General Motors GM specific DTC OBD2 code: P1823 Internal Mode Switch Circuit P Low
General Motors GM specific DTC OBD2 code: P1822 Internal Mode Switch Circuit B High
General Motors GM specific DTC OBD2 code: P1820 Internal Mode Switch Circuit A Low
General Motors GM specific DTC OBD2 code: P1819 Internal Mode Swtich No Start, Wrong Range
General Motors GM specific DTC OBD2 code: P1818 TFP Valve Position Switch-Drive Without Drive Ratio
General Motors GM specific DTC OBD2 code: P1817 TFP Valve Position Switch-Reverse With Drive Ratio
General Motors GM specific DTC OBD2 code: P1816 TFP Valve Position Switch-Park/Neutral With Drive Ratio
General Motors GM specific DTC OBD2 code: P1815 Transmission Range Switch-Start In Wrong Range
General Motors GM specific DTC OBD2 code: P1814 Torque Converter Overstressed
General Motors GM specific DTC OBD2 code: P1813 Torque Control