Circuit/System Description
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.
The solenoid valve controls the oil flow to the appropriate component: Clutch Selector Valve
DTC P2820, P2821 sets only when there is a hydraulic/mechanical problem.
For an overview of the component/system, refer to:
- Electronic Component Description
- Park - Engine Running (Hydraulic Circuits) , or Park - Engine Running (Mechanical Powerflow)
- Reverse (Hydraulic Circuits) , or Reverse (Mechanical Powerflow)
- Neutral - Engine Running (Hydraulic Circuits) , or Neutral - Engine Running (Mechanical Powerflow)
- Drive Range, First Gear (Hydraulic Circuits) , or Drive Range, First Gear (Mechanical Powerflow)
- Drive Range, Second Gear (Hydraulic Circuits) , or Drive Range, Second Gear (Mechanical Powerflow)
- Drive Range, Third Gear (Hydraulic Circuits) , or Drive Range, Third Gear (Mechanical Powerflow)
- Drive Range, Fourth Gear (Hydraulic Circuits) , or Drive Range, Fourth Gear (Mechanical Powerflow)
- Drive Range, Fifth Gear (Hydraulic Circuits) , or Drive Range, Fifth Gear (Mechanical Powerflow)
- Drive Range, Sixth Gear (Hydraulic Circuits) , or Drive Range, Sixth Gear (Mechanical Powerflow)
- Drive Range, Seventh Gear (Hydraulic Circuits) , or Drive Range, Seventh Gear (Mechanical Powerflow)
- Drive Range, Eighth Gear (Hydraulic Circuits) , or Drive Range, Eighth Gear (Mechanical Powerflow)
- Drive Range, Ninth Gear (Hydraulic Circuits) , or Drive Range, Ninth Gear (Mechanical Powerflow)