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Mitsubishi P1C13

DCDC A/D Converter . TROUBLE JUDGMENT Check Condition  The EV-ECU allows the DC-DC converter to operate. Judgment Criterion  When it is detected that the AD conversion module is

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService is appropriate because the applicable Mitsubishi TSB directs on-board charger/DC-DC converter replacement when P1C13 is confirmed. A qualified EV technician should perform the diagnosis and repair.
Confidence95%

Quick answer

P1C13 is a Mitsubishi i-MiEV DTC for an abnormal DC-DC converter A/D conversion module. Verified TSB information states that, when this DTC is confirmed, the DC-DC converter output 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 P1C13 mean?

P1C13 is a Mitsubishi i-MiEV DTC for an abnormal DC-DC converter A/D conversion module. Verified TSB information states that, when this DTC is confirmed, the DC-DC converter output is stopped.

2. Technical explanation

The verified judgment condition is that the EV-ECU allows the DC-DC converter to operate. The DTC is set when the A/D conversion module is detected as abnormal, including an A/D conversion-module conversion-time timeout. The supplied evidence does not establish further diagnostic causes beyond this description.

3. What system is affected?

DC-DC converter / on-board charger-DC-DC converter assembly and EV-ECU monitoring.

4. How serious is this code?

Not yet established by verified evidence. However, the verified fail-safe action is that DC-DC converter output is stopped.

5. Symptoms you may notice

  • DC-DC converter output is stopped when P1C13 is set.

6. Possible causes

  • An abnormal A/D conversion module is detected, including a conversion-time timeout in that module.
  • The supplied TSB directs replacement of the on-board charger/DC-DC converter if the DTC is confirmed after its test procedure.
  • Further 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

  • Arrange diagnosis by a qualified Mitsubishi EV service facility.
  • Do not attempt high-voltage component repair or disassembly.
  • Use the applicable Mitsubishi diagnostic procedure to determine whether P1C13 remains set.

10. Step-by-step troubleshooting

  1. The supplied TSB procedure checks whether the DTC is set after a temporary operation step.
  2. If P1C13 is set, the TSB instructs replacement of the on-board charger/DC-DC converter.
  3. If P1C13 is not set, the TSB identifies the condition as an intermittent malfunction and refers to Mitsubishi procedures for intermittent-malfunction diagnosis.

11. When to contact service

Service is appropriate because the applicable Mitsubishi TSB directs on-board charger/DC-DC converter replacement when P1C13 is confirmed. A qualified EV technician should perform the diagnosis and repair.

12. What the service center may check

  • Confirm whether P1C13 is currently set using the applicable Mitsubishi procedure.
  • Follow TSB-20-54-003, including its referenced on-board charger removal and installation procedure when replacement is indicated.
  • If the code does not reset, follow the referenced Mitsubishi intermittent-malfunction diagnostic guidance.

13. Possible repair or resolution

  • If P1C13 is confirmed as set during the TSB procedure, replace the on-board charger/DC-DC converter.
  • If P1C13 is not set during the procedure, treat it as an intermittent malfunction per the referenced Mitsubishi guidance.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mitsubishi TSB-20-54-003, published April 22, 2020; NHTSA manufacturer communication MC-10175779-9999. It includes the P1C13 diagnostic procedure and directs on-board charger/DC-DC converter replacement when the DTC is confirmed.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

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

19. Frequently asked questions

What does P1C13 mean?

It indicates that the DC-DC converter A/D conversion module was detected as abnormal, including an A/D conversion-time timeout.

What happens when P1C13 sets?

The verified fail-safe function stops DC-DC converter output.

What repair does Mitsubishi specify?

Under the supplied TSB procedure, if P1C13 is confirmed as set, replace the on-board charger/DC-DC converter. If it is not set, Mitsubishi identifies an intermittent malfunction and refers to its intermittent-malfunction diagnostic guidance.

Which vehicles are covered by the supplied evidence?

The verified applicability is U.S.-market 2012–2013 Mitsubishi i-MiEV vehicles.

20. Sources & verification

Verified
Mitsubishi P1C13: DCDC A/D Converter . TROUBLE JUDGMENT Check… | EV Diagnostics