P1440 on the 2012 Honda Civic
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| A20-030 | 2020-12-23. Service bulletin. "Service Bulletin - The Motor Power Inverter (MPI), also known as the Intelligent Inverter Unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the following DTC(s): -P1440 (MPI Module Output Circuit Malfunction) -P1437 (MPI Module Short Circuit) -P15A5 (Motor Current Sensor Circuit Malfunction) -P0A78 (MPI Module Internal Circuit Malfunction) -P0AE1 (Bypass Contractor Malfunction) -P0A3C (Motor Control Module (MCM) Overheating) -P0A3F (Motor Rotor Position Sensor Circuit Malfunction) -P0DA8 (MPI Module Voltage Malfunction) -P1634 (MPI Module Signal Circuit Malfunction) -P0AEE (MPI Internal Circuit Malfunction) -P0A27 (High Voltage Contactor Stays Activated) American Honda is extending the warranty coverage of the motor power inverter (MPI) on these vehicles to 15 years from the original date of purchase or 150,000 miles, whichever comes first." |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.