Turbocharger Turbine Inlet Valve Control Circuit/Open

Where it lives

For P22CF, the valve sits on the circuit this code reports. The description of P22CF reports the valve as open.

Check these first

• An open control wire to the turbine inlet valve actuator
• A turbine inlet valve stuck or seized
• A failed actuator solenoid on the turbine inlet valve
• Corrosion at the turbine inlet valve connector
• An ECM driver fault on the valve control circuit

What to do next

1. Inspect the turbine inlet valve actuator wiring
2. Command the turbine inlet valve with a scan tool and watch it move
3. Check the valve for sticking or debris
4. Inspect the actuator connector for corrosion
5. Replace the turbine inlet valve actuator if the wire tests good
6. Clear the code and retest

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