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Home >> GMC >> 2021 >> Acadia AT4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T50 (M3H), 9T60 (M3G) Or 9T65 (M3W) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P1775 >> Actions Taken When the DTC Sets

Actions Taken When the DTC Sets

DTCs listed in the DTC Descriptor Category = Type A DTC

The control module K20 uses the redundant information from control module K71 to determine the gear selector lever position.