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Home >> GMC >> 2019 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission - 6T50 (M2D) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0851 >> Actions Taken When the DTC Sets

Actions Taken When the DTC Sets

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DTCs listed in the DTC Descriptor Category = Type C DTC

The control module K20 uses the gear selector lever position sent by the control module K71 over serial data to determine park/neutral for engine starting.