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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transmission - 6T70 (M7U M7W) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0776 or P0777: Pressure Control Solenoid Valve 2 Stuck >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0776 

TCM has detected an incorrect gear ratio or neutral condition when the 3-5-Reverse clutch is commanded ON. This condition must occur 3 times.

P0777 

TCM has detected an incorrect gear ratio change when the 3-5-Reverse clutch is commanded OFF during a shift or when 3rd gear ratio is detected in 1st gear. This condition must occur 3 times.

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