EV Diagnostics
Verified EV diagnostic knowledge page

Ford U1A01

93 stored in the telematics control unit (TCU). This may be due to various software parameters within the TCU. If this DTC is identified du

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Ford dealer or qualified Ford service provider if U1A01:93 is present and diagnosis is needed. The supplied evidence does not establish whether service is mandatory.
Confidence95%

Quick answer

For 2021–2022 Ford Mustang Mach-E vehicles in the US, U1A01:93 may be an erroneous code stored in the telematics control unit (TCU). Ford’s SSM 50829 attributes it to various TCU software parameters when the code is identified during diagnosis.

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 U1A01 mean?

For 2021–2022 Ford Mustang Mach-E vehicles in the US, U1A01:93 may be an erroneous code stored in the telematics control unit (TCU). Ford’s SSM 50829 attributes it to various TCU software parameters when the code is identified during diagnosis.

2. Technical explanation

Verified evidence identifies U1A01:93 as a DTC stored in the TCU. NHTSA-published Ford SSM 50829 states that, on certain 2021–2022 Ford and Lincoln vehicles, this code may be erroneous and may be caused by various software parameters within the TCU. The supplied evidence does not provide the remainder of the service procedure or confirm a specific corrective action.

3. What system is affected?

Telematics control unit (TCU).

4. How serious is this code?

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

5. Symptoms you may notice

  • An erroneous U1A01:93 DTC may be stored in the TCU.
  • No driver-observable symptoms are established by the supplied verified evidence.

6. Possible causes

  • Various software parameters within the telematics control unit (TCU), according to Ford SSM 50829.

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 exact code, including the :93 suffix, and the module in which it was stored.
  • Have a Ford service provider diagnose the code using applicable Ford procedures.
  • Do not assume the code alone establishes a drivability, charging, or high-voltage-system condition.

10. Step-by-step troubleshooting

  1. Confirm that the vehicle is a 2021–2022 Ford Mustang Mach-E in the US, as supported by the supplied applicability evidence.
  2. Confirm that U1A01:93 is stored in the TCU.
  3. Review Ford SSM 50829 during diagnosis. Further diagnostic steps are not established by the supplied evidence.

11. When to contact service

Contact a Ford dealer or qualified Ford service provider if U1A01:93 is present and diagnosis is needed. The supplied evidence does not establish whether service is mandatory.

12. What the service center may check

  • Verify the DTC suffix is :93.
  • Verify the code is stored in the telematics control unit (TCU).
  • Review Ford SSM 50829 for applicable diagnostic guidance.

13. Possible repair or resolution

  • Not yet established by verified evidence. The supplied SSM summary identifies TCU software parameters as a possible reason for an erroneous code but does not provide a verified repair or programming outcome.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Ford SSM 50829, published June 6, 2022, reported through NHTSA Manufacturer Communication 10213708. It states that 2021–2022 various Ford and Lincoln vehicles may exhibit an erroneous U1A01:93 DTC in the TCU due to various TCU software parameters.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

NHTSA Manufacturer Communication 10213708: Ford SSM 50829, published June 6, 2022. https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=10213708

19. Frequently asked questions

What does U1A01:93 mean on a 2021–2022 Ford Mustang Mach-E?

The supplied Ford/NHTSA evidence identifies it as a code stored in the telematics control unit (TCU). Ford SSM 50829 says it may be erroneous due to various TCU software parameters.

Is U1A01:93 a confirmed vehicle fault?

Not necessarily. Ford SSM 50829 states that U1A01:93 may be erroneous under the covered circumstances.

Can I drive or charge with U1A01:93?

Not yet established by verified evidence.

Does U1A01:93 have a verified repair?

Not yet established by verified evidence in the supplied material.

20. Sources & verification

Verified
Ford U1A01: 93 stored in the telematics control unit (TCU). This may… | EV Diagnostics