Mitsubishi U11A0
CMU01 time-out, U11A1: CMU02 time-out, U11A2: CMU03 time-out, U11A3: CMU04 time-out, U11A4: CMU05 time-out, U11A5: CMU06 time-out, U11A6: CMU07 time-out, U11A7: CMU08 time-out, U11
Quick answer
U11A0 is a Mitsubishi i-MiEV Battery Management Unit (BMU) diagnostic trouble code for a CMU01 time-out. Official Mitsubishi service information also describes it as a CMU01 CAN timeout.
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 U11A0 mean?
U11A0 is a Mitsubishi i-MiEV Battery Management Unit (BMU) diagnostic trouble code for a CMU01 time-out. Official Mitsubishi service information also describes it as a CMU01 CAN timeout.
2. Technical explanation
Official Mitsubishi service material groups U11A0 with CMU communication timeout codes U11A1 through U11AB. U11A0 specifically identifies CMU01. The supplied evidence establishes that the BMU records this code after the stated timeout check condition; it does not establish a component-level root cause from the excerpts provided.
3. What system is affected?
Battery Management Unit (BMU) communication with CMU01. The expanded name of CMU is not established by the supplied verified evidence.
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 CMU01 time-out / CAN timeout is established by official Mitsubishi service information.
- A 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 communication-system repairs yourself.
- Have the stored BMU diagnostic code assessed by a qualified Mitsubishi EV service provider.
10. Step-by-step troubleshooting
- Official Mitsubishi service information instructs use of scan tool MB991958 to confirm whether the DTC is set in the BMU.
- The documented reconfirmation procedure is to erase stored DTCs, switch the electric motor switch from LOCK (OFF) to ON, and check whether the DTC returns.
- If the DTC does not return during that documented check, the referenced procedure states that the check is complete. Further diagnostic steps are not established by the supplied evidence.
11. When to contact service
Contact a qualified Mitsubishi EV service provider if U11A0 is stored or returns after the official reconfirmation check.
12. What the service center may check
- Confirm U11A0 in the BMU using scan tool MB991958.
- Clear the stored DTCs.
- Cycle the electric motor switch from LOCK (OFF) to ON.
- Recheck whether U11A0 is stored in the BMU.
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.
- Mitsubishi TSB-19-54-004, published March 13, 2019; NHTSA manufacturer communication MC-10158409.
- Mitsubishi TSB-19-54-005, published March 13, 2019; NHTSA manufacturer communication MC-10158410.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified applicability is Mitsubishi i-MiEV, U.S. market, model years 2012, 2014, and 2016. Official sources: NHTSA-hosted Mitsubishi TSB-19-54-003 (MC-10158408), TSB-19-54-004 (MC-10158409), and TSB-19-54-005 (MC-10158410), all published March 13, 2019.
19. Frequently asked questions
What does U11A0 mean?
It means CMU01 time-out. One official Mitsubishi source calls it CMU01 CAN Timeout.
Which vehicles are verified as applicable?
Mitsubishi i-MiEV U.S. model years 2012, 2014, and 2016 are established by the supplied evidence.
Can I drive or charge with U11A0?
Not yet established by verified evidence.
What does the official check involve?
The supplied Mitsubishi material calls for confirming the DTC in the BMU, clearing it, switching from LOCK (OFF) to ON, and checking whether it returns.