EV Diagnostics
Verified EV diagnostic knowledge page

Ford U200F

15, B15**:31, B15**:49 and/or B15A5:56 stored in the remote function actuator (RFA) module. If the vehicle is exhibiting other symptoms out

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Ford dealer or qualified Ford service provider for VIN-specific diagnosis and for the applicable Ford service communication guidance.
Confidence95%

Quick answer

For US-market Ford Mustang Mach-E vehicles listed as 2021–2024 and equipped with Phone-as-a-Key, DTC U200F:15 may be stored in the Remote Function Actuator (RFA) module in connection with Phone-as-a-Key concerns. Ford/NHTSA manufacturer communications address this condition.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does U200F mean?

For US-market Ford Mustang Mach-E vehicles listed as 2021–2024 and equipped with Phone-as-a-Key, DTC U200F:15 may be stored in the Remote Function Actuator (RFA) module in connection with Phone-as-a-Key concerns. Ford/NHTSA manufacturer communications address this condition.

2. Technical explanation

Verified Ford manufacturer communications identify U200F:15 as one of several DTCs that may be present in the RFA module on vehicles equipped with Phone-as-a-Key. The supplied evidence does not provide a complete fault-definition expansion for U200F by itself, nor does it establish a component-level failure cause.

3. What system is affected?

Remote Function Actuator (RFA) module / Phone-as-a-Key function.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level.

5. Symptoms you may notice

  • Phone-as-a-Key concerns may be present on affected vehicles.
  • The supplied evidence does not establish specific individual symptoms beyond Phone-as-a-Key concerns.

6. Possible causes

  • The verified communications associate this DTC with Phone-as-a-Key concerns on vehicles equipped with that feature.
  • A specific root cause is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Record the full DTC, including its suffix (:15), and identify the module reporting it as the RFA module.
  • If Phone-as-a-Key is not operating as expected, use an available alternative vehicle-entry or start method and arrange Ford service.
  • Do not attempt high-voltage repair; the supplied evidence does not indicate that this DTC requires any high-voltage repair.

10. Step-by-step troubleshooting

  1. Confirm whether the vehicle is equipped with Phone-as-a-Key.
  2. Use appropriate diagnostic equipment to confirm whether U200F:15 is stored in the RFA module.
  3. Check Ford service information applicable to the vehicle VIN and current software/service guidance.
  4. If symptoms outside Phone-as-a-Key are present, the supplied communications indicate that further diagnosis may be necessary; the specific diagnostic process is not included in the supplied evidence.

11. When to contact service

Contact a Ford dealer or qualified Ford service provider for VIN-specific diagnosis and for the applicable Ford service communication guidance.

12. What the service center may check

  • Verify U200F:15 and any accompanying DTCs in the RFA module.
  • Confirm the vehicle's Phone-as-a-Key equipment and reported concern.
  • Review applicable Ford manufacturer communications and current service information by VIN.
  • Evaluate other reported symptoms separately when they are outside the Phone-as-a-Key concern described by the communications.

13. Possible repair or resolution

  • A specific repair, software update, or resolution is not established by the supplied verified evidence.
  • Ford service should determine the applicable remedy using current VIN-specific service information.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Ford SSM 54555, NHTSA Manufacturer Communication 11028797, published February 6, 2026. It identifies U200F:15 among DTCs associated with Phone-as-a-Key concerns in vehicles equipped with the feature.
  • Ford SSM 49968, NHTSA Manufacturer Communication 10199511, published July 21, 2021. It identifies U200F:15 among RFA-module DTCs that may be present on 2021 Mustang Mach-E vehicles equipped with Phone-as-a-Key.
  • Ford SSM 50077, NHTSA Manufacturer Communication 10201575, published September 1, 2021. It identifies U200F:15 among DTCs associated with Phone-as-a-Key concerns on Mustang Mach-E vehicles equipped with the feature.
  • Ford SSM 50845, NHTSA Manufacturer Communication 10214161, published June 8, 2022. It identifies U200F:15 among DTCs associated with Phone-as-a-Key concerns on Mustang Mach-E vehicles equipped with the feature.

16. Recall information

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Ford manufacturer communications: SSM 54555 (NHTSA 11028797), SSM 49968 (NHTSA 10199511), SSM 50077 (NHTSA 10201575), and SSM 50845 (NHTSA 10214161).

19. Frequently asked questions

What does U200F:15 indicate on a Ford Mustang Mach-E?

The supplied Ford communications identify U200F:15 as a DTC that may be stored in the RFA module when a Phone-as-a-Key-equipped vehicle has Phone-as-a-Key concerns. A fuller code definition is not established by the supplied evidence.

Which vehicles are covered by the supplied evidence?

The verified applicability records list US-market 2021–2024 Ford Mustang Mach-E vehicles. Individual communications may have narrower model-year applicability, so VIN-specific service information should be checked.

Is it safe to drive or charge with U200F:15?

Not yet established by verified evidence.

Does U200F:15 prove that a part has failed?

No specific failed part or root cause is established by the supplied verified evidence.

20. Sources & verification

Verified
Ford U200F: 15, B15**:31, B15**:49 and/or B15A5:56 stored in the… | EV Diagnostics