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Home › Chevrolet › 2006 › Optra LS, Standard › Repair and Diagnosis › Engine Performance › System › Engine Controls - 1.8L (L79) - DTC P0443 To DTC P2297 › DTC P0660 › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, command the IMT valve solenoid ON and OFF with a scan tool. You should hear and feel an audible click.
  2. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.
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