Verified EV diagnostic knowledge page

Mitsubishi P1ABD

ion battery starts to be charged.  Either one of the foll

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService need is not yet established by verified evidence. If P1ABD is present, a qualified Mitsubishi EV service facility can evaluate it using manufacturer procedures.
Confidence95%

Quick answer

P1ABD is identified in verified Mitsubishi service-bulletin evidence as “CMU09 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 P1ABD mean?

P1ABD is identified in verified Mitsubishi service-bulletin evidence as “CMU09 Battery Low Temperature.” It applies to the 2016 Mitsubishi i‑MiEV in the US.

2. Technical explanation

The verified NHTSA-hosted Mitsubishi bulletin lists P1ABD as a low-temperature diagnostic trouble code for CMU09, a battery-cell monitoring unit designation. The available evidence states that the judgment can occur 3 seconds after the electric motor switch is turned ON or 3 seconds after main drive lithium-ion battery charging begins. The remainder of the judgment criteria is not included in the supplied evidence.

3. What system is affected?

Main drive lithium-ion battery monitoring; specifically CMU09.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • A stored P1ABD diagnostic trouble code may be present.
  • Additional vehicle symptoms are not yet established by verified evidence.

6. Possible causes

  • Low battery temperature reported in relation to CMU09.
  • Other 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

  • Have the code assessed by a qualified Mitsubishi EV service facility.
  • Record whether the code occurred after the vehicle was switched on or shortly after charging began.
  • Do not attempt high-voltage battery diagnosis or repair yourself.

10. Step-by-step troubleshooting

  1. Use appropriate manufacturer diagnostic procedures to confirm P1ABD and review associated fault information.
  2. The specific diagnostic sequence and complete pass/fail criteria are not included in the supplied verified evidence.

11. When to contact service

Service need is not yet established by verified evidence. If P1ABD is present, a qualified Mitsubishi EV service facility can evaluate it using manufacturer procedures.

12. What the service center may check

  • Confirm DTC P1ABD.
  • Review CMU09-related battery-temperature information using manufacturer diagnostic equipment.
  • Further service checks are not yet established by verified evidence.

13. Possible repair or resolution

  • A specific repair is not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mitsubishi TSB-19-54-005, published March 13, 2019 and hosted by NHTSA as manufacturer communication MC-10158410, lists P1ABD as “CMU09 Battery Low Temperature.”

16. Recall information

  • No recall information was supplied in the verified evidence.

17. Official manufacturer information

Verified 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 P1ABD mean?

Verified bulletin evidence identifies P1ABD as “CMU09 Battery Low Temperature.”

Which vehicle is covered by the supplied applicability data?

The supplied applicability data identifies the US-market 2016 Mitsubishi i‑MiEV.

When can P1ABD be judged?

The supplied bulletin excerpt states that judgment may occur 3 seconds after the electric motor switch is turned ON or 3 seconds after main drive lithium-ion battery charging starts.

Is it safe to drive or charge with P1ABD?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mitsubishi P1ABD: ion battery starts to be charged.  Either one of… | EV Diagnostics