P0249 Code: Turbocharger Wastegate Actuator B Circuit Low
🟠 Moderate severity · drivable
Drivable, but boost control is faulty, so power may be reduced — fix it soon.
What P0249 means
The voltage or current in the wastegate actuator B circuit reads lower than expected. The computer can't drive the actuator properly, so it can't control boost pressure and may limit power.
Symptoms
- Check engine light is on
- Loss of power
- Poor acceleration
- Possible limp mode
Common causes
- most common: Faulty wastegate actuator or solenoid
- common: Wiring shorted to ground or open in the circuit
- less common: Corroded or loose connector
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Replace the wastegate actuator or solenoid | Mechanic | $100–300 |
| Repair shorted or open wiring | Mechanic | $50–150 |
| Clean and re-seat the connector | Yes | $0–50 |
Frequently asked questions
Can I drive with a P0249 code?
Yes, but boost control is faulty, so the car may feel slow. Fix it soon.
What is the most common cause of P0249?
A faulty wastegate actuator or solenoid, or wiring that's shorted or broken.
How much does it cost to fix a P0249?
Usually $100–300 for a new actuator, or $50–150 for wiring repairs.
Related codes
P0247
P0247 Code: Turbocharger Wastegate Actuator B Circuit Malfunction
P0248P0248 Code: Turbocharger Wastegate Actuator B Range/Performance
P0250P0250 Code: Turbocharger Wastegate Actuator B Circuit High
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.