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
2Original wording in English
FORD, LINCOLN
Some 2024-2026 Explorer/Aviator/Police Interceptor Utility vehicles may exhibit an illuminated malfunction indicator (MIL) lamp with engine over-temperature warning in the message center and poor air conditioning (A/C) performance from the engine cooling fan not running. Diagnostic trouble codes (DTC) B3A1B, P0113, P0217, and/or…
FORD
Some 2024 Mustang vehicles may exhibit an inoperative air conditioning (a/c) system. Diagnostic trouble codes (DTCs) B3A1B and/or P0534 may be set within the powertrain control module (PCM). This condition is currently under investigation by engineering. For vehicles that meet this criteria, submit a Report a Vehicle Concern (if…
Check vehicle applicability
7A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | EXPLORER ↗ | 2026 |
| Ford | EXPLORER ↗ | 2025 |
| Ford | EXPLORER ↗ | 2024 |
| Ford | MUSTANG ↗ | 2024 |
| Lincoln | AVIATOR ↗ | 2026 |
| Lincoln | AVIATOR ↗ | 2025 |
| Lincoln | AVIATOR ↗ | 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.