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.
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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
FORD, LINCOLN
After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occurring between modul…
FORD, LINCOLN
After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occuring between module…
LINCOLN
Some 2024 Nautilus vehicles may set diagnostic trouble code (DTC) U211C:04 in the gateway module A (GWM) when a diagnostic self-test is performed. This may be due to a module communication error within a specified timeframe. DTC U211C:04 has no effect on functionality and will automatically become a historical DTC which can be c…
Check vehicle applicability
29A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | BRONCO SPORT ↗ | 2025 |
| Ford | ESCAPE ↗ | 2025 |
| Ford | ESCAPE ↗ | 2024 |
| Ford | EXPEDITION ↗ | 2025 |
| Ford | EXPLORER ↗ | 2025 |
| Ford | EXPLORER ↗ | 2024 |
| Ford | F-150 ↗ | 2025 |
| Ford | F-150 ↗ | 2024 |
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.