Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
3Original wording in English
LINCOLN
Some 2025-2027 Aviator vehicles may exhibit a "Door Fault Service Required", "Transmission Not In Park" and/or "Hill Start Assist Not Available" message in the instrument panel cluster (IPC) with diagnostic trouble code (DTC) B1262:92 stored in multiple door latch control modules (DCME, DCMF, DCMG, and/or DCMH). DTC U0504 may al…
LINCOLN
Some 2024-2026 Nautilus vehicles may exhibit a "Door Fault Service Required", "Transmission Not In Park" and/or "Hill Start Assist Not Available" message in the instrument panel cluster (IPC) with diagnostic trouble code (DTC) B1262:92 stored in multiple door latch control modules (DCME, DCMF, DCMG, and/or DCMH). DTC U0504 may a…
LINCOLN
Some 2025/2026 Aviator vehicles may exhibit a "Door Fault Service Required", "Transmission Not In Park" and/or "Hill Start Assist Not Available" message in the instrument panel cluster (IPC) with diagnostic trouble code (DTC) B1262:92 stored in multiple door latch control modules (DCME, DCMF, DCMG, and/or DCMH). DTC U0504 may al…
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Lincoln | AVIATOR ↗ | 2027 |
| Lincoln | AVIATOR ↗ | 2026 |
| Lincoln | AVIATOR ↗ | 2025 |
| Lincoln | NAUTILUS ↗ | 2026 |
| Lincoln | NAUTILUS ↗ | 2025 |
| Lincoln | NAUTILUS ↗ | 2024 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Servo Motor Defrost Circuit Failure
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.