Mitsubishi P1C16
Is diagnostic trouble code set? YES : Carry out troubleshooting for DTC No. P1C16 (Refer to attached sheet 16 ). NO : Go to Step 3. STEP 3. Use scan tool MB991958 to confirm a DTC
Quick answer
For 2012–2013 Mitsubishi i-MiEV vehicles in the US, verified Mitsubishi service information directs technicians to troubleshoot DTC P1C16 using the attached diagnostic sheet 16 when the code is confirmed with scan tool MB991958.
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 P1C16 mean?
For 2012–2013 Mitsubishi i-MiEV vehicles in the US, verified Mitsubishi service information directs technicians to troubleshoot DTC P1C16 using the attached diagnostic sheet 16 when the code is confirmed with scan tool MB991958.
2. Technical explanation
The supplied official NHTSA-hosted Mitsubishi TSB evidence identifies P1C16 within a diagnostic sequence. The sequence first checks the CAN bus line. If the CAN bus check result is not normal, the instruction is to repair the CAN bus line using the CAN Bus Diagnostics Table. If the CAN bus check is normal, the technician uses scan tool MB991958 to check other systems for DTC P1C16. When P1C16 is set, the instruction is to carry out troubleshooting for P1C16 using attached sheet 16. The supplied evidence does not provide the meaning, failure mode, or component-level root cause of P1C16.
3. What system is affected?
Not yet established by verified evidence. The verified procedure includes CAN bus line diagnostics and checks for EV-ECU system DTCs, but it does not establish that P1C16 itself belongs to either system.
4. How serious is this code?
Unknown. The verified evidence does not assign a severity level.
5. Symptoms you may notice
- Not yet established by verified evidence.
6. Possible causes
- An abnormal CAN bus line check result is addressed in the diagnostic sequence, but the evidence does not establish it as the cause of P1C16.
- The specific cause of P1C16 is not provided in the supplied 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 Mitsubishi diagnostic procedure and scan tool MB991958 or equivalent manufacturer-capable equipment.
- Do not perform high-voltage system repairs without qualified EV service training and the applicable Mitsubishi service information.
10. Step-by-step troubleshooting
- Check the CAN bus line as directed by the Mitsubishi diagnostic sequence.
- If the CAN bus line check result is not normal, repair the CAN bus line according to the CAN Bus Diagnostics Table.
- If the CAN bus line check result is normal, use scan tool MB991958 to confirm whether P1C16 is set in other systems.
- If P1C16 is set, carry out the P1C16 diagnostic procedure in attached sheet 16.
- The detailed content of attached sheet 16 is not included in the supplied evidence.
11. When to contact service
Service is recommended because the verified procedure requires manufacturer diagnostic steps and refers to an attached troubleshooting sheet not provided in the evidence.
12. What the service center may check
- Perform CAN bus line diagnosis.
- Use scan tool MB991958 to check other systems for DTC P1C16.
- If P1C16 is present, follow attached sheet 16.
- Check the EV-ECU system if an EV-ECU system DTC is set, as directed by the diagnostic sequence.
13. Possible repair or resolution
- Repair the CAN bus line if its diagnostic check result is not normal.
- For confirmed P1C16, the specific repair resolution is not yet established by the supplied verified evidence because attached sheet 16 was not provided.
14. Affected vehicles
- Mitsubishi i-MiEV · 2012–2013 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-20-54-003, published April 22, 2020, is the supplied official manufacturer communication. It contains the cited diagnostic sequence and directs confirmed P1C16 diagnosis to attached sheet 16.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10175779, Mitsubishi TSB-20-54-003, published April 22, 2020: https://static.nhtsa.gov/odi/tsbs/2020/MC-10175779-9999.pdf
19. Frequently asked questions
What does P1C16 mean on a Mitsubishi i-MiEV?
The supplied verified evidence does not provide a component or failure-description meaning for P1C16. It directs technicians to attached sheet 16 for troubleshooting when the code is confirmed.
Which vehicles are covered by the supplied evidence?
The supplied applicability evidence covers US-market 2012–2013 Mitsubishi i-MiEV vehicles.
Does P1C16 prove there is a CAN bus fault?
No. The procedure requires a CAN bus line check and instructs repair if that check is abnormal, but the supplied evidence does not establish an abnormal CAN bus line as the cause of P1C16.
Can I keep driving or charging with P1C16?
Not yet established by verified evidence. The supplied material does not provide driveability or charging guidance.