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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 P171A-P171C >> DTC Descriptor

DTC Descriptor

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.
DTC P171A

Transmission Accumulator Solenoid Valve Control Circuit

DTC P171B

Transmission Accumulator Solenoid Valve Control Circuit Low Voltage

DTC P171C

Transmission Accumulator Solenoid Valve Control Circuit High Voltage