Buick specific DTC OBD2 code: P1817 TFP Valve Position Switch-Reverse With Drive Ratio
Buick specific DTC OBD2 code: P1689 Delivered Torque Circuit Fault
Buick specific DTC OBD2 code: P1790 Transmission Control Module Checksum
Buick specific DTC OBD2 code: P1818 TFP Valve Position Switch-Drive Without Drive Ratio
Buick specific DTC OBD2 code: P1690 ECM Loop Overrun
Buick specific DTC OBD2 code: P1791 Transmission Control Module Loop
Buick specific DTC OBD2 code: P1819 Internal Mode Swtich No Start, Wrong Range
Buick specific DTC OBD2 code: P1636 PCM Stack Overrun
Buick specific DTC OBD2 code: P1654 Service Throttle Soon Lamp Control Circuit
Buick specific DTC OBD2 code: P1672 Low Engine Oil Level Lamp Control Circuit