Mitsubishi P1A69
CMU12 battery cell high voltage abnormal . TROUBLE JUDGMENT Check Conditions Three seconds elapse after the electric motor switch is turned ON, or three seconds elapse after the
Quick answer
P1A69 is a Mitsubishi DTC for “CMU12 battery cell high voltage abnormal.” Verified applicability is limited to U.S.-market 2012 and 2014 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 P1A69 mean?
P1A69 is a Mitsubishi DTC for “CMU12 battery cell high voltage abnormal.” Verified applicability is limited to U.S.-market 2012 and 2014 Mitsubishi i-MiEV vehicles.
2. Technical explanation
Official Mitsubishi service-bulletin evidence identifies P1A69 as an abnormal high-voltage condition reported for battery Cell Monitoring Unit 12 (CMU12). The supplied evidence states that the judgment conditions include three seconds after the electric motor switch is turned ON, or three seconds after the Main Drive Lithium-ion Battery begins charging. The provided excerpt also states that specified other DTC conditions must not be stored, but the complete list and decision criteria are not established by the supplied verified evidence.
3. What system is affected?
Main Drive Lithium-ion Battery monitoring system, specifically CMU12.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- A stored P1A69 diagnostic trouble code.
- Additional driver-visible symptoms are not yet established by verified evidence.
6. Possible causes
- An abnormal high-voltage condition associated with CMU12 is established by the DTC definition.
- Underlying component failures or wiring 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 Mitsubishi-qualified EV service facility.
- Do not attempt high-voltage battery, CMU, or battery-wiring repairs yourself.
10. Step-by-step troubleshooting
- Use an appropriate diagnostic tool to confirm P1A69 and check for accompanying DTCs.
- A qualified technician should follow the applicable Mitsubishi diagnostic procedure. Specific test steps are not established by the supplied verified evidence.
11. When to contact service
Service is recommended because this code concerns monitoring of the main drive lithium-ion battery. Urgency and vehicle operating restrictions are not yet established by verified evidence.
12. What the service center may check
- Confirm whether P1A69 is current or stored and identify accompanying DTCs.
- Evaluate the condition using the applicable Mitsubishi service information. Detailed inspection criteria are not established by the supplied verified evidence.
13. Possible repair or resolution
- The verified evidence does not establish a specific repair for P1A69.
- Repairs, if needed, should be determined by a qualified technician following Mitsubishi procedures.
14. Affected vehicles
- Mitsubishi i-MiEV · 2012 · US
- Mitsubishi i-MiEV · 2014 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-19-54-003, published March 13, 2019; NHTSA manufacturer communication MC-10158408-9999. The supplied excerpt includes P1A69 and its trouble-judgment conditions.
- Mitsubishi TSB-19-54-004, published March 13, 2019; NHTSA manufacturer communication MC-10158409-9999. The supplied excerpt includes P1A69 and its trouble-judgment conditions.
16. Recall information
- No recall information was supplied as verified evidence.
17. Official manufacturer information
Official evidence: NHTSA-hosted Mitsubishi manufacturer communications TSB-19-54-003 (MC-10158408-9999) and TSB-19-54-004 (MC-10158409-9999), both published March 13, 2019.
19. Frequently asked questions
What does P1A69 mean?
It means “CMU12 battery cell high voltage abnormal.”
Which vehicles are verified as applicable?
U.S.-market 2012 and 2014 Mitsubishi i-MiEV vehicles.
When can P1A69 be judged?
The supplied official evidence states that judgment can occur three seconds after the electric motor switch is turned ON or three seconds after the Main Drive Lithium-ion Battery starts charging, subject to additional DTC conditions described incompletely in the supplied excerpt.
Can the vehicle be driven or charged with P1A69?
Not yet established by verified evidence.