Toyota
High-voltage power circuit fault on a Toyota hybrid. On 2010-15 Prius this code is commonly linked to inverter failure and the stalling warranty extension.
P3004 fault code: what it means
P3004: High-voltage power circuit fault on a Toyota hybrid. On 2010-15 Prius this code is commonly linked to inverter failure and the stalling warranty extension.
Usual causes, most likely first
- failed inverter/power module
- HV cable or connector fault
- inverter cooling fault
P3004 by make
What the repair usually costs
- Hybrid inverter replace with used / reman unit (Prius / Aqua / Camry)NZ$1,210–NZ$2,850 · A$1,350–A$3,090
- Hybrid inverter replace with new genuine unitNZ$3,940–NZ$8,460 · A$3,550–A$7,490
Not sure what P3004 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.