2010 Mazda B Series OBD2 Code P0A93 Inverter A Cooling System Performance

OBD II Fault Code

• OBD II P0A93

OBD-II Code High voltage system may overheat is defined as a Inverter "A" Cooling System Performance

The Inverter for the hybrid system utilizes a separate cooling system to maintain proper operating pressure. If the High Voltage Control Module detects an issue with the cooling system for the hybrid system, it will send a message to the engine control module (PCM) to set code P0A93.

High voltage system may overheat Symptoms

• High voltage system may overheat

Common Problems That Trigger the P0A93 Code

• Coolant system leak in the hybrid cooling system
• High voltage coolant pump failure