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Mitsubishi P1D32

EEPROM Fail TSB-20-54-003 Page 46 of 95 DIAGNOSIS STEP 1. Recheck for diagnostic trouble code. Check again if the DTC is set in the on board charger. (1) Erase the DTC. (2) Perform

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence. The verified procedure includes performing a regular charge as part of diagnostic confirmation.
ServiceContact a Mitsubishi EV-qualified service facility if P1D32 is present, especially if it returns after the bulletin’s clear-code and regular-charge recheck.
Confidence95%

Quick answer

P1D32 is identified in the verified Mitsubishi service bulletin as an on-board charger EEPROM failure. For 2012–2013 Mitsubishi i-MiEV vehicles in the US, the bulletin directs a recheck after clearing the DTC and performing a regular charge; if P1D32 resets, replace the on-board charger/DC-DC converter.

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 P1D32 mean?

P1D32 is identified in the verified Mitsubishi service bulletin as an on-board charger EEPROM failure. For 2012–2013 Mitsubishi i-MiEV vehicles in the US, the bulletin directs a recheck after clearing the DTC and performing a regular charge; if P1D32 resets, replace the on-board charger/DC-DC converter.

2. Technical explanation

The verified evidence labels P1D32 as “EEPROM Fail” and places the diagnostic check in the on-board charger. The service procedure is: erase the DTC, perform a regular charge, then check whether the DTC returns. If it returns, the bulletin specifies replacement of the on-board charger/DC-DC converter. If it does not return, the bulletin identifies the condition as intermittent.

3. What system is affected?

On-board charger / DC-DC converter. The verified evidence specifically instructs checking whether P1D32 is set in the on-board charger.

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

  • The verified service bulletin identifies an EEPROM failure for P1D32.
  • If P1D32 returns after clearing the code and performing a regular charge, the bulletin directs replacement of the on-board charger/DC-DC converter.
  • If P1D32 does not return after the recheck procedure, the bulletin identifies the condition as intermittent.

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 includes performing a regular charge as part of diagnostic confirmation.

9. What you can safely do

  • Have a qualified Mitsubishi EV service facility read and clear the DTC, perform the specified regular-charge recheck, and confirm whether P1D32 returns.
  • Do not attempt high-voltage component diagnosis or replacement yourself.

10. Step-by-step troubleshooting

  1. Confirm that P1D32 is set in the on-board charger.
  2. Erase the DTC.
  3. Perform a regular charge.
  4. Check whether P1D32 is set again.
  5. If P1D32 is set again, replace the on-board charger/DC-DC converter according to the service bulletin.
  6. If P1D32 is not set again, treat the condition as intermittent as stated in the bulletin.

11. When to contact service

Contact a Mitsubishi EV-qualified service facility if P1D32 is present, especially if it returns after the bulletin’s clear-code and regular-charge recheck.

12. What the service center may check

  • Verify whether P1D32 is present in the on-board charger.
  • Clear the DTC.
  • Perform a regular charge.
  • Recheck for P1D32 after charging.
  • If the DTC returns, replace the on-board charger/DC-DC converter.

13. Possible repair or resolution

  • Verified repair direction when P1D32 returns after the specified recheck: replace the on-board charger/DC-DC converter.
  • Verified outcome when P1D32 does not return after the recheck: intermittent condition.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mitsubishi TSB-20-54-003, published through NHTSA as Manufacturer Communication PDF 10175779 on 2020-04-22. It contains the P1D32 diagnostic procedure and directs on-board charger/DC-DC converter replacement if the DTC resets after clearing and a regular charge.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

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

19. Frequently asked questions

What does Mitsubishi P1D32 mean?

The verified bulletin identifies P1D32 as “EEPROM Fail” and directs diagnosis in the on-board charger.

What vehicles are covered by the verified evidence?

The supplied applicability evidence identifies US-market 2012–2013 Mitsubishi i-MiEV vehicles.

What should happen if P1D32 returns after it is cleared and the vehicle is regularly charged?

The verified Mitsubishi bulletin directs replacement of the on-board charger/DC-DC converter.

What if P1D32 does not return after the recheck?

The verified bulletin identifies the condition as intermittent.

Is it safe to drive or charge with P1D32?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mitsubishi P1D32: EEPROM Fail TSB-20-54-003 Page 46 of 95 DIAGNOSIS… | EV Diagnostics