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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 170 (Exhaust System) >> Diagnostic Information and Procedures >> Exhaust Flow Control System Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the exhaust flow control valves open and close when commanding the Exhaust Flow Control Valve On and Off with a scan tool.
    • If the exhaust flow control valves do not open and close 

      Refer to Circuit/System Testing

    • If the exhaust flow control valves open and close 
  3. All OK.
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