Code result

P0A93

Inverter A Cooling System Performance

High severity

What it means

The hybrid control module detects insufficient cooling performance for inverter A, where coolant temperature rise per power dissipation exceeds expected value.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Coolant pump weak

    high

    One of the most commonly reported causes for this code — check this first.

  • Low coolant level

    medium

    A plausible cause — test and verify before replacing parts.

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