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GMC Engine Codes

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Engine Code Engine Code Description
P1822 Internal Mode Switch Circuit B High
P1823 Internal Mode Switch Circuit P Low
P1825 Internal Mode Switch Illegal Range
P1826 Internal Mode Switch Circuit C High
P1831 PC Solenoid Power Circuit Low Voltage
P1833 A/T Solenoids Power Circuit Low Voltage
P1835 Kick-Down Switch
P1836 Kick-Down Switch Failed Open
P1837 Kick-Down Switch Failed Short
P1842 1-2 Shift Solenoid Circuit Low Voltage
P1843 1-2 Shift Solenoid Circuit High Voltage
P1844 Torque Reduction Signal Circuit Desired By TCM
P1845 Transmission Gear Ratio Output Circuit
P1847 2-3 Shift Solenoid Circuit High Voltage
P1850 Brake Band Apply Solenoid Circuit
P1851 Brake Band Apply Solenoid Performance
P1852 Brake Band Apply Solenoid Low Voltage
P1853 Brake Band Apply Solenoid High Voltage
P1860 TCC PWM Solenoid Circuit Electrical
P1864 Torque Converter Clutch Circuit
P1868 Transmission Fluid Life
P1870 Transmission Component Slipping
P1871 Undefined Gear Ratio
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