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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 217 (Rear Drive Axle) >> Diagnostic Information and Procedures >> DTC C0393: Rear Differential Clutch Solenoid Valve Control Circuit >> Circuit/System Description

Circuit/System Description

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

The rear differential clutch solenoid valve is an electro-hydraulic valve used to relieve pressure in the hydraulic system for safety reasons. When the valve is energized, the valve is closed and hydraulic pressure can be accumulated. When the valve is de-energized, the valve is open and it is not possible to build hydraulic pressure.

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