P0A7AGenerator Inverter Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0A7A reports that the inverter stage driving the generator has signalled a fault, for example overcurrent or a failed power switch. Toyota uses the code across its hybrids and splits it with information codes. Bulletin T-SB-0142-16 covers 2012-2016 Avalon, Camry and RAV4 Hybrid with MIL on and P0A7A plus information code 122, a generator inverter fail signal caused by overcurrent; the repair replaces inverter and transaxle. A Toyota field report filed with NHTSA describes a 2006 Highlander Hybrid with P0A7A sub code 325, master warning, MIL and Check Hybrid System, traced to a fault inside the inverter assembly. P0A78 and P0A79 are the drive motor inverters, P0A3E generator inverter overheating, P0A92 generator performance.
- What you may notice
- MIL, master warning and Check Hybrid System message
- Reduced power or vehicle will not enter ready mode
- Likely causes
- LikelyInternal generator inverter fault with overcurrent (Toyota information code 122)
- LikelyInverter assembly defective
- PossibleFault in the generator inside the transaxle
- RareInsufficient inverter cooling stressing the power stage
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €1,000 – €8,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.