P0A93
Inverter A Cooling System Performance
The hybrid control module detects insufficient cooling performance for inverter A, where coolant temperature rise per power dissipation exceeds expected value.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: shop_only
Common causes
Ordered by how often each turns out to be the cause.
- Coolant pump weakCommon
- Low coolant levelPossible
Parts involved
- Hybrid Inverter
- Electric Coolant Pump
- Coolant Radiator
P0A93 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.