Turbocharger Compressor Outlet Switching Valve Control Circuit/Open

Where it lives

For P22CA, the circuit described runs through the switch. The description of P22CA reports the switch as open.

Check these first

• An open in the compressor outlet switching valve control circuit
• A failed compressor outlet switching valve
• A broken wire or loose connector at the switching valve
• A control output fault at the ECM

What to do next

1. Command the compressor outlet switching valve on a scan tool
2. Test the control circuit for continuity
3. Inspect the switching valve connector for loose pins
4. Check the ECM control output for the switching valve
5. Replace the compressor outlet switching valve if the circuit tests good
6. Clear the code and retest

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