Mitsubishi P101A
ECU. Q: Is the DTC set? YES : Carry out troubleshooting for the DTC. NO : Go to Step 2. STEP 2. Measure the resistance between the G-01 EV charging cable (+) terminal and the G-19
Quick answer
P101A is documented for the 2016 Mitsubishi i-MiEV (US) in EV-ECU diagnostic procedure material. The verified material directs technicians to troubleshoot P101A if it is set; it also references an inspection involving the EV charging cable (+) terminal and main drive lithium-ion battery cable (+) terminal.
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 P101A mean?
P101A is documented for the 2016 Mitsubishi i-MiEV (US) in EV-ECU diagnostic procedure material. The verified material directs technicians to troubleshoot P101A if it is set; it also references an inspection involving the EV charging cable (+) terminal and main drive lithium-ion battery cable (+) terminal.
2. Technical explanation
The supplied official NHTSA manufacturer communication, Mitsubishi TSB-19-54-005, includes EV-ECU diagnosis instructions: use scan tool MB991958 to check whether P1019, P101A, P102E, or P102F is set. If a listed DTC is set, the instruction is to carry out troubleshooting for that DTC. The excerpt then proceeds to a resistance measurement between the G-01 EV charging cable (+) terminal and the G-19 main drive lithium-ion battery cable (+) terminal. The provided evidence does not establish the complete diagnostic criteria, resistance specification, or final fault determination for P101A.
3. What system is affected?
EV-ECU; the verified procedure also references the EV charging cable and main drive lithium-ion battery cable.
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
- The official TSB evidence references malfunction of the EV charging cable (quick charging) and malfunction of a quick charger in associated diagnostic material. It does not establish either item as the specific cause of P101A.
- 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 by qualified service personnel using the applicable EV-ECU diagnostic procedure.
- Do not perform high-voltage cable or resistance testing yourself.
10. Step-by-step troubleshooting
- Qualified technicians are directed in the verified procedure to use scan tool MB991958 and check whether P1019, P101A, P102E, or P102F is set in the EV-ECU.
- When P101A is set, the verified instruction is to carry out troubleshooting for that DTC.
- The supplied procedure excerpt references measuring resistance between the G-01 EV charging cable (+) terminal and G-19 main drive lithium-ion battery cable (+) terminal. The excerpt does not provide enough verified information to state the required value or pass/fail result.
11. When to contact service
Contact a Mitsubishi-qualified EV service facility for diagnosis. The cited procedure involves high-voltage-system components.
12. What the service center may check
- Confirm EV-ECU DTC status with scan tool MB991958.
- Follow the applicable P101A troubleshooting procedure.
- Perform any high-voltage-related inspection only under the manufacturer's service safety procedures.
- Inspect the relevant charging-cable and battery-cable circuit as directed by the complete service procedure.
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 through NHTSA as Manufacturer Communication PDF 10158410 on 2019-03-13. It contains EV-ECU diagnostic material referencing P101A.
16. Recall information
No recall relationship is established by 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 P101A mean on a Mitsubishi i-MiEV?
The supplied verified record identifies P101A as an EV-ECU DTC and points to Mitsubishi EV-ECU troubleshooting instructions. A precise fault definition is not established by the provided evidence.
Which vehicle is covered by the verified evidence?
The supplied applicability record identifies the 2016 Mitsubishi i-MiEV in the US.
Can I test the charging and battery cables myself?
No high-voltage testing instructions are provided here. The official material labels service of high-voltage system components as dangerous; use qualified service personnel.
Does P101A prove that the quick charger or charging cable has failed?
No. The supplied material references quick-charging cable and quick-charger malfunctions in associated diagnostic content, but does not establish either as the specific cause of P101A.