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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Automatic Transmission - 6T40 (MNH MNK) Or 6T45 (MHG) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0850, P0851, Or P0852: Park/Neutral Position Switch Circuit >> Actions Taken When the DTC Sets

Actions Taken When the DTC Sets

WARNING: This page is about a different variant/trim than selected.

DTCs P0850, P0851, P0852 are Type C DTCs.

The control module K20 uses the gear selector lever position sent by the control module K70 over serial data to determine park/neutral for engine starting.

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