GMC specific DTC OBD2 code: P1740 Transmission Torque Reduction Request Circuit
GMC specific DTC OBD2 code: P1743 TP Signal From ECM
GMC specific DTC OBD2 code: P1760 ECM Supply Voltage Interrupted
GMC specific DTC OBD2 code: P1779 Engine Torque Delivered To TCM Signal
GMC specific DTC OBD2 code: P1780 Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit
GMC specific DTC OBD2 code: P1790 Transmission Control Module Checksum
GMC specific DTC OBD2 code: P1791 Transmission Control Module Loop
GMC specific DTC OBD2 code: P1792 Transmission Control Module Reprogrammable Memory
GMC specific DTC OBD2 code: P1795 CAN Bus-Throttle Body Position
GMC specific DTC OBD2 code: P1800 TCM Power Control Relay Circuit Open