Mitsubishi P1A5C
CMU11 battery cell low voltage abnormal, P1A5D: CMU12 battery cell low voltage abnormal . TROUBLE JUDGMENT Check Conditions Three seconds elapse after the electric motor switch i
Quick answer
P1A5C is identified in verified Mitsubishi service-bulletin evidence as “CMU11 battery cell low voltage abnormal.” It is applicable to the 2014 Mitsubishi i-MiEV in the US. Driving, charging, urgency, symptoms, and repair action are not yet established by verified evidence provided.
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 P1A5C mean?
P1A5C is identified in verified Mitsubishi service-bulletin evidence as “CMU11 battery cell low voltage abnormal.” It is applicable to the 2014 Mitsubishi i-MiEV in the US. Driving, charging, urgency, symptoms, and repair action are not yet established by verified evidence provided.
2. Technical explanation
The verified NHTSA-hosted Mitsubishi communication TSB-19-54-004 identifies P1A5C as a diagnostic trouble code for an abnormal low-voltage condition associated with battery Cell Monitoring Unit 11 (CMU11). The supplied evidence states that the trouble judgment may occur after three seconds with the electric motor switch ON, or after three seconds after the main drive lithium-ion battery begins charging. The excerpt also indicates that additional conditions apply, but they are incomplete in the supplied evidence.
3. What system is affected?
Main drive lithium-ion battery monitoring, specifically CMU11.
4. How serious is this code?
Unknown. Not yet established by verified evidence.
5. Symptoms you may notice
- Not yet established by verified evidence.
6. Possible causes
- An abnormal low-voltage condition associated with CMU11 is identified by the verified evidence.
- The underlying cause of the condition is not yet established by verified evidence.
7. Can I still drive the vehicle?
Unknown. Not yet established by verified evidence.
8. Can I charge the vehicle?
Unknown. Not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis by a qualified Mitsubishi EV service provider.
- Do not attempt high-voltage battery, cell-monitoring-unit, or battery-pack repair yourself.
10. Step-by-step troubleshooting
- A qualified technician should retrieve and document all stored diagnostic trouble codes.
- Further diagnostic steps are not yet established by the supplied verified evidence.
11. When to contact service
Contact a qualified Mitsubishi EV service provider for diagnosis of P1A5C.
12. What the service center may check
- Confirm P1A5C is stored.
- Inspect and diagnose according to the applicable Mitsubishi service information. Specific checks are not yet established by the supplied verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Mitsubishi i-MiEV · 2014 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-19-54-004, published March 13, 2019, is listed in the supplied NHTSA evidence and includes P1A5C among CMU battery-cell low-voltage-abnormal codes.
16. Recall information
- No recall information is established by the supplied verified evidence.
17. Official manufacturer information
Verified source: NHTSA Manufacturer Communication PDF 10158409, Mitsubishi TSB-19-54-004: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158409-9999.pdf
19. Frequently asked questions
What does P1A5C mean on a Mitsubishi i-MiEV?
Verified evidence identifies P1A5C as “CMU11 battery cell low voltage abnormal.”
Which vehicle is covered by the supplied applicability evidence?
The supplied evidence applies P1A5C to the 2014 Mitsubishi i-MiEV in the US.
Can P1A5C set while charging?
The verified excerpt states that trouble judgment can occur three seconds after the main drive lithium-ion battery starts charging, subject to additional conditions not fully included in the supplied evidence.
Is it safe to drive or charge with P1A5C?
Not yet established by verified evidence.