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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls/Fuel - 1.8L - DTC Diagnostics, Troubleshooting & Diagnosis) >> Diagnostic Information and Procedures >> DTC P0660 (LUW) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Engine idling, command the Intake Manifold Tuning Solenoid Valve Closed with a scan tool. The Q22 Intake Manifold Tuning Solenoid Valve actuator should move to the closed position.
  2. Command the Intake Manifold Tuning Solenoid Valve Open and Closed while observing the control circuit status parameters listed below. The parameters should not display malfunction.
    • Intake Manifold Tuning Control Valve Control Circuit Low Voltage Test Status
    • Intake Manifold Tuning Control Valve Control Circuit Open Test Status
    • Intake Manifold Tuning Control Valve Control Circuit High Voltage Test Status
  3. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure records data.
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