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 2025-2026 Escape/Corsair PHEV only vehicles built on 21-Jul-2025 and through 27-Oct-2025 may exhibit an intermittent no crank/no start condition with an illuminated MIL and Service Engine Soon message in the message center with diagnostic trouble codes (DTC) P1A42:00 and/or P1A0F:87 or stored in the battery energy control m…
FORD, LINCOLN
Some 2020-2021 Aviator vehicles equipped with a 3.0L PHEV powertrain may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) U0100, P1A42 and/or P1A43 stored in battery energy control module (BECM). This may be due to software in the PCM. To correct the condition, follow the service proce…
Check vehicle applicability
24A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | ESCAPE PHEV ↗ | 2026 |
| Ford | ESCAPE PHEV ↗ | 2025 |
| Ford | F-250 SD ↗ | 2019 |
| Ford | F-250 SD ↗ | 2018 |
| Ford | F-250 SD ↗ | 2017 |
| Ford | F-350 SD ↗ | 2019 |
| Ford | F-350 SD ↗ | 2018 |
| Ford | F-350 SD ↗ | 2017 |
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.