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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission - 8L45 (M5N) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2817 or P2818 >> Circuit/System Description

Circuit/System Description

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The solenoid valve controls the flow of transmission fluid to the hydraulic valve that controls the system pressure in the transmission.