Verified EV diagnostic knowledge page

Dodge P0A78

Drive Motor A Inverter Performance P0A79-00 - Drive Motor B Inverter Performance P1626-00 - Park Pawl Motor Stuck Discussion: This con

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceProfessional diagnosis is appropriate because P0A78-00 concerns Drive Motor A inverter performance. The supplied evidence does not establish urgency, drivability, charging status, or a specific repair.
Confidence95%

Quick answer

P0A78-00 is identified in the verified Dodge material as “Drive Motor A Inverter Performance.” For applicable 2024–2025 US Dodge Charger vehicles, it appears in official manufacturer communications alongside park-system and Drive Motor B inverter DTCs. The supplied evidence does not establish a specific root cause, repair, driving status, or charging status.

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

Video guides

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

1. What does P0A78 mean?

P0A78-00 is identified in the verified Dodge material as “Drive Motor A Inverter Performance.” For applicable 2024–2025 US Dodge Charger vehicles, it appears in official manufacturer communications alongside park-system and Drive Motor B inverter DTCs. The supplied evidence does not establish a specific root cause, repair, driving status, or charging status.

2. Technical explanation

The supplied official NHTSA-hosted manufacturer communications list P0A78-00 as Drive Motor A Inverter Performance. Those communications also list P0A79-00 (Drive Motor B Inverter Performance), P1E18-00 (Internal Control Module Electronic Park Performance), P1625-00 (Park Pawl System Failure), and P1626-00 (Park Pawl Motor Stuck). The evidence supports the code description and its inclusion in these manufacturer communications; it does not establish that every P0A78 occurrence has the same cause or that all listed DTCs will be present together.

3. What system is affected?

Drive Motor A inverter performance, as identified by the verified DTC description.

4. How serious is this code?

Not yet established by verified evidence.

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?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Arrange professional diagnosis using the applicable Dodge service information. Do not attempt high-voltage inverter or park-system repair yourself.

10. Step-by-step troubleshooting

  1. A qualified service provider should retrieve and document all stored DTCs, including whether P0A78-00 is accompanied by P0A79-00, P1E18-00, P1625-00, or P1626-00. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Professional diagnosis is appropriate because P0A78-00 concerns Drive Motor A inverter performance. The supplied evidence does not establish urgency, drivability, charging status, or a specific repair.

12. What the service center may check

  • Check the vehicle’s VIN and configuration against the applicable Dodge manufacturer communication and service information.
  • Retrieve and record all stored DTCs and their suffixes.
  • Evaluate P0A78-00 in the context of any accompanying P0A79-00, P1E18-00, P1625-00, or P1626-00 codes.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 11026759, 08-021-25 REV. D, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication 11026761, 08-023-25 REV. D, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication 11026762, 08-024-25 REV. D, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication 11026765, 08-027-25 REV. D, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication 11026767, 08-070-25 REV. C, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication 11026768, 08-071-25 REV. D, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication 11026769, 08-072-25 REV. C, published December 18, 2025; lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communications 11029999 (08-092-26), 11030000 (08-093-26), 11030003 (08-096-26), 11030004 (08-097-26), 11030006 (08-100-26), and 11030007 (08-101-26), published March 7, 2026; each lists P0A78-00 among related DTCs.
  • NHTSA Manufacturer Communication PDF 11032852, S2508000050 REV. D, published May 16, 2026; lists P0A78-00 as Drive Motor A Inverter Performance.

16. Recall information

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Verified applicability: Dodge Charger, model years 2024–2025, United States. Source material consists of official manufacturer communications hosted by NHTSA. Applicability to a particular vehicle should be confirmed by VIN with Dodge or an authorized service provider.

19. Frequently asked questions

What does Dodge DTC P0A78-00 mean?

The verified manufacturer communication evidence identifies P0A78-00 as Drive Motor A Inverter Performance.

Which vehicles are covered by the supplied applicability data?

The verified applicability data identifies US-market 2024–2025 Dodge Charger vehicles.

Can I drive or charge with P0A78-00?

Not yet established by verified evidence.

Are other codes associated in the manufacturer communications?

Yes. The supplied communications also list P0A79-00, P1E18-00, P1625-00, and P1626-00. This does not establish that they will occur in every case.

20. Sources & verification

ReferenceVerified
Show all 14 verified sources
Dodge P0A78: Drive Motor A Inverter Performance P0A79-00 - Drive Motor… | EV Diagnostics