Code result

P214A

SCR NOx Catalyst Inlet Temperature Too High

High severity

What it means

SCR NOx Catalyst Inlet Temperature Too High: the component is overheating, typically from extended load or slip.

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

  • Upstream regeneration overshoot

    high

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

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