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P0D03

Control Pilot Charging Ventilation Switch Circuit High

Generic OBD-II

What it means

The control pilot charging ventilation switch is reading above the range the module expects. The switch tells the charging system whether the area needs ventilation while charging, so a fault can stop charging as a precaution.

Can I keep driving? Usually yes, since this affects charging rather than driving, but the vehicle may not charge until it is repaired. Do not open high-voltage (orange) cables or covers yourself; leave that to a trained technician.

What this part does

The control pilot circuit is a signal wire in the charging cable and socket of a plug-in hybrid or electric vehicle. It lets the car and the charging station agree on how much current is safe to draw, and confirms the connection is correct. The car's charger control module monitors it. Charging systems work at high voltage, where service is for trained people. A fault can stop charging.

Common symptoms

What you'll notice

Common causes

Most likely first

  1. Faulty control pilot charging ventilation switch
  2. Wiring issues or loose connections in the control pilot charging ventilation switch circuit
  3. The control pilot charging ventilation switch circuit is open or disconnected
  4. Malfunctioning control module
  5. Faulty sensors or components related to the control pilot charging ventilation system

How to diagnose & fix

Work through it in order

  1. Check and replace the Control Pilot Charging Ventilation Switch
  2. Inspect and repair any damaged or loose wiring connected to the Control Pilot Charging Ventilation Switch
  3. Clean or replace any clogged or damaged ventilation components related to the Control Pilot Charging Ventilation system

Related codes

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