Mitsubishi P1A41
Main Drive Lithium-ion Battery current sensor (low) abnormal J udgment Criterion The output voltage of the Main Drive Lithium-ion Battery curr ent sensor (high) is less than 0.3
Quick answer
P1A41 is a Mitsubishi i-MiEV main drive lithium-ion battery current-sensor fault code. Verified applicability is limited to U.S. 2012, 2014, and 2016 i-MiEV models. The documented fail-safe action is to turn off balancer drive.
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 P1A41 mean?
P1A41 is a Mitsubishi i-MiEV main drive lithium-ion battery current-sensor fault code. Verified applicability is limited to U.S. 2012, 2014, and 2016 i-MiEV models. The documented fail-safe action is to turn off balancer drive.
2. Technical explanation
The supplied official Mitsubishi/NHTSA service-bulletin evidence identifies P1A41 as “Main Drive Lithium-ion Battery current sensor (low) abnormal.” The diagnostic criterion states that the output voltage of the main drive lithium-ion battery current sensor (high) is less than 0.3 V or more than 4.7 V. The code may be evaluated after 3 seconds from switching the electric motor switch ON or after 3 seconds from the main drive lithium-ion battery beginning to charge.
3. What system is affected?
Main drive lithium-ion battery current-sensor monitoring and balancer-drive function.
4. How serious is this code?
Not yet established by verified evidence. The official evidence does document a fail-safe response: balancer drive is turned off.
5. Symptoms you may notice
- Balancer drive is turned off as the documented fail-safe and backup function.
- Other driver-visible symptoms are not yet established by verified evidence.
6. Possible causes
- A main drive lithium-ion battery current-sensor output voltage below 0.3 V.
- A main drive lithium-ion battery current-sensor output voltage above 4.7 V.
- Further root 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 provider.
- Do not attempt high-voltage battery or current-sensor repair procedures yourself.
- Note whether the code occurred after the electric motor switch was turned ON or while charging began, as these are documented evaluation conditions.
10. Step-by-step troubleshooting
- A qualified technician can confirm P1A41 with an appropriate diagnostic tool.
- The official criterion to verify is whether the specified current-sensor output voltage is below 0.3 V or above 4.7 V.
- The supplied evidence does not establish additional diagnostic steps or component-level repair instructions.
11. When to contact service
Service is appropriate because this code concerns the main drive lithium-ion battery current-sensor system and the documented fail-safe turns off balancer drive. Urgency, drivability, and charging restrictions are not yet established by verified evidence.
12. What the service center may check
- Confirm the stored DTC and applicable vehicle configuration.
- Check the documented current-sensor output-voltage criterion: less than 0.3 V or more than 4.7 V.
- Confirm whether the condition is present at least 3 seconds after the electric motor switch is turned ON or after main drive battery charging starts.
- Confirm the documented fail-safe status of balancer drive.
13. Possible repair or resolution
- A specific repair resolution is not yet established by the supplied verified evidence.
- High-voltage diagnosis and repair should be performed by qualified personnel.
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: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158408-9999.pdf
- Mitsubishi TSB-19-54-004, published March 13, 2019; NHTSA manufacturer communication MC-10158409: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158409-9999.pdf
- Mitsubishi TSB-19-54-005, published March 13, 2019; NHTSA manufacturer communication MC-10158410: https://static.nhtsa.gov/odi/tsbs/2019/MC-10158410-9999.pdf
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified official source: NHTSA-hosted Mitsubishi manufacturer communications dated March 13, 2019. Verified U.S. applicability: 2012, 2014, and 2016 Mitsubishi i-MiEV.
19. Frequently asked questions
What does P1A41 mean on a Mitsubishi i-MiEV?
It means “Main Drive Lithium-ion Battery current sensor (low) abnormal,” according to the supplied official evidence.
What triggers P1A41?
The documented judgment criterion is a main drive lithium-ion battery current-sensor output voltage below 0.3 V or above 4.7 V.
When can the system evaluate this code?
The supplied evidence states that evaluation occurs after 3 seconds from switching the electric motor switch ON or after 3 seconds from main drive battery charging starting.
What fail-safe action is documented?
The documented fail-safe and backup function is to turn off balancer drive.
Can the vehicle be driven or charged with P1A41?
Not yet established by verified evidence.