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Audi P0AE300

off was triggered). • DTC P168A00 (Reversible crash shut-off was triggered). • DTC P1A0100 (Crash signal monitoring failed). • DTC P1A3700 (Controller for cells of high voltage/hyb

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact an Audi-qualified service facility for diagnosis, particularly if the vehicle does not indicate ready status or does not display a battery charge level after ignition is switched on.
Confidence95%

Quick answer

P0AE300 is identified in an official Audi/NHTSA service communication as “Hybrid/EV Battery Precharge Contactor Circuit Stuck Open.” The verified applicability is the 2022 Audi e-tron GT in the US.

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 P0AE300 mean?

P0AE300 is identified in an official Audi/NHTSA service communication as “Hybrid/EV Battery Precharge Contactor Circuit Stuck Open.” The verified applicability is the 2022 Audi e-tron GT in the US.

2. Technical explanation

The supplied official service-communication evidence lists P0AE300 among DTCs that may be stored in the Hybrid Battery Management (BECM), J840, address word 008C. It identifies the code as “Hybrid/EV Battery Precharge Contactor Circuit Stuck Open.” The supplied evidence does not establish a vehicle-specific root cause, diagnostic procedure, or repair for this code.

3. What system is affected?

Hybrid Battery Management (BECM), J840 (address word 008C); hybrid/EV battery precharge-contactor circuit.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The official communication describes that, after switching the ignition on, the power meter may not show the vehicle is ready and no battery charge level may be shown.

6. Possible causes

  • A precharge contactor circuit stuck open is identified by the DTC description. The underlying 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

  • Arrange professional diagnosis by an Audi-qualified service facility.
  • Do not attempt high-voltage battery or contactor repairs yourself.

10. Step-by-step troubleshooting

  1. Have a qualified technician check for stored DTCs in Hybrid Battery Management (BECM), J840, address word 008C.
  2. The supplied evidence does not establish further owner-level troubleshooting steps.

11. When to contact service

Contact an Audi-qualified service facility for diagnosis, particularly if the vehicle does not indicate ready status or does not display a battery charge level after ignition is switched on.

12. What the service center may check

  • Check the Hybrid Battery Management (BECM), J840, address word 008C, for P0AE300 and any accompanying DTCs.
  • The supplied evidence does not establish additional service checks.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 10205971: A9321602065473_1, published December 22, 2021. It lists P0AE300 as “Hybrid/EV Battery Precharge Contactor Circuit Stuck Open” in BECM J840 (address word 008C) and describes possible no-ready indication and no displayed battery charge level after ignition on.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified source: NHTSA Manufacturer Communication PDF 10205971, Audi document A9321602065473_1: https://static.nhtsa.gov/odi/tsbs/2021/MC-10205971-0001.pdf

19. Frequently asked questions

What does Audi DTC P0AE300 mean?

The verified official communication identifies P0AE300 as “Hybrid/EV Battery Precharge Contactor Circuit Stuck Open.”

Which vehicle is verified as applicable?

The supplied applicability evidence identifies the US-market 2022 Audi e-tron GT.

What may be seen with this condition?

The official communication states that, after ignition is switched on, the power meter may not show the vehicle is ready and no battery charge level may be shown.

Is it safe to drive or charge?

Not yet established by verified evidence.

20. Sources & verification

Verified
Audi P0AE300: off was triggered). • DTC P168A00 (Reversible crash… | EV Diagnostics