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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T50 (M3D), 9T60 (M3T) Or 9T65 (M3V) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P2820 or P2821 >> Circuit/System Description

Circuit/System Description

The solenoid valve controls the oil flow to the appropriate component: Clutch Selector Valve