Lexus
Inverter cooling system not cooling well enough. The inverter has its own coolant loop and electric pump, separate from the engine cooling.
P0A93 fault code: what it means
P0A93: Inverter cooling system not cooling well enough. The inverter has its own coolant loop and electric pump, separate from the engine cooling.
Usual causes, most likely first
- failed or seized electric inverter coolant pump
- low inverter coolant or air in the loop
- pump wiring or connector fault
- blocked inverter radiator or cooling fan fault
P0A93 by make
Toyota
Inverter cooling system not cooling well enough. The inverter has its own coolant loop and electric pump, separate from the engine cooling.
What the repair usually costs
- Water pump replacement (belt-driven, not behind timing cover)NZ$340–NZ$770 · A$340–A$760
- Radiator cooling fan motor or fan assemblyNZ$350–NZ$1,280 · A$330–A$1,210
- Hybrid battery cooling fan and duct clean (Prius / Aqua / Corolla)NZ$100–NZ$240 · A$110–A$260
- Hybrid battery cooling fan and duct clean (Camry / RAV4 / Estima / Lexus)NZ$140–NZ$320 · A$150–A$350
Not sure what P0A93 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.