Last updated on July 19th, 2026 at 12:10 pm
The PCM in a 2016 Mitsubishi i‑MiEV controls all electrical functions, from powertrain to safety systems. When it fails, the vehicle may not start, may stall, or show diagnostic trouble codes that cannot be cleared until the unit is replaced.
When a 2016 Mitsubishi i‑MiEV owner notices erratic behavior—such as sudden stalling, loss of power, or persistent error codes—the first line of inquiry is the PCM. This module orchestrates the vehicle’s electronic systems, and a malfunction can ripple through the entire drivetrain. In this guide you’ll learn how the PCM functions in this specific model, where it sits, how to swap it safely, and what to expect after a replacement. You’ll also find practical tips to keep the module healthy and a FAQ section that answers the most common questions for i‑MiEV drivers.
The PCM in a 2016 Mitsubishi i‑MiEV is the brain that coordinates battery management, motor control, and safety features. It reads sensor data, executes control logic, and communicates with other modules such as the SRS ECU and the OCM ECU. When the PCM fails, the vehicle may show DTC B1691 or B1558, indicating memory issues in the SRS or OCM ECUs, or DTC B223 D, also linked to the SRS‑ECU. replacement PCM for 2016 i‑MiEV The PCM’s failure can lead to a loss of drive power, erratic throttle response, or even a complete shutdown. Therefore, understanding its role helps owners recognize symptoms early and address them before they develop into more serious problems.
The PCM is located under the driver’s seat, beneath the center console. Replacing it involves disconnecting the battery, removing the seat cushion, and sliding the unit out of its tray. After removal, the new PCM is slid into place, reconnected, and the seat is reinstalled. No special torque specifications are listed for this module in the available facts, but it is recommended to follow the manufacturer’s procedure for seating the unit to ensure a proper electrical connection.
After the new PCM is installed, the factory procedure requires a VIN‑specific programming step to sync the unit with the vehicle’s data. Since Flagship One units arrive already VIN‑programmed, you can skip the dealership programming process, saving time and reducing service costs. The replacement PCM will automatically recognize the vehicle’s configuration and function as intended without additional calibration.
Every VIN-programmed replacement unit from Flagship One arrives with these steps already completed.
Typical failure symptoms of the 2016 Mitsubishi i‑MiEV PCM include a no‑start condition, sudden stalling while driving, or a loss of power during acceleration. Drivers may also notice that the vehicle’s dashboard fails to display critical information, or that the scan tool shows no communication with the PCM. If the code P0606 appears, it indicates an internal PCM error that requires replacement. internal PCM failure Addressing these symptoms promptly can prevent more extensive damage to the vehicle’s electrical system.
The codes below point to the ECM itself rather than to a sensor or circuit it monitors. Each one links through to its full diagnostic guide.
| Code | Meaning | Full Guide |
|---|---|---|
| P0606 | Module processor failure | Full P0606 guide → |
TSB #18‑54‑008 updates DTC P101 B and P101 C for the EV‑ECU. The bulletin advises updating the firmware to resolve memory issues that can affect the PCM’s operation.
| Bulletin | Subject | What It Addresses |
|---|---|---|
| — | Technical Document > Tech Talk Articles > DTC B1691 & B1558 Found In SRS ECU and OCM ECU Memory | — |
| — | Technical Document > Tech Talk Articles > DTC B223 D or B1558 Found In SRS-ECU Memory | — |
| 18-54-008 | Technical Document > Technical Service Bulletins > Updates to DTC P101 B and P101 C for EV-ECU | — |
The replacement generally takes between one and two hours, depending on the technician’s familiarity with the seat removal process and the specific tool set used.
Flagship One units are VIN‑programmed, so no additional programming is required. The PCM will match the vehicle’s data automatically.
If a DTC remains, it may indicate an underlying issue with another module or the battery system. A thorough diagnostic scan and possibly further module updates are recommended.
Using a non‑factory equivalent can lead to incompatibility, loss of functionality, or warranty issues. It is best to use a unit specifically designed for the 2016 Mitsubishi i‑MiEV.
Yes, once the PCM is installed and the seat is reassembled, the vehicle should be safe to drive. A quick test drive can confirm proper operation.
If your 2016 Mitsubishi i‑MiEV is showing PCM‑related issues, consider a refurbished replacement that meets OEM specifications. This option can offer a reliable, cost‑effective solution while ensuring your vehicle’s electrical systems remain fully functional.
Flagship One stocks a refurbished, VIN-programmed ECM for the 2016 Mitsubishi i-MiEV with a lifetime warranty, free shipping and no core charge. The full Mitsubishi i-MiEV module lineup covers other engine configurations as well.
For the 2016 Mitsubishi i‑MiEV, a healthy PCM is essential for smooth operation. By staying informed about potential DTCs and following proper replacement procedures, you can keep your vehicle running reliably. Contact a trusted service provider to explore your replacement options.