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Home >> GMC >> 2020 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Electronic Transmission Range Select) >> Diagnostic Information and Procedures >> DTC P073D, P073E, P07E4, P07E5, P16F4, P1772, P1773, P1778, P1787, P1789, P187F, or P188A (with M3H or M3U) >> DTC Descriptor

DTC Descriptor

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DTC P073D

Unable to Engage Neutral

DTC P073E

Unable to Engage Reverse

DTC P07E4

Unable to Engage Park

DTC P07E5

Unable to Engage Drive

DTC P16F4

Control Module Transmission Range Switch Input Circuitry Performance

DTC P1772

Powerflow Engaged Signal Message Counter Incorrect

DTC P1773

Internal Mode Switch State Signal Message Counter Incorrect

DTC P1778

Transmission Range Availability Signal Message Counter Incorrect

DTC P1787

Unexpected Range Change Detected

DTC P1789

Current Transmission Range Unknown

DTC P187F

Transmission Range Primary Input Signal Message Counter Incorrect

DTC P188A

Transmission Range Secondary Input Signal Message Counter Incorrect

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