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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 350 (Rear Drive Axle) >> Diagnostic Information and Procedures >> DTC C0393: Rear Differential Clutch Solenoid Valve Control Circuit (G99) >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

The right and left rear differential clutch solenoid valves are electro-hydraulic valves used to relieve pressure in the hydraulic system. When the solenoid valves are energized, the valves are closed and hydraulic pressure can be accumulated. When the solenoid valves are de-energized, the valves are open and it is not possible to build hydraulic pressure.

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