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P0246Turbocharger/Supercharger Wastegate Solenoid "A" High

What it means

The wastegate (boost control) solenoid circuit reads too high a voltage, usually an open circuit.

Symptoms

  • Low power or limp mode
  • Overboost or underboost codes
  • Check engine light

Common causes

  • Open solenoid winding or wire
  • Missing supply to the solenoid
  • Connector corrosion
  • ECU driver fault

What to check first

  1. Measure the solenoid resistance (often 10–30 Ω)
  2. Check the supply and run the actuator test
  3. Check the vacuum lines to and from the solenoid
Can I drive with P0246? Usually yes for a short distance, but performance or economy may suffer and the fault can get worse. Diagnose it soon.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0246: questions and answers

What does P0246 mean?

P0246: Turbocharger/Supercharger Wastegate Solenoid "A" High. The wastegate (boost control) solenoid circuit reads too high a voltage, usually an open circuit.

What are the symptoms of P0246?

Low power or limp mode. Overboost or underboost codes. Check engine light.

What causes P0246?

Open solenoid winding or wire. Missing supply to the solenoid. Connector corrosion. ECU driver fault.

How do you diagnose P0246?

1. Measure the solenoid resistance (often 10–30 Ω) 2. Check the supply and run the actuator test 3. Check the vacuum lines to and from the solenoid

Can I drive with P0246?

Usually yes for a short distance, but performance or economy may suffer and the fault can get worse. Diagnose it soon.