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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Drive Axle >> Diagnostic Information and Procedures >> DTC C0393: Rear Axle Coupling Solenoid Valve >> Circuit/System Verification

Circuit/System Verification

  1. Engine running and vehicle stationary.
  2. Verify the scan tool Rear Differential Clutch Status parameter is Normal.
    • If not Normal 

      Refer to Circuit/System Testing.

    • If Normal 
  3. All OK.
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