Mitsubishi P1A80
CMU11 battery cell voltage sensor abnormal, P1A81: CMU12 battery cell voltage sensor abnormal . TROUBLE JUDGMENT Check Conditions Three seconds elapse after the electric motor sw
Quick answer
P1A80 identifies an abnormal battery-cell-voltage-sensor condition at CMU11 on applicable Mitsubishi i-MiEV vehicles.
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 P1A80 mean?
P1A80 identifies an abnormal battery-cell-voltage-sensor condition at CMU11 on applicable Mitsubishi i-MiEV vehicles.
2. Technical explanation
Verified Mitsubishi service-bulletin evidence identifies P1A80 as “CMU11 battery cell voltage sensor abnormal.” The diagnostic judgment can occur three seconds after the electric motor switch is turned ON or three seconds after the main drive lithium-ion battery begins charging. The supplied evidence also states that specified other DTC conditions must not be set, but does not provide the complete list or diagnostic thresholds.
3. What system is affected?
Main drive lithium-ion battery cell-voltage monitoring, specifically CMU11.
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
- An abnormal CMU11 battery cell voltage sensor condition is established by verified evidence. The underlying cause of that abnormal condition is 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 battery or cell-voltage-sensor repairs yourself.
10. Step-by-step troubleshooting
- Confirm the stored DTC using appropriate diagnostic equipment.
- Verify whether the DTC is present after the electric motor switch has been ON for at least three seconds or after main drive lithium-ion battery charging has begun for at least three seconds.
- Further diagnostic steps are not yet established by the supplied verified evidence.
11. When to contact service
Service is appropriate because P1A80 concerns monitoring within the main drive lithium-ion battery. The supplied evidence does not establish whether service is immediately required.
12. What the service center may check
- Read and document P1A80 and any accompanying DTCs.
- Assess the CMU11 battery cell voltage sensor condition using applicable Mitsubishi service information.
- The exact inspection procedure, measurements, and pass/fail criteria 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 · 2012 · US
- Mitsubishi i-MiEV · 2014 · US
- Mitsubishi i-MiEV · 2016 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-19-54-003, published March 13, 2019; NHTSA manufacturer communication MC-10158408-9999. Its supplied summary includes P1A80 as CMU11 battery cell voltage sensor abnormal.
- Mitsubishi TSB-19-54-004, published March 13, 2019; NHTSA manufacturer communication MC-10158409-9999. Its supplied summary includes P1A80 as CMU11 battery cell voltage sensor abnormal.
- Mitsubishi TSB-19-54-005, published March 13, 2019; NHTSA manufacturer communication MC-10158410-9999. Its supplied summary includes P1A80 as CMU11 cell voltage sensor.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Applicable verified database entries identify US-market Mitsubishi i-MiEV model years 2012, 2014, and 2016. Source: NHTSA-hosted Mitsubishi manufacturer communications TSB-19-54-003, TSB-19-54-004, and TSB-19-54-005, published March 13, 2019.
19. Frequently asked questions
What does P1A80 mean?
It means CMU11 battery cell voltage sensor abnormal, according to the supplied official Mitsubishi bulletin evidence.
When can P1A80 be evaluated?
The supplied evidence states that its diagnostic judgment conditions include three seconds after the electric motor switch is turned ON or three seconds after main drive lithium-ion battery charging starts.
Which vehicles are verified as applicable?
The supplied database establishes applicability for US-market Mitsubishi i-MiEV model years 2012, 2014, and 2016.
Can I drive or charge with P1A80?
Not yet established by verified evidence.