GM diagnostic trouble codes

P1814 GM: Torque Converter Clutch Overstress Powertrain P1815 GM: Transmission Range Switch Start In Wrong Range Powertrain P1816 GM: TFP Valve Position Switch Park Neutral With Drive Ratio Powertrain P1817 GM: TFP Valve Position Switch Reverse With Drive Ratio Powertrain P1818 GM: TFP Valve Position Switch Drive Without Drive Ratio Powertrain P1819 GM: Internal Mode Switch No Start Wrong Range Powertrain P1820 GM: Internal Mode Switch Circuit A Low Powertrain P1822 GM: Internal Mode Switch Circuit B High Powertrain P1823 GM: Internal Mode Switch Circuit P Low Powertrain P1825 GM: Internal Mode Switch Illegal Range Powertrain P1826 GM: Internal Mode Switch Circuit C High Powertrain P1830 GM: Open Or Shorted Condition Detected In The Clutch Pedal Switch Over-Ride Relay Control Powertrain P1831 GM: PC Solenoid Power Circuit Low Voltage Powertrain P1833 GM: A/T Solenoids Power Circuit Low Voltage Powertrain P1835 GM: Kick-Down Switch Powertrain P1836 GM: Kick-Down Switch Failed Open Powertrain P1837 GM: Kick-Down Switch Failed Short Powertrain P1842 GM: 1-2 Shift Solenoid Circuit Low Voltage Powertrain P1843 GM: 1-2 Shift Solenoid Circuit High Voltage Powertrain P1844 GM: Torque Reduction Signal Circuit Desired By TCM Powertrain P1845 GM: Transmission Gear Ratio Output Circuit Powertrain P1847 GM: 2-3 Shift Solenoid Circuit High Voltage Powertrain P1850 GM: Brake Band Apply Solenoid Circuit Powertrain P1851 GM: Brake Band Apply Solenoid Performance Powertrain P1852 GM: Brake Band Apply Solenoid Low Voltage Powertrain P1853 GM: Brake Band Apply Solenoid High Voltage Powertrain P1860 GM: TCC PWM Solenoid Circuit Electrical Powertrain P1864 GM: Torque Converter Clutch Circuit Powertrain P1868 GM: Transmission Fluid Life Powertrain P1870 GM: Transmission Component Slipping Powertrain P1871 GM: Undefined Gear Ratio Powertrain P1873 GM: TCC Stator Temp Switch Circuit Low Powertrain P1874 GM: TCC Stator Temp Switch Circuit High Powertrain P1875 GM: 4WD Low Switch Circuit Powertrain P1884 GM: TCC Enable Shift Light Circuit Powertrain P1886 GM: Shift Timing Solenoid Powertrain P1887 GM: TCC Release Switch Circuit Powertrain P1890 GM: ECM Data Input Circuit Powertrain P1891 GM: Throttle Position Sensor PWM Signal Low Powertrain P1892 GM: Throttle Position Sensor PWM Signal High Powertrain P1893 GM: Engine Torque Signal Low Voltage Powertrain P1894 GM: Engine Torque Signal High Voltage Powertrain P1895 GM: TCM To ECM Torque Reduction Circuit Powertrain P1899 GM: Park Neutral Position Switch Stuck In Park or In Gear Powertrain