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Mitsubishi P1AF2

ECU. Q: Is the DTC stored? YES : Carry out troubleshooting for the DTC. NO : Go to Step 4. STEP 4. Use scan tool MB991958 to confirm a DTC of other systems Check if the DTC is stor

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Mitsubishi dealer or qualified EV service facility for diagnosis using the applicable Mitsubishi procedure. The supplied evidence does not establish whether immediate service is required.
Confidence95%

Quick answer

For specified U.S. Mitsubishi i-MiEV model years, verified Mitsubishi service-bulletin evidence identifies P1AF2 as a code considered during EV-ECU diagnostic checks. The supplied evidence does not establish a component-level definition, cause, symptom, driving status, or charging status for P1AF2.

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 P1AF2 mean?

For specified U.S. Mitsubishi i-MiEV model years, verified Mitsubishi service-bulletin evidence identifies P1AF2 as a code considered during EV-ECU diagnostic checks. The supplied evidence does not establish a component-level definition, cause, symptom, driving status, or charging status for P1AF2.

2. Technical explanation

The verified diagnostic procedure uses scan tool MB991958 to check for DTCs in the EV-ECU and A/C control unit. In the EV-ECU check, P1AF2 is specifically excluded along with P0AA1 and P1A17 when looking for other stored/set DTCs. If another EV-ECU DTC is present, the procedure directs troubleshooting for that DTC. If a DTC is present in the A/C control unit, it directs troubleshooting under Group 55. The supplied excerpts end before the subsequent step, so the complete P1AF2 diagnostic path is not established by verified evidence.

3. What system is affected?

EV-ECU is referenced in the verified procedure. The A/C control unit is also checked as part of the procedure. A specific failed system or component for P1AF2 is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level to P1AF2.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • 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 vehicle evaluated using the applicable Mitsubishi diagnostic procedure and scan tool MB991958.
  • If additional DTCs are stored in the EV-ECU or A/C control unit, have those codes diagnosed as directed by the applicable service information.
  • Do not attempt high-voltage diagnosis or repair without appropriate manufacturer procedures and qualified service support.

10. Step-by-step troubleshooting

  1. Use scan tool MB991958 to check whether DTCs are stored/set after cycling the electric motor switch from LOCK (OFF) to ON and temporarily to START, as described in the supplied bulletin excerpts.
  2. Check the EV-ECU for DTCs other than P0AA1, P1A17, and P1AF2. If another DTC is present, carry out troubleshooting for that DTC.
  3. If no other applicable EV-ECU DTC is present, check the A/C control unit for DTCs.
  4. If an A/C control-unit DTC is present, the verified procedure directs troubleshooting for that code with reference to Group 55.
  5. Further P1AF2-specific steps are not yet established by verified evidence because the supplied excerpts are incomplete.

11. When to contact service

Contact a Mitsubishi dealer or qualified EV service facility for diagnosis using the applicable Mitsubishi procedure. The supplied evidence does not establish whether immediate service is required.

12. What the service center may check

  • Retrieve stored or set DTCs with scan tool MB991958.
  • Check the EV-ECU for DTCs other than P0AA1, P1A17, and P1AF2.
  • Check the A/C control unit for DTCs.
  • Follow the applicable troubleshooting procedure for any additional DTC found.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • TSB-19-54-003, published March 13, 2019; NHTSA manufacturer communication MC-10158408.
  • TSB-19-54-004, published March 13, 2019; NHTSA manufacturer communication MC-10158409.
  • 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 official manufacturer-communication evidence is available through NHTSA: MC-10158408, MC-10158409, and MC-10158410, each published March 13, 2019.

19. Frequently asked questions

What does P1AF2 mean?

The supplied evidence does not provide a component-level definition for P1AF2. It shows that P1AF2 is one of the EV-ECU codes specifically excluded when checking for other EV-ECU DTCs.

Which vehicles are supported by the verified evidence?

Mitsubishi i-MiEV vehicles for the 2012, 2014, and 2016 model years in the U.S. are listed in the supplied applicability data.

Does P1AF2 mean the A/C control unit has failed?

Not yet established by verified evidence. The procedure calls for checking the A/C control unit for its own DTCs, but it does not identify P1AF2 as an A/C-control-unit failure.

Can I drive or charge with P1AF2?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mitsubishi P1AF2: ECU. Q: Is the DTC stored? YES : Carry out… | EV Diagnostics