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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P27EF, P27F1, or P27F2 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

P27EF 

Transmission Range Control Valve 2 Position Switch = 1.3 to 1.5 V - For greater than 1 s

P27F1 

Transmission Range Control Valve 2 Position Switch = Less than 0.4 V - For greater than 1 s

P27F2 

Transmission Range Control Valve 2 Position Switch = Greater than 2.5 V - For greater than 1 s

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