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
5Original wording in English
FORD
Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P20A5 stored in the powertrain control module (PCM).
FORD
Some 2025 F-650/F-750 vehicles equipped with a 6.7L and built on or before 10-Oct-2024 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P20A5 stored in the powertrain control module (PCM).
FORD
Some 2025 F-650/F-750 vehicles built on or before 10-Oct-2024 equipped with a 6.7L engine may exhibit an illuminated MIL with DTC P20A5 stored in the PCM.
FORD
Some 2024 F-Super Duty vehicles built on or before 03-Oct-2024 and equipped with a 6.7L engine may exhibit an illuminated MIL with DTC P20A5 stored in the PCM.
Check vehicle applicability
11A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | F-250 SD ↗ | 2024 |
| Ford | F-250 SD ↗ | 2023 |
| Ford | F-350 SD ↗ | 2024 |
| Ford | F-350 SD ↗ | 2023 |
| Ford | F-450 SD ↗ | 2024 |
| Ford | F-450 SD ↗ | 2023 |
| Ford | F-550 SD ↗ | 2025 |
| Ford | F-550 SD ↗ | 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.