P0A94 fault code: what it means

P0A94: DC/DC (boost) converter performance fault: the voltage in or out of the inverter/converter is not what the hybrid ECU expects. Car may run on the engine only or not start.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

1. failed inverter/converter assembly
2. inverter cooling fault (pump or air in loop) - check first, it is cheap
3. inverter harness or connector fault

P0A94 by make

Not sure what P0A94 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.