Mitsubishi P1ABF
ion battery starts to be charged. Either one of the following diagnostic trouble codes is not set . a. P1AA8: Bat-CAN signal time
Quick answer
P1ABF is identified in verified Mitsubishi evidence as “CMU11 Battery Low Temperature.” It applies to the 2016 Mitsubishi i-MiEV in the US.
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 P1ABF mean?
P1ABF is identified in verified Mitsubishi evidence as “CMU11 Battery Low Temperature.” It applies to the 2016 Mitsubishi i-MiEV in the US.
2. Technical explanation
The verified Mitsubishi TSB evidence states that P1ABF is associated with CMU11 Battery Low Temperature. The listed trouble-judgment conditions include: three seconds after the electric motor switch is turned ON, or three seconds after the main drive lithium-ion battery starts charging; and P1AA8 (Bat-CAN signal time) is not set. The supplied evidence does not establish the complete diagnostic logic, threshold temperature, or a specific repair for P1ABF.
3. What system is affected?
Main drive lithium-ion battery monitoring; specifically CMU11 (Cell Monitoring Unit 11) battery-temperature reporting, as named in the verified TSB 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
- Low battery temperature reported for CMU11, as identified by the verified TSB evidence.
- Any further root 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
- Avoid attempting high-voltage battery or CMU repairs yourself.
- Have the vehicle evaluated by a qualified Mitsubishi EV service provider if P1ABF is present.
10. Step-by-step troubleshooting
- Confirm the stored DTC using suitable diagnostic equipment.
- Review whether P1ABF set at least three seconds after the electric motor switch was turned ON or at least three seconds after main drive lithium-ion battery charging began, consistent with the listed TSB conditions.
- Check whether P1AA8 (Bat-CAN signal time) is set, because the verified TSB evidence lists P1AA8 as a condition that must not be set for the stated P1ABF trouble judgment.
- Further diagnostic steps are not yet established by verified evidence.
11. When to contact service
Contact a qualified Mitsubishi EV service provider for diagnosis. Service necessity is not explicitly established by the supplied evidence, but high-voltage battery diagnosis should be performed by qualified personnel.
12. What the service center may check
- Retrieve and document P1ABF and any accompanying DTCs.
- Check for P1AA8, because the TSB’s P1ABF trouble-judgment conditions specify that P1AA8 must not be set.
- Evaluate CMU11 battery-temperature data using manufacturer-approved procedures. Specific test procedures are not included in the supplied 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, is listed in the supplied official NHTSA manufacturer communication evidence. It identifies P1ABF as CMU11 Battery Low Temperature and lists applicable trouble-judgment conditions.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
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 P1ABF mean?
Verified TSB evidence identifies P1ABF as CMU11 Battery Low Temperature.
Which vehicle is covered by the supplied evidence?
The supplied applicability record identifies the 2016 Mitsubishi i-MiEV, US market.
When can P1ABF be judged?
The TSB evidence lists conditions of three seconds after the electric motor switch is turned ON or three seconds after the main drive lithium-ion battery starts charging, with P1AA8 not set.
Is it safe to drive or charge with P1ABF?
Not yet established by verified evidence.