Ford P0443
P0420, P1450, P0443, P0452, P0456, P0460 and/or P2196? a. Yes - proceed to Step 2. b. No - this article does not apply. Refer to Powertrain Control / Emissions Diagnosis Manual or
Quick answer
For certain 2012–2018 Ford Focus vehicles in the US, P0443 is listed in Ford Field Communication EFC15332 / NHTSA manufacturer communication 24N07 as a diagnostic trouble code to check when driveability concerns are reported. The supplied evidence does not establish the code’s full definition, severity, driving safety, charging safety, or a specific repair.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does Ford P0443 mean?
For certain 2012–2018 Ford Focus vehicles in the US, P0443 is listed in Ford Field Communication EFC15332 / NHTSA manufacturer communication 24N07 as a diagnostic trouble code to check when driveability concerns are reported. The supplied evidence does not establish the code’s full definition, severity, driving safety, charging safety, or a specific repair.
2. Technical explanation
Verified evidence identifies P0443 as one of several DTCs referenced in the Ford service procedure within NHTSA manufacturer communication 24N07. That procedure directs service personnel to check for P0443 and other listed codes when a customer reports driveability concerns, including hesitation or rough idle. The supplied evidence does not establish that P0443 alone causes those symptoms, nor does it provide diagnostic steps, component-level fault information, or repair instructions.
3. What system is affected?
Not yet established by verified evidence.
4. How serious is this code?
Unknown. The supplied verified evidence does not assign a severity level.
5. Ford P0443 symptoms you may notice
- Driveability concerns such as hesitation or rough idle are referenced in the Ford communication as conditions for checking P0443 and other listed DTCs. A direct symptom-to-P0443 relationship is not established by the supplied evidence.
6. Possible causes of Ford P0443
- Not yet established by verified evidence.
7. Can I drive with Ford P0443?
Unknown. The supplied verified evidence does not state whether the vehicle is safe to drive with P0443.
8. Can I charge with Ford P0443?
Unknown. The supplied verified evidence does not address charging or charging safety.
9. What you can safely do
- Arrange diagnosis by a qualified Ford service provider if P0443 is present or if driveability concerns occur.
- Provide the stored DTC information and describe any hesitation, rough idle, or other driveability concern to the service provider.
10. How to troubleshoot Ford P0443
- The verified Ford procedure says to check for P0443, along with P0171, P0172, P0420, P1450, P0456, P0460, P0507, P144A, P2195, and P2196, when applicable driveability concerns are reported.
- Further troubleshooting steps are not established by the supplied verified evidence.
11. When to contact service
Contact a qualified Ford service provider for diagnosis. Ford Field Communication EFC15332 is referenced by NHTSA manufacturer communication 24N07.
12. What the service center may check
- Check for stored DTC P0443 and the other DTCs listed in the Ford communication when applicable driveability concerns are reported.
- No additional service checks are established by the supplied verified evidence.
13. Possible repair or resolution for Ford P0443
- Not yet established by verified evidence.
14. Affected vehicles
Not yet established by verified evidence.
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 11012235: 24N07, published December 4, 2024. It references Ford Field Communication EFC15332 and lists P0443 among DTCs to check in the stated service procedure.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
NHTSA Manufacturer Communication 24N07: https://static.nhtsa.gov/odi/tsbs/2025/MC-11012235-0001.pdf
19. Ford P0443 frequently asked questions
What does P0443 mean on a 2012–2018 Ford Focus?
The supplied evidence does not establish a full definition for P0443. It establishes only that Ford communication 24N07 lists P0443 among DTCs to check in the referenced service procedure.
Can P0443 be related to hesitation or rough idle?
The Ford communication references hesitation and rough idle as driveability concerns in the context of checking P0443 and other DTCs. It does not establish that P0443 by itself causes either symptom.
Which vehicles are covered by the supplied applicability data?
The supplied applicability data identifies US-market Ford Focus vehicles from model years 2012 through 2018.