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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1372 (Automatic Transmission - 2ML70 - DTC P0218 To DTC P0965-P0967) >> DTC P0776 or P0777 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The clutch pressure control solenoid 2 is part of the control solenoid valve assembly and is not serviced separately. The clutch pressure control solenoid 2 controls transmission fluid pressure to the hybrid direct, 2-3-4 clutch regulator valve. The transmission control module monitors the transmission fluid pressure switch 3 state, in order to determine function of the clutch pressure control solenoid 2 and the hybrid direct, 2-3-4 clutch regulator valve. When the clutch pressure control solenoid 2 is commanded ON, the transmission fluid pressure switch 3 state should be High. When the clutch pressure control solenoid 2 is commanded Off, the transmission fluid pressure switch 3 parameter state should be Low.