln: How to Diagnose & Fix
B1041 — Lincoln-specific definition
1 Lincoln model · 1 documented issue
B1041 on Lincoln by model: symptoms, diagnosis and fix
Some 2020-2023 Aviators equipped with air suspension may display a Drive Malfunction and/or Suspension Fault message with DTCs B1041 and U2100 stored in Suspension Control Module A (SUMA). Ford SSM 51621 says this bulletin-defined condition can occur when SUMA enters diagnostic service mode after an on-demand self-test following suspension diagnosis or repair. It does not identify a leaking air spring, compressor, height sensor, or solenoid as the cause of these two codes.
Common Symptoms
- Drive Malfunction message
- Suspension Fault message
- DTC B1041 stored in SUMA
- DTC U2100 stored in SUMA
How to Fix
Use Ford Diagnosis and Repair System (FDRS) and select SUMA > Run All CM (Continuous Memory) DTCs. Do not run SUMA > OD and CM DTCs for this condition because the on-demand self-test can create the invalid codes. If that test was run, clear the condition with SUMA > Transport and Factory Mode Deactivation. If other DTCs or physical ride-height symptoms remain, follow Workshop Manual Section 204-05 normal diagnostics before selecting a part.
Owner tips & cautions
- WarningDo not replace a compressor, air spring, sensor, or solenoid from B1041/U2100 alone; SSM 51621 first corrects a diagnostic service-mode state.
- TipAsk whether an on-demand SUMA self-test was run immediately before the warning appeared and retain the complete FDRS fault report for any remaining diagnosis.
Sources for this issue (1)
B1041 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does B1041 mean on a Lincoln?
On Lincoln, B1041: On Lincoln (2020-2025 Aviator with air suspension) B1041 is stored in Suspension Control Module A (SUMA) together with U2100 when the SUMA enters diagnostic service mode after suspension diagnosis/repair. It is not an oil level/temperature sensor code. Source: Ford SSM 53688 (static.nhtsa.gov/odi/tsbs/2025/MC-11017398-0001.pdf): 'with diagnostic trouble codes (DTCs) B1041 and U2100 stored in the suspension control module A (SUMA). This may be due to the SUMA entering diagnostic service mode following suspension system diagnosis or repair.' SSM 51621 says the same for 2020-2023 Aviator. On Lincoln it is documented across 1 model: Aviator.
How much does it cost to fix B1041 on a Lincoln?
Repair costs vary widely with the root cause and Lincoln model; each issue on this page carries its own estimate where one is published.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.