P22C7

Turbocharger Compressor Outlet Valve Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Loss of engine power
Rough engine operation
Illumination of the fault warning lamp (Check Engine)
Reduced turbocharging efficiency
Possible popping or whistling sounds from the turbine

Causes

Open circuit in valve control circuit
Short circuit to positive in the control circuit
Solenoid valve malfunction (jamming, winding break)
Problems with the wiring harness (frayed, damaged)
Engine control unit (ECU) malfunction

How to Fix

Visually inspect the wiring harness and connectors for damage
Checking the solenoid valve coil resistance
Checking the voltage and continuity of the control circuit using a multimeter
Replacing a faulty solenoid valve
Repair or replacement of damaged wires

Related codes

P22C6 P22C8 P2563