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Home >> Chevrolet >> 2011 >> Corvette ZR-1 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 6L80-E - DTC P0562 Through DTC P0990) >> DTC P0776 or P0777 >> Circuit/System Description

Circuit/System Description

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The clutch pressure control (PC) solenoid 2 is part of the control solenoid valve assembly, which has no serviceable parts. The PC solenoid 2 regulates transmission fluid pressure to the 3-5-Reverse clutch regulator valve which controls pressure to the 3-5-Reverse clutch. The TCM calculates gear ratio based on the RPM signals from the input speed sensor (ISS) and the output speed sensor (OSS). The TCM compares the expected transmission gear ratio to the calculated gear ratio for each commanded gear.

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