Mitsubishi P1A8A
ion battery starts to be charged. Either one
Quick answer
P1A8A is identified in verified Mitsubishi service information as the CMU09 Battery Temperature Sensor DTC for the 2016 Mitsubishi i-MiEV (U.S.).
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 P1A8A mean?
P1A8A is identified in verified Mitsubishi service information as the CMU09 Battery Temperature Sensor DTC for the 2016 Mitsubishi i-MiEV (U.S.).
2. Technical explanation
The verified TSB identifies P1A8A as “CMU09 Battery Temperature Sensor.” Its listed trouble-judgment check conditions include: three seconds after the electric motor switch is turned ON, or three seconds after the main drive lithium-ion battery starts charging. The supplied evidence does not establish the complete fault criteria, diagnostic procedure, or repair procedure.
3. What system is affected?
Main drive lithium-ion battery monitoring: CMU09 battery temperature sensor.
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
- A CMU09 battery temperature sensor-related DTC condition is established by verified evidence. The specific underlying cause 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
- Do not attempt high-voltage battery or sensor repairs yourself.
- Arrange diagnosis by a qualified Mitsubishi EV service technician.
- Record whether the code occurred after the electric motor switch was turned ON or after charging began, if this information is available.
10. Step-by-step troubleshooting
- Use appropriate manufacturer diagnostic information to confirm P1A8A and assess the CMU09 battery temperature sensor-related condition.
- Further troubleshooting steps are not yet established by verified evidence.
11. When to contact service
Service need is not explicitly established by the supplied evidence; however, this DTC concerns the main drive lithium-ion battery monitoring system and should be evaluated by a qualified Mitsubishi EV service technician.
12. What the service center may check
- Confirm DTC P1A8A using suitable diagnostic equipment.
- Inspect and test procedures beyond confirmation are not yet established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Mitsubishi i-MiEV · 2016 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-19-54-005, published March 13, 2019, includes P1A8A in its lithium-ion battery DTC section and identifies it as “CMU09 Battery Temperature Sensor.”
16. Recall information
No recall relationship is established by verified evidence.
17. Official manufacturer information
Verified official source: NHTSA Manufacturer Communication PDF 10158410, Mitsubishi TSB-19-54-005: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158410-9999.pdf
19. Frequently asked questions
What does Mitsubishi code P1A8A mean?
Verified Mitsubishi service information identifies P1A8A as “CMU09 Battery Temperature Sensor.”
Which vehicle is supported by the supplied evidence?
The supplied applicability evidence supports the 2016 Mitsubishi i-MiEV in the U.S.
When can P1A8A be evaluated?
The TSB lists check conditions of three seconds after the electric motor switch is turned ON, or three seconds after the main drive lithium-ion battery starts charging.
Can I drive or charge with P1A8A?
Not yet established by verified evidence.