Cadillac specific DTC OBD2 code: P1689 Delivered Torque Circuit Fault
Cadillac specific DTC OBD2 code: P1790 Transmission Control Module Checksum
Cadillac specific DTC OBD2 code: P1818 TFP Valve Position Switch-Drive Without Drive Ratio
Cadillac specific DTC OBD2 code: P1690 ECM Loop Overrun
Cadillac specific DTC OBD2 code: P1791 Transmission Control Module Loop
Cadillac specific DTC OBD2 code: P1819 Internal Mode Swtich No Start, Wrong Range
Cadillac specific DTC OBD2 code: P1691 Coolant Gage Circuit Low Voltage
Cadillac specific DTC OBD2 code: P1792 Transmission Control Module Reprogrammable Memory
Cadillac specific DTC OBD2 code: P1820 Internal Mode Switch Circuit A Low
Cadillac specific DTC OBD2 code: P1637 Generator L-Terminal Circuit