Lexus
DC/DC converter status circuit low on a Lexus hybrid: the 12 V charging converter is reporting a fault.
P0A09 fault code: what it means
P0A09: DC/DC converter status circuit low on a Lexus hybrid: the 12 V charging converter is reporting a fault.
Usual causes, most likely first
- failed DC/DC converter
- converter fuse or wiring fault
- inverter overheating
P0A09 by make
Toyota
DC/DC converter status circuit low: the 12 V charging converter in the inverter is reporting a fault. Expect the 12 V battery to run down and the car to shut off.
What the repair usually costs
- Hybrid battery new genuine (Camry / RAV4 / Kluger / Lexus)NZ$5,310–NZ$10,550 · A$5,120–A$9,890
- EV on-board charger / ICCU / charging module replace (Hyundai / Kia / MG / Tesla)NZ$3,150–NZ$7,880 · A$3,060–A$7,650
Not sure what P0A09 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.