Diagnostic Fault Information

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

DTC P2723, P2724 sets only when there is a hydraulic/mechanical problem.
The components are listed from the least to the most intrusive to service.
Verify the conditions listed in the table do not exist:

Component	DTC	Condition
Q77E Transmission Control Solenoid Valve 5	P2723, P2724	Binding, sticking or stuck component: Solenoid Valve Damaged or missing component: Retaining Clip Solenoid Valve
4-5-6-7-8-R Clutch Regulator Valve	P2723, P2724	Blocked or restricted component: Screen - Fluid/oil passage Binding, sticking or stuck component: Valve Debris on the component. Damaged component: Valve or Bore - Scored Spring
4-5-6-7-8-R Clutch Assembly	P2723, P2724	Blocked or restricted component: Fluid/oil passage Leaking component: Clutch Piston Clutch Housing Gasket O-Ring Seal Binding, sticking or stuck component: Clutch Plates Damaged or worn component: Clutch Plates Clutch Piston Clutch Housing