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Chrysler P0A79

Using a Scan T ool (wiTECH) with the appropriate Diag

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Chrysler dealer or qualified service facility for diagnosis and to determine whether the applicable software update applies.
Confidence95%

Quick answer

For the verified application, P0A79-00 is “Drive Motor B Inverter Performance.” Chrysler bulletin 08-044-17 Rev. A describes a software update intended to better address this DTC.

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 P0A79 mean?

For the verified application, P0A79-00 is “Drive Motor B Inverter Performance.” Chrysler bulletin 08-044-17 Rev. A describes a software update intended to better address this DTC.

2. Technical explanation

The supplied official Chrysler/NHTSA bulletin evidence identifies P0A79-00 as Drive Motor B Inverter Performance. The bulletin directs diagnosis with a wiTECH scan tool and the appropriate diagnostic procedure; the supplied excerpt does not provide the complete procedure.

3. What system is affected?

Drive Motor B inverter performance, as named by the verified DTC description.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Malfunction Indicator Lamp (MIL) illumination.

6. Possible causes

  • For the verified 2017 Chrysler Pacifica Hybrid application, Chrysler states that software was updated to better address P0A79-00. The supplied evidence does not establish a specific component failure or other root cause.

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 diagnosis using a wiTECH scan tool and the appropriate diagnostic procedure.
  • Do not attempt high-voltage inverter or drive-motor repairs yourself.

10. Step-by-step troubleshooting

  1. Confirm the stored DTC with a wiTECH scan tool.
  2. Use the appropriate Chrysler diagnostic procedure referenced by bulletin 08-044-17 Rev. A.
  3. Check whether the vehicle matches the verified bulletin application and whether the applicable software update is available.

11. When to contact service

Contact a Chrysler dealer or qualified service facility for diagnosis and to determine whether the applicable software update applies.

12. What the service center may check

  • Retrieve and document P0A79-00 and any accompanying DTCs using wiTECH.
  • Verify vehicle applicability: 2017 Chrysler Pacifica, US, equipped with the 3.6L V6 Hybrid Engine (EH3) and Eflite SI-EVT Transmission (DFQ), within the production range stated in the bulletin.
  • Follow the appropriate wiTECH diagnostic procedure referenced by Chrysler.
  • Determine whether the Chrysler software update referenced in bulletin 08-044-17 Rev. A applies.

13. Possible repair or resolution

  • Chrysler bulletin 08-044-17 Rev. A states that software was updated to better address P0A79-00. The supplied evidence does not establish the exact programming procedure, calibration level, or outcome for every vehicle.
  • Not yet established by verified evidence whether any hardware repair is required.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Chrysler 08-044-17 Rev. A, NHTSA Manufacturer Communication 10219898 / PDF 10220436: applies to certain 2017 Chrysler Pacifica Hybrid vehicles and lists P0A79-00 among DTCs that may accompany MIL illumination.
  • Chrysler communication 0804417, NHTSA Manufacturer Communication 10224727: states that software was updated to better address P0A79-00.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA-hosted Chrysler manufacturer communications 08-044-17 Rev. A / 0804417. https://static.nhtsa.gov/odi/tsbs/2017/MC-10220436-9999.pdf

19. Frequently asked questions

What does P0A79-00 mean on the verified Chrysler application?

It means Drive Motor B Inverter Performance.

What symptom is documented?

The verified Chrysler bulletin documents MIL illumination.

Is there a Chrysler bulletin related to this code?

Yes. Bulletin 08-044-17 Rev. A lists P0A79-00 for certain 2017 Chrysler Pacifica Hybrid vehicles and states that software was updated to better address the DTC.

Is it safe to drive or charge?

Not yet established by verified evidence.

20. Sources & verification

ReferenceVerified
Chrysler P0A79: Using a Scan T ool (wiTECH) with the appropriate Diag | EV Diagnostics