Pontiac specific DTC OBD2 code: P1868 Transmission Fluid Life
Pontiac specific DTC OBD2 code: P1870 Transmission Component Slipping
Pontiac specific DTC OBD2 code: P1871 Undefined Gear Ratio
Pontiac specific DTC OBD2 code: P1873 TCC Stator Temp. Switch Circuit Low
Pontiac specific DTC OBD2 code: P1874 TCC Stator Temp. Switch Circuit High
Pontiac specific DTC OBD2 code: P1875 4WD Low Switch Circuit
Pontiac specific DTC OBD2 code: P1884 TCC Enable/Shift Light Circuit
Pontiac specific DTC OBD2 code: P1886 Shift Timing Solenoid
Pontiac specific DTC OBD2 code: P1887 TCC Release Switch Circuit
Pontiac specific DTC OBD2 code: P1890 ECM Data Input Circuit