Code result

P20C2

Reductant Heater C Control Circuit Performance

Moderate severity

What it means

Reductant heater C does not warm in time — partial fault.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Partial winding fault

    high

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

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