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Aion P164219

P164219

DriveUnknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with P164219 present.
ChargeUnknown. The supplied verified evidence does not establish whether the vehicle is safe to charge with P164219 present.
ServiceService need is unknown in the supplied record. If P164219 is present, professional diagnosis using applicable Aion service information is appropriate because the code is classified in the supplied record as BMS / traction battery and no public verified fault definition or procedure was provided.
Confidence85%

Quick answer

P164219 is a verified Aion diagnostic trouble code listed for specified Aion EV models. Its OEM fault description, symptoms, causes, driving/charging status, and repair procedure are not yet established by verified evidence.

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 P164219 mean?

P164219 is a verified Aion diagnostic trouble code listed for specified Aion EV models. Its OEM fault description, symptoms, causes, driving/charging status, and repair procedure are not yet established by verified evidence.

2. Technical explanation

Verified technical-manual index evidence confirms the identity of DTC P164219 for the listed Aion applications. The supplied evidence does not provide the full OEM description because it is gated or not public. Although the diagnostic record categorizes it under BMS / traction battery, the exact monitored condition represented by P164219 is not yet established by verified evidence.

3. What system is affected?

BMS / traction battery is the system classification in the supplied diagnostic record. The specific component, circuit, battery function, or control condition is not yet established by verified evidence.

4. How serious is this code?

Unknown. No verified evidence assigns a severity level to P164219.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with P164219 present.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not establish whether the vehicle is safe to charge with P164219 present.

9. What you can safely do

  • Record the code exactly as P164219 and retain any accompanying diagnostic codes.
  • Have the vehicle assessed using applicable Aion diagnostic information or an appropriately qualified EV service provider.
  • Do not attempt high-voltage battery, BMS, or traction-battery repairs based on this page; no verified repair procedure was supplied.

10. Step-by-step troubleshooting

  1. Confirm P164219 with a compatible diagnostic scan tool.
  2. Check for and document any additional stored codes. No verified evidence establishes diagnostic relationships between P164219 and other codes.
  3. Use the applicable OEM diagnostic procedure when available. The procedure is not included in the supplied verified evidence.

11. When to contact service

Service need is unknown in the supplied record. If P164219 is present, professional diagnosis using applicable Aion service information is appropriate because the code is classified in the supplied record as BMS / traction battery and no public verified fault definition or procedure was provided.

12. What the service center may check

  • Confirm code presence and status using a compatible scan tool.
  • Review applicable Aion OEM diagnostic information for the vehicle model and model year.
  • No further component tests, wiring checks, or high-voltage procedures are established by verified evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence. No verified repair, replacement, programming, calibration, or clearing procedure was supplied.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Not yet established by verified evidence. No technical service bulletins were supplied.

16. Recall information

  • Not yet established by verified evidence. No recall information was supplied.

17. Official manufacturer information

Verified manual-index listings identify P164219 for the specified Aion vehicles, but the full OEM code definition is gated or not public in the supplied sources. Sources: 17VIN technical manual index for AION S MAX, AION RT, and AION UT; Technical manual index listings for AION V and AION Y.

19. Frequently asked questions

What does Aion code P164219 mean?

The exact OEM meaning is not yet established by verified evidence. Verified sources confirm only that P164219 is listed for the specified Aion applications.

Which vehicles have verified applicability for P164219?

Aion AION S MAX (2023), AION RT (2024), AION UT (2025), AION V (2024), and AION Y (2023–2024), all with GLOBAL region applicability in the supplied data.

Can I drive or charge with P164219?

Not yet established by verified evidence. The supplied record marks both driving and charging status as unknown.

How is P164219 repaired?

Not yet established by verified evidence. No OEM repair procedure was supplied.

20. Sources & verification

Verified
Aion P164219: P164219 | EV Diagnostics