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Mitsubishi P1D14

Voltage Command Abnormal . TROUBLE JUDGMENT Check Conditions  While the on board charger is allowed to be charged from the EV-ECU.  While the AC power supply is being input. Judg

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Mitsubishi-qualified EV service provider if P1D14 is present, particularly if it resets after a regular charge.
Confidence95%

Quick answer

P1D14 is a Mitsubishi i-MiEV charging-system DTC for “Voltage Command Abnormal.” Verified evidence applies to 2012–2013 US i-MiEV vehicles and identifies it during AC charging when the EV-ECU permits charging.

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 P1D14 mean?

P1D14 is a Mitsubishi i-MiEV charging-system DTC for “Voltage Command Abnormal.” Verified evidence applies to 2012–2013 US i-MiEV vehicles and identifies it during AC charging when the EV-ECU permits charging.

2. Technical explanation

The DTC is evaluated while the on-board charger is authorized to charge by the EV-ECU and AC power is being supplied. It sets when the charging-voltage command from the EV-ECU exceeds 370 V or is below 0 V.

3. What system is affected?

On-board charging system, including the EV-ECU charging-voltage command and the on-board charger/DC-DC converter.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • P1D14 may be set during AC charging.
  • Additional customer-visible symptoms are not yet established by verified evidence.

6. Possible causes

  • The verified TSB identifies an abnormal EV-ECU charging-voltage command exceeding 370 V or below 0 V as the judgment criterion.
  • Further root causes are 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

  • Have the vehicle evaluated using the applicable Mitsubishi service information.
  • Do not attempt high-voltage diagnosis or component replacement yourself.

10. Step-by-step troubleshooting

  1. The TSB procedure includes clearing the DTC, performing a regular charge, and checking whether the DTC resets.
  2. If P1D14 resets after the regular charge, the TSB directs replacement of the on-board charger/DC-DC converter.
  3. If P1D14 does not reset, the TSB identifies the condition as an intermittent malfunction and refers technicians to intermittent-malfunction diagnostic procedures.

11. When to contact service

Contact a Mitsubishi-qualified EV service provider if P1D14 is present, particularly if it resets after a regular charge.

12. What the service center may check

  • Confirm the applicable vehicle is a 2012–2013 Mitsubishi i-MiEV for the US market.
  • Clear the DTC and perform a regular charge.
  • Check whether P1D14 resets.
  • If it resets, follow TSB-20-54-003 guidance for on-board charger/DC-DC converter replacement.

13. Possible repair or resolution

  • For a DTC that resets following the specified charge check, TSB-20-54-003 directs replacement of the on-board charger/DC-DC converter.
  • For a DTC that does not reset, the TSB classifies it as an intermittent malfunction and directs use of intermittent-malfunction procedures.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 10175779 — Mitsubishi TSB-20-54-003, published April 22, 2020. It contains diagnostic and repair direction for P1D14.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

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

19. Frequently asked questions

What does P1D14 mean?

It means “Voltage Command Abnormal” in the verified Mitsubishi TSB evidence.

When does P1D14 set?

It is monitored while the on-board charger is allowed to charge by the EV-ECU and AC power is being input. The criterion is an EV-ECU charging-voltage command above 370 V or below 0 V.

What repair does the Mitsubishi TSB direct if the code returns?

After clearing the DTC, performing a regular charge, and confirming the DTC resets, the TSB directs replacement of the on-board charger/DC-DC converter.

Does P1D14 mean the vehicle is unsafe to drive or charge?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mitsubishi P1D14: Voltage Command Abnormal . TROUBLE JUDGMENT Check… | EV Diagnostics