Turbocharger/Supercharger Wastegate Actuator B Low

Where it lives

For P0249, the description names the actuator as the part involved.

Check these first

• A short to ground in the valve B circuit
• An open in the valve B circuit
• Corrosion in the valve B wiring or connector
• A failed wastegate valve B
• A weak battery or charging system

What to do next

1. Read the valve B circuit voltage on a scan tool
2. Inspect the valve B wiring and connector for an open or short
3. Test the valve B coil resistance against spec
4. Check battery and charging voltage
5. Replace wastegate valve B if the coil is faulty
6. Clear the code and retest

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