Diagnostic Fault Information
WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The components are listed from the least to the most intrusive to service.
| Component |
DTC |
Condition |
|
Control Valve Solenoid Body
- Q77H Transmission Control Solenoid Valve 8
|
P0741, P2817, P2818 |
- Binding, sticking or stuck component: Solenoid Valve
- Blocked or restricted component: Fluid/oil passage
- Damaged or missing component:
- Bore
- Retaining Clip
- Solenoid Valve
- Spring
- Valve
|
|
Torque Converter Assembly
|
P0741, P2817, P2818 |
- Blocked or restricted component: Fluid/oil passage
- Damaged or worn component: Friction Plate
- Leaking component: Fluid/oil passage
|
|
Automatic Transmission Fluid Pump Assembly
- Torque Converter Clutch Blowoff Ball Valve
- Torque Converter Clutch Blowoff Ball Valve Retainer
- Torque Converter Clutch Blowoff Ball Valve Spring
- Torque Converter Clutch Control Valve
- Torque Converter Clutch Regulator Apply Valve
- Valve Body Bore
- Valve Spring
|
P0741, P2817, P2818 |
- Binding, sticking or stuck component: Valve
- Debris on the component.
- Damaged or missing component:
- Bore
- Retaining Clip
- Spring
- Valve
|