P0A94: 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 P0A94 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

11 complaints filed with NHTSA mention P0A94, 9 of them since 2015, across 3 different models. The component owners most often filed it under: electrical system.

Most-reported models

VehicleComplaintsModel years reported
TOYOTA PRIUS52010, 2014
TOYOTA PRIUS C52012, 2013, 2014

Manufacturer service bulletins that name P0A94

46 technical service bulletins and manufacturer communications filed with NHTSA mention P0A94, from 4 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • JEEP WRANGLER (2019), bulletin 10242800: Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the…
  • TOYOTA PRIUS (2010, 2011, 2012, 2013), bulletin 10178786: TSB: Some 2010 - 2015 model year Prius and 2012 - 2017 model year Prius V vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A94, P324E, P0A1A, and/or P3004, indicating a malfunction has occur…
  • TOYOTA PRIUS V (2014, 2015, 2016, 2017), bulletin 10182971: DL: This Customer Support Program provides coverage as it applies to the Intelligent Power Module (IPM). The specific condition covered by this program is failure of the Intelligent Power Module (IPM) located inside the …
  • ACURA TLX (2015, 2016, 2017), bulletin 10098941: DEALER MESSAGE - AMERICAN HONDA (AHM) IS INVESTIGATING CERTAIN 2015-2017 TLXS WITH A CLIENT COMPLAINT OF THE MALFUNCTION INDICATOR LAMP (MIL) ON WITH THE DTC P16E5 (LIN COMMUNICATION ERROR [PCM-DC-DC CONVERTER]), P0A11 (…
  • NISSAN LEAF (2013, 2014, 2015), bulletin 10192432: F YOU CONFIRM The EV warning light is ON. And CHARGER / PD MODULE (Power Delivery Module or PDM) DTC P0A94 (DC/DC Converter) and/or B2902 (PDM Memory Error) are stored. And The vehicle?s current CHARGER / PD MODULE softw…

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.