P0A3F: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P0A3F on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

8 complaints filed with NHTSA mention P0A3F, 7 of them since 2015, across 5 different models. The component owners most often filed it under: power train.

Most-reported models

VehicleComplaintsModel years reported
CHRYSLER PACIFICA32020, 2021, 2023

Manufacturer service bulletins that name P0A3F

19 technical service bulletins and manufacturer communications filed with NHTSA mention P0A3F, from 6 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CHRYSLER PACIFICA (2017, 2018, 2019, 2020), bulletin 10236905: Internal Transmission Wiring Connector Short Warranty Extension XE1 Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following…
  • CHRYSLER PACIFICA PLUG-IN HYBRID (2017, 2018, 2019, 2020), bulletin 11001830: "Internal Transmission Wiring Connector Short and Motor A Bearing Failure Warranty Extension XE1 **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of…
  • RAM 1500 (2020, 2021), bulletin 10187133: Motor Generator Unit (MGU) Connector Not Fully Seated This bulletin involves replacing the MGU. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find…
  • CHEVROLET BOLT EV (2017, 2018, 2019, 2020), bulletin 10170434: This Preliminary information communicates that Engineering is currently investigating the cause of P0A3F. Advising the dealers to check connections. If nothing less found replace the power inverter module, the under-hood…
  • HONDA CIVIC HYBRID (2012, 2013, 2014, 2015), bulletin 10184658: "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): -…
  • ACURA ILX HYBRID (2013), bulletin 10184664: "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): -…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.