OBD-II Generic Error Code P0246: How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
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Error Code
P0246
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P0246 indicates that the turbocharger wastegate solenoid A circuit is reading a high voltage signal, often due to electrical faults, vacuum leaks, or a faulty solenoid. This code can reduce engine power and fuel efficiency. Follow this guide to diagnose and fix the issue safely.
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Tools You'll Need

How to Fix Error Code P0246

  1. Safety First: Disconnect Battery

    Always disconnect the battery before performing electrical diagnostics on your vehicle.

  2. Locate the Wastegate Solenoid

  3. Visual Inspection

  4. Test the Solenoid with a Multimeter

    Ensure the ignition is off and battery is disconnected before testing.

  5. Check Voltage Supply

    Be careful not to short pins; use backprobe pins or fine wire.

  6. Inspect Vacuum Lines and Operation

    Avoid contact with hot engine parts; wear gloves.

  7. Replace Faulty Components

    Reconnect all components securely before starting the engine.

Parts You May Need

Wastegate solenoid (generic)
Check Price on Amazon
Vacuum hose (generic)
Check Price on Amazon
Wastegate solenoid (generic)
Check Price on Amazon
Vacuum hose (generic)
Check Price on Amazon
Wastegate solenoid (generic)
Check Price on Amazon
Vacuum hose (generic)
Check Price on Amazon
Wastegate solenoid (generic)
Check Price on Amazon
Vacuum hose (generic)
Check Price on Amazon
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When to Call a Professional

If you're uncomfortable with electrical testing or if replacing the solenoid doesn't clear the code, a professional mechanic should diagnose wiring issues, turbocharger problems, or ECU faults.

Frequently Asked Questions

What does OBD-II code P0246 mean?
P0246 indicates that the turbocharger wastegate solenoid A circuit is reading a high voltage signal, often due to a short circuit, faulty solenoid, or vacuum leaks.
Can I drive with a P0246 code?
You can drive short distances, but you may experience reduced power and fuel economy. It's best to fix it promptly to avoid turbo or engine damage.
How do I clear code P0246?
Use an OBD2 scanner to clear the code after repairing the issue. If the problem isn't fixed, the code will return.
What are the symptoms of P0246?
Common symptoms include check engine light, reduced engine power, poor acceleration, and sometimes unusual turbocharger noises.
Is a vacuum leak a common cause of P0246?
Yes, cracked or disconnected vacuum hoses can cause incorrect wastegate operation, triggering code P0246.

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