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Home >> GMC >> 2024 >> Terrain AT4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC P27EF, P27F1, or P27F2 >> DTC Descriptor

DTC Descriptor

DTC P27EF

Transmission Range Control Valve 2 Position Switch Circuit

DTC P27F1

Transmission Range Control Valve 2 Position Switch Circuit Low Voltage

DTC P27F2

Transmission Range Control Valve 2 Position Switch Circuit High Voltage