Code result

P2B83

Charge Air Cooler Coolant Pump A Overspeed/Air In System

High severity

What it means

The charge air cooler coolant pump A runs above the calibrated maximum speed without producing the expected flow. Indicates air pocket in the coolant loop.

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

  • Air pocket in coolant loop

    high

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

  • Coolant level low

    medium

    A plausible cause — test and verify before replacing parts.

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