The Lemon Index

Check engine light · Engine codes

P0A94: DC/DC Converter Performance.

Powertrain · GenericP0A94
Fix soon
What it means

The hybrid system's voltage converter isn't performing as expected.

How serious

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

Where a shop starts

Failing converter. Then: inverter fault.

Owners named P0A94 in 12 complaints to the U.S. government, most often on the Toyota Prius.

Cars owners report it on

Complaints that name P0A94, by model. Raw counts, not a failure rate: popular models get more complaints.

Years owners report it on most: 2010 Toyota Prius

The details

What P0A94 means

The hybrid system's voltage converter isn't performing as expected.

Can I drive with P0A94?

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

67% of the owner complaints that name P0A94 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P0A94
  • Failing converter
  • Inverter fault

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Warning lights and electrical faults: 67% of complaints
  • Loses power or goes into limp mode: 50% of complaints
  • Brakes or ABS act up: 33% of complaints
  • Stalls or shuts off: 17% of complaints

Share of complaints naming the code whose text also mentions each problem.

Model years that report P0A94 most

2010 Toyota Prius (4).

Related codes

P0A93 P0AA6 P0A80 P0A7F P0A43 P0A0A P0A08

Quick answers

What does P0A94 mean?

DC/DC Converter Performance. The hybrid system's voltage converter isn't performing as expected.

Can I drive with P0A94?

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

What causes P0A94?

Failing converter; Inverter fault.

Counts: NHTSA owner complaints whose text names P0A94. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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