Chevrolet specific DTC OBD2 code: P1820 Internal Mode Switch Circuit A Low
Chevrolet specific DTC OBD2 code: P1822 Internal Mode Switch Circuit B High
Chevrolet specific DTC OBD2 code: P1823 Internal Mode Switch Circuit P Low
Chevrolet specific DTC OBD2 code: P1825 Internal Mode Switch Illegal Range
Chevrolet specific DTC OBD2 code: P1791 Transmission Control Module Loop
Chevrolet specific DTC OBD2 code: P1792 Transmission Control Module Reprogrammable Memory
Chevrolet specific DTC OBD2 code: P1793 Transmission control Module Stack Overrun
Chevrolet specific DTC OBD2 code: P1795 CAN Bus-Throttle Body Position
Chevrolet specific DTC OBD2 code: P1800 TCM Power Control Relay Circuit Open
Chevrolet specific DTC OBD2 code: P1801 Performance Selector Switch Failure