Mitsubishi P1A30
ECU. Q: Is the diagnostic trouble code stored? YES : Carry out troubleshooting for diagnostic trouble code No. P1A3 0, P1A31 or P1B33. NO : Go to Step 2. STEP 2. Scan tool MB991958
Quick answer
For a 2012 Mitsubishi i-MiEV (US), P1A30 is referenced in Mitsubishi TSB-19-54-003 as a DTC to check in the EV-ECU with scan tool MB991958. If stored, the bulletin directs technicians to perform DTC-specific troubleshooting.
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 P1A30 mean?
For a 2012 Mitsubishi i-MiEV (US), P1A30 is referenced in Mitsubishi TSB-19-54-003 as a DTC to check in the EV-ECU with scan tool MB991958. If stored, the bulletin directs technicians to perform DTC-specific troubleshooting.
2. Technical explanation
Verified evidence identifies P1A30 within an EV-ECU diagnostic procedure. The procedure says to use scan tool MB991958 to determine whether P1A30, P1A31, or P1A33 is stored. If the DTC is stored, it directs troubleshooting for the applicable DTC. If not stored, it proceeds to charging-related data-list checks, including the domestic power-supply facility, regular charging cable, and service-data items. The supplied evidence does not establish a component-level definition for P1A30.
3. What system is affected?
EV-ECU; the source is within a Battery Management Unit (BMU), electric motor unit, and main drive lithium-ion battery diagnostic section.
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
- 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 EV-ECU checked with Mitsubishi scan tool MB991958 or equivalent authorized diagnostic equipment.
- Use the regular charging cable and domestic power supply only as directed by the vehicle and charging-equipment instructions.
- Do not attempt high-voltage battery, BMU, EV-ECU, or charging-system repairs yourself.
10. Step-by-step troubleshooting
- Use scan tool MB991958 to check whether P1A30, P1A31, or P1A33 is stored in the EV-ECU.
- If a listed DTC is stored, carry out the applicable DTC-specific troubleshooting procedure.
- If no listed DTC is stored, the bulletin proceeds to checks of the domestic power supply facility, regular charging cable, and scan-tool service data.
11. When to contact service
Contact a Mitsubishi dealer or qualified EV service provider for diagnosis, particularly if P1A30 is stored in the EV-ECU.
12. What the service center may check
- Confirm stored EV-ECU DTCs using scan tool MB991958.
- Check the domestic power supply facility.
- Connect and assess the regular charging cable.
- Review applicable scan-tool service-data items.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Mitsubishi i-MiEV · 2012 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-19-54-003, published March 13, 2019, includes a diagnostic procedure that references P1A30 for the 2012 US Mitsubishi i-MiEV.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
NHTSA manufacturer communication MC-10158408-9999: Mitsubishi TSB-19-54-003, https://static.nhtsa.gov/odi/tsbs/2019/MC-10158408-9999.pdf
19. Frequently asked questions
What does P1A30 mean on a 2012 Mitsubishi i-MiEV?
The supplied verified evidence shows P1A30 as an EV-ECU DTC referenced in Mitsubishi TSB-19-54-003. A component-level meaning is not yet established by verified evidence.
How is P1A30 checked?
The bulletin directs use of scan tool MB991958 to check whether P1A30 is stored in the EV-ECU.
Is P1A30 related to charging checks?
The bulletin's procedure proceeds to checks of the domestic power supply facility, regular charging cable, and service data when the listed EV-ECU DTCs are not stored. The supplied evidence does not establish that P1A30 itself identifies a charging-component fault.