Code result

P0D03

Control Pilot Charging Ventilation Switch Circuit High

Moderate severity

What it means

The control pilot charging ventilation switch reports a circuit high condition. Charging ventilation requirement signal compromised (used for indoor charging).

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

  • Wire shorted to B+

    high

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

  • Switch open

    medium

    A plausible cause — test and verify before replacing parts.

  • Connector pins corroded - high contact resistance

    low

    Less common, but worth ruling out after the more likely causes.

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