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Mitsubishi P1D25

: Inverter Output Current TSB-20-54-003 Page 43 of 95 FAIL-SAFE AND BACKUP FUNCTION  The charge is stopped. . PROBABLE CAUSES  The EV-ECU is failed.  There is not enough coolant

DriveNot yet established by verified evidence.
ChargeNo while the documented P1D25 fail-safe function is active: the supplied bulletin states that charging is stopped.
ServiceProfessional diagnosis is appropriate because the documented probable causes include EV-ECU, cooling-system, onboard-charger temperature-sensor, and other EV-system components.
Confidence95%

Quick answer

For U.S. 2012–2013 Mitsubishi i-MiEV vehicles, DTC P1D25 is identified in Mitsubishi TSB-20-54-003 as “Inverter Output Current.” The verified fail-safe action is that charging is stopped.

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 P1D25 mean?

For U.S. 2012–2013 Mitsubishi i-MiEV vehicles, DTC P1D25 is identified in Mitsubishi TSB-20-54-003 as “Inverter Output Current.” The verified fail-safe action is that charging is stopped.

2. Technical explanation

The supplied official NHTSA-hosted Mitsubishi service bulletin identifies P1D25 as “Inverter Output Current.” The bulletin’s diagnostic information lists several probable causes, but the supplied evidence does not establish which cause applies to any individual vehicle.

3. What system is affected?

The supplied evidence identifies the code as related to inverter output current and includes charging-system fail-safe behavior. A more specific system assignment is not yet established by verified evidence.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Charging is stopped when the fail-safe function associated with P1D25 is active.

6. Possible causes

  • EV-ECU failure.
  • Insufficient coolant.
  • Water-pump failure.
  • Radiator-fan failure.
  • Failure of the temperature sensor installed in the onboard charger.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

No while the documented P1D25 fail-safe function is active: the supplied bulletin states that charging is stopped.

9. What you can safely do

  • Do not attempt high-voltage component repair.
  • Arrange diagnosis by a qualified Mitsubishi EV service provider.
  • Provide the stored DTC P1D25 and the bulletin reference TSB-20-54-003 to the service provider.

10. Step-by-step troubleshooting

  1. The supplied bulletin excerpt begins its diagnosis procedure with use of scan tool MB99195.
  2. Further diagnostic steps are not included in the supplied verified evidence.

11. When to contact service

Professional diagnosis is appropriate because the documented probable causes include EV-ECU, cooling-system, onboard-charger temperature-sensor, and other EV-system components.

12. What the service center may check

  • Retrieve and confirm P1D25 using scan tool MB99195, as indicated by the supplied bulletin excerpt.
  • Evaluate the bulletin-listed probable causes using the complete manufacturer diagnostic procedure. Specific test steps are not established by the supplied evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence. Repair depends on the cause confirmed through manufacturer diagnosis.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mitsubishi TSB-20-54-003, published April 22, 2020; NHTSA Manufacturer Communication PDF 10175779. The supplied excerpt identifies P1D25 as “Inverter Output Current,” states that charging is stopped, and lists probable causes.

16. Recall information

  • No recall information was supplied or established by verified evidence.

17. Official manufacturer information

Official source: NHTSA-hosted Mitsubishi Manufacturer Communication PDF 10175779, TSB-20-54-003: https://static.nhtsa.gov/odi/tsbs/2020/MC-10175779-9999.pdf

19. Frequently asked questions

What does Mitsubishi P1D25 mean?

For the covered Mitsubishi i-MiEV application, the supplied official bulletin identifies P1D25 as “Inverter Output Current.”

What happens when P1D25 is active?

The supplied bulletin states that the charge is stopped.

What can cause P1D25?

The bulletin lists EV-ECU failure, insufficient coolant, water-pump failure, radiator-fan failure, and failure of the temperature sensor installed in the onboard charger as probable causes.

Which vehicles are covered by the supplied evidence?

Mitsubishi i-MiEV, model years 2012–2013, U.S. region.

20. Sources & verification

Verified
Mitsubishi P1D25: : Inverter Output Current TSB-20-54-003 Page 43 of… | EV Diagnostics