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Mitsubishi P1AFD

Return to Step 1. NO : The diagnosis is complete. DTC P1B01 Quick charged vehicle error . OPERATIONS  The quick charging plug communicates with the EV-ECU via the lo cal CAN (for

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence. The verified procedure uses connection of the quick-charging connector and a charge attempt as part of a DTC recheck, but does not establish general charging safety or availability.
ServiceService by a qualified Mitsubishi EV technician is appropriate because the verified procedure requires Mitsubishi scan tool MB991958, CAN-bus diagnosis, and work associated with the quick-charging and high-voltage battery charging path.
Confidence95%

Quick answer

For applicable U.S. Mitsubishi i-MiEV model years 2012, 2014, and 2016, P1AFD is addressed in Mitsubishi service bulletin diagnostic procedures for the EV-ECU and quick-charging system. The supplied evidence does not establish a complete plain-language definition, driving status, charging status, or a specific failed component.

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 P1AFD mean?

For applicable U.S. Mitsubishi i-MiEV model years 2012, 2014, and 2016, P1AFD is addressed in Mitsubishi service bulletin diagnostic procedures for the EV-ECU and quick-charging system. The supplied evidence does not establish a complete plain-language definition, driving status, charging status, or a specific failed component.

2. Technical explanation

Verified Mitsubishi diagnostic material directs use of scan tool MB991958 to diagnose CAN bus lines. If the CAN-bus check is abnormal, the procedure directs repair of the CAN bus line and then rechecking P1AFD after erasing the DTC and connecting the quick-charging connector to charge the battery completely. If P1AFD resets, the procedure proceeds to checking other-system DTCs, including P1019, P101A, P102E, and P102F. Separate supplied bulletin excerpts describe quick-charging communication between the quick-charging plug and EV-ECU through local CAN, and state that the quick charger supplies voltage to the main drive lithium-ion battery.

3. What system is affected?

EV-ECU, quick-charging connector/plug communication, local CAN for the quick charger, CAN bus lines, and main drive lithium-ion battery charging path.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • P1AFD stored in the EV-ECU. No driver-observable symptoms are established by the supplied verified evidence.

6. Possible causes

  • CAN bus line fault, when the scan-tool CAN-bus check result is abnormal.
  • Other-system DTCs P1019, P101A, P102E, or P102F may require evaluation when P1AFD remains set after the specified recheck. The supplied evidence does not establish these as causes of P1AFD.
  • A specific failed component 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. The verified procedure uses connection of the quick-charging connector and a charge attempt as part of a DTC recheck, but does not establish general charging safety or availability.

9. What you can safely do

  • Have a qualified Mitsubishi EV service provider diagnose the vehicle using the applicable factory procedure.
  • Record whether P1AFD returns after a quick-charge connection or charge attempt.
  • Do not attempt high-voltage, quick-charger, battery, or CAN-bus repairs yourself.

10. Step-by-step troubleshooting

  1. Use scan tool MB991958 to diagnose the CAN bus lines, as specified by the Mitsubishi procedure.
  2. If the CAN-bus result is abnormal, the procedure directs repair of the CAN bus line, with reference to Group 54C troubleshooting.
  3. After CAN-bus repair, erase P1AFD, connect the quick-charging connector to charge the battery completely, and recheck whether P1AFD is set.
  4. If P1AFD remains set, the supplied procedure directs confirmation of other-system DTCs, including P1019, P101A, P102E, and P102F.
  5. Another supplied procedure excerpt specifies erasing the stored DTC, connecting the quick-charging gun, and checking whether P1AFD is stored again; if it is not stored, that diagnosis is complete.

11. When to contact service

Service by a qualified Mitsubishi EV technician is appropriate because the verified procedure requires Mitsubishi scan tool MB991958, CAN-bus diagnosis, and work associated with the quick-charging and high-voltage battery charging path.

12. What the service center may check

  • Confirm P1AFD in the EV-ECU.
  • Diagnose CAN bus lines using scan tool MB991958.
  • Repair an abnormal CAN bus line according to the referenced Group 54C troubleshooting procedure.
  • Erase and recheck P1AFD after the specified quick-charge connection/charging step.
  • Check for P1019, P101A, P102E, and P102F if P1AFD remains set.

13. Possible repair or resolution

  • If the CAN-bus check is abnormal, the supplied Mitsubishi procedure directs CAN-bus line repair followed by a DTC recheck.
  • If P1AFD is not set after the specified recheck, the supplied procedure states that diagnosis is complete.
  • No additional repair resolution is established by the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mitsubishi TSB-19-54-005, published March 13, 2019: includes P1AFD EV-ECU diagnosis steps involving CAN-bus diagnosis, DTC erasure/recheck, quick-charge connection, and checks for P1019, P101A, P102E, and P102F. NHTSA document: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158410-9999.pdf
  • Mitsubishi TSB-19-54-004, published March 13, 2019: supplied excerpt includes a P1AFD recheck after connecting the quick-charging gun and describes quick-charging plug communication with the EV-ECU via local CAN. NHTSA document: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158409-9999.pdf
  • Mitsubishi TSB-19-54-003, published March 13, 2019: supplied excerpt includes the same P1AFD recheck and quick-charging/local-CAN description. NHTSA document: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158408-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official NHTSA-hosted Mitsubishi manufacturer communications: TSB-19-54-003, TSB-19-54-004, and TSB-19-54-005, each published March 13, 2019. Verified applicability in the supplied database is U.S.-market Mitsubishi i-MiEV model years 2012, 2014, and 2016.

19. Frequently asked questions

What does P1AFD mean?

The supplied database title/meaning text is incomplete and does not provide a reliable full plain-language definition. Verified material places P1AFD in an EV-ECU diagnostic process involving quick charging and CAN-bus checks.

Which vehicles are covered by the supplied evidence?

Mitsubishi i-MiEV vehicles for U.S. model years 2012, 2014, and 2016.

What does the Mitsubishi procedure check first?

The supplied TSB-19-54-005 excerpt directs diagnosis of the CAN bus lines with scan tool MB991958.

What happens if P1AFD does not return after the recheck?

The supplied procedure states that the diagnosis is complete when the DTC is not set or stored after its specified recheck.

Can I continue driving or charging?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mitsubishi P1AFD: Return to Step 1. NO : The diagnosis is complete.… | EV Diagnostics