Buick specific DTC OBD2 code: P1884 TCC Enable/Shift Light Circuit
Buick specific DTC OBD2 code: P1844 Torque Reduction Signal Circuit Desired By TCM
Buick specific DTC OBD2 code: P1886 Shift Timing Solenoid
Buick specific DTC OBD2 code: P1845 Transmission Gear Ratio Output Circuit
Buick specific DTC OBD2 code: P1887 TCC Release Switch Circuit
Buick specific DTC OBD2 code: P1847 2-3 Shift Solenoid Circuit High Voltage
Buick specific DTC OBD2 code: P1890 ECM Data Input Circuit
Buick specific DTC OBD2 code: P1850 Brake Band Apply Solenoid Circuit
Buick specific DTC OBD2 code: P1891 Throttle Position Sensor PWM Signal Low
Buick specific DTC OBD2 code: P1851 Brake Band Apply Solenoid Performance