Please note that this guide is provided as a general reference and in no way constitutes an official recommendation. We constantly update this list to cover more Opel, Buick, Chevrolet & GM (GMC) error codes.
| Error Code | Description | Corrective mesaure |
| P0658 | Actuator High Control Circuit Group 1 Low Voltage | Replace TCM |
| P0659 | Actuator High Control Circuit Group 1 High Voltage | Replace TCM |
| P0668 | Control Module Temperature Sensor Circuit Low Voltage | Replace TCM |
| P0669 | Control Module Temperature Sensor Circuit High Voltage | Replace TCM |
| P0667 | Control Module Temperature Sensor Performance | Replace TCM |
| P06AC | Control Module Power Up Temperature Sensor Performance | Replace TCM |
| P06AD | Control Module Power Up Temperature Sensor Circuit Low Voltage | Replace TCM |
| P06AE | Control Module Power Up Temperature Sensor Circuit High Voltage | Replace TCM |
| P0711 | Transmission Fluid Temperature Sensor Performance | Replace TCM |
| P0712 | Transmission Fluid Temperature Sensor Circuit Low Voltage | Replace TCM |
| P0713 | Transmission Fluid Temperature Sensor Circuit High Voltage | Replace TCM |
| P0716 | Input Speed Sensor Performance | Check/Replace input sensor, wiring harness, and sensing wheel |
| P0717 | Input Speed Sensor Circuit No Signal | Check/Replace input sensor, wiring harness, and sensing wheel |
| P071D | Trans Mode Switch B Signal | Check/Replace Netural Swtich and wiring harness |
| P0722 | Output Speed Sensor Circuit No Signal | Check/Replace output sensor and wiring harness |
| P0723 | Output Speed Sensor Circuit Intermittent | Check/Replace output sensor and wiring harness |
| P0741 | Torque Converter Clutch (TCC) System Stuck Off – Transmission Hydraulic/Mechanical Performance | Check/Replace if the valve body and its solenoids has blockage, Check/Replace oil pump torque converter valve is not blocked, Check/Replace torque converter |
| P0742 | Torque Converter Clutch (TCC) System Stuck On – Transmission Hydraulic/Mechanical Performance | Check/Replace if the valve body and its solenoids has blockage, Check/Replace oil pump torque converter valve is not blocked, Check/Replace torque converter, check transmission oil level |
| P0751 | Shift Solenoid Valve 1 Performance – Stuck Off Transmission Hydraulic/Mechanical Performance | Replace TCM |
| P0752 | Shift Solenoid Valve 1 Performance – Stuck On – Transmission Hydraulic/Mechanical Performance | Check/Replace TCM, check valve body for blockage |
| P0756 | Shift Solenoid Valve 2 Performance – Stuck Off Transmission Hydraulic/Mechanical Performance | Check/Replace TCM, check valve body for blockage |
| P0776 | Pressure Control Solenoid Valve 2 Stuck Off – Transmission Hydraulic/Mechanical Performance | Check transmission oil status and its level, Check/Replace TCM, check valve body for blockage, check 3-5-R clucth durm |
| P0777 | Pressure Control Solenoid Valve 2 Stuck On – Transmission Hydraulic/Mechanical Performance | Check transmission oil status and its level, Check/Replace TCM, check valve body for blockage, check 3-5-R clucth durm |
| P0796 | Pressure Control Solenoid Valve 3 Stuck Off – Transmission Hydraulic/Mechanical Performance | Check transmission oil status and its level, Check/Replace TCM, check valve body for blockage, check 4-5-6 /Low Reverse clucth durm |
| P0797 | Pressure Control Solenoid Valve 3 Stuck On – Transmission Hydraulic/Mechanical Performance | Check transmission oil status and its level, Check/Replace TCM check valve body for blockage, check 4-5-6 /Low Reverse clucth durm |
| P0842, P0843, P0872, P0873, P0877, P0878, P0989, P0990 | Circuit Voltage too High/Low | Check/Replace TCM |
| P0961 | Line Pressure Control Solenoid Valve Performance | Check/Replace TCM check valve body for blockage |
| P0962, P0963 | Line Pressure Control Solenoid Valve Control Circuit Low/High Voltage | Check/Replace TCM check valve body for blockage |
| P0965 | Pressure Control Solenoid Valve 2 Performance | Check/Replace TCM check valve body for blockage |
| P0966, P0967, P0969, P0970, P0971 | Pressure Control Solenoid Valve 3 Control Circuit Low/High Voltage | Check/Replace TCM check valve body for blockage |
| P0973, P0974 | Shift Solenoid Valve 1 Control Circuit Low/High Voltage | Check/Replace TCM check valve body for blockage |
| P150C | TCM Engine RPM Circuit | Check/Replace TCM |
| P1751 | Shift Solenoid 1 Performance | Check transmission oil status and its level, Check/Replace TCM, check valve body for blockage, Check Clucth Soldnois 2 for blockage or damage |
| P2714, P2715 | Pressure Control Solenoid Valve 4 Stuck On/Off – Transmission Hydraulic/Mechanical Performance | Check transmission oil status and its level, Check/Replace TCM, check valve body for blockage, Check 2-6 clutch drum |