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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10L80 (MHS MQC) - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC P0741, P2817, or P2818 >> Diagnostic Fault Information

Diagnostic Fault Information

NOTE:
  • DTC P0741, P2817 will set with a hydraulic/mechanical Condition or high resistance in the circuit of the component Q77H without setting component/control circuit DTCs.
  • DTC P2818 will set with a hydraulic/mechanical Condition.
  • The components are listed from the least to the most intrusive to service.
Component DTC Condition
Q77H Transmission Control Solenoid Valve 8 P0741, P2817, P2818
  • Binding or Sticking
  • Mechanically damaged
  • Missing components
  • Torque Converter Clutch Regulator Apply Valve
  • Valve Spring
  • Valve Body Bore
P0741, P2817, P2818
  • Binding or Sticking
  • Debris on the component.
  • Mechanically damaged
  • Torque Converter Clutch Blowoff Ball Valve
  • Torque Converter Clutch Blowoff Ball Valve Spring
  • Torque Converter Clutch Blowoff Ball Valve Retainer
P0741, P2817, P2818
  • Binding or Sticking
  • Debris on the component.
  • Mechanically damaged
Torque Converter Clutch - Anti Drainback Valve P0741, P2817, P2818
  • Binding or Sticking
  • Debris on the component.
  • Mechanically damaged
Control Valve Body P0741, P2817, P2818
  • Fluid/oil passage - Restricted/Leaking
Torque Converter P0741, P2817, P2818
  • Binding or Sticking
  • Debris on the component.
  • Mechanically damaged