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Home › Chevrolet › 2017 › Camaro SS, 2D Convertible, Standard Trans › Repair and Diagnosis › Engine Mechanical › Exhaust System › Diagnostic Information and Procedures › DTC P26C5: Exhaust Flow Control Valve Control Circuit › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the exhaust noise changes modes from quiet to active rumble when commanding the Q15 Exhaust Flow Control Valve Open or Closed with a scan tool. The exhaust noise will be in quiet mode when the valve is closed. The exhaust noise will be in active rumble mode when the valve is open.
    • If the exhaust noise does not change 

      Refer to Circuit/System Testing.

    • If the exhaust noise changes 
  3. All OK.
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