Engine-Codes - Generic - P0A93

P0A93 - Inverter 'A' Cooling System Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0A93 Possible Causes

  • Faulty Inverter cooling system
  • Inverter cooling system harness is open or shorted
  • Inverter cooling system circuit poor electrical connection
  • Faulty Water pump with motor assembly
  • Faulty Cooling fan motor
  • Faulty No. 2 cooling fan motor
  • Faulty Inverter with converter assembly

How is the P0A93 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0A93 code

Labor: 1.0

The cost to diagnose the P0A93 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0A93 Meaning

The inverter converts the high-voltage direct current of the HV battery into the alternating current for the MG1 and the MG2. The inverter generates heat during the conversion process, and this heat could damage the inverter if a cooling system is unavailable. Therefore, similar to the MG1 and the MG2, the inverter is cooled by a dedicated cooling system, which consists of an electric water pump, cooling fan, and radiator. This cooling system is independent of the engine cooling system.

More Information

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