GMC specific DTC OBD2 code: P1843 1-2 Shift Solenoid Circuit High Voltage
GMC specific DTC OBD2 code: P1884 TCC Enable/Shift Light Circuit
GMC specific DTC OBD2 code: P1816 TFP Valve Position Switch-Park/Neutral With Drive Ratio
GMC specific DTC OBD2 code: P1844 Torque Reduction Signal Circuit Desired By TCM
GMC specific DTC OBD2 code: P1886 Shift Timing Solenoid
GMC specific DTC OBD2 code: P1817 TFP Valve Position Switch-Reverse With Drive Ratio
GMC specific DTC OBD2 code: P1845 Transmission Gear Ratio Output Circuit
GMC specific DTC OBD2 code: P1887 TCC Release Switch Circuit
GMC specific DTC OBD2 code: P1818 TFP Valve Position Switch-Drive Without Drive Ratio
GMC specific DTC OBD2 code: P1847 2-3 Shift Solenoid Circuit High Voltage