Turbocharger/Supercharger Wastegate Actuator A

Where it lives

For P0243, the description names the actuator as the part involved.

Check these first

• A faulty wastegate regulating valve A
• An open or short in the valve A circuit
• Corrosion in the valve A connector
• A stuck or sticking wastegate
• A faulty boost sensor feeding the valve command

What to do next

1. Command wastegate valve A with a scan tool and watch turbo boost
2. Inspect the valve A connector and wiring for damage or corrosion
3. Test the valve A coil resistance against spec
4. Check the wastegate linkage and actuator for sticking
5. Replace wastegate valve A if it does not respond to the command
6. Clear the code and retest

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