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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 25 (Automatic Transmission - 8L45 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0746 or P0747 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • DTC P0746 will set with a hydraulic/mechanical condition or high resistance in the circuit of the component Q77A without setting component/control circuit DTCs.
  • DTC P0747 will set with a hydraulic/mechanical condition.
  • 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
Q77A Transmission Control Solenoid Valve 1 P0746, P0747
  • Binding, sticking or stuck component: Solenoid Valve
  • Damaged or missing component:
    • Retaining Clip
    • Solenoid Valve
1-2-7-8-RClutch Regulator Valve P0746, P0747
  • 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
1-2-7-8-R Clutch Assembly P0746, P0747
  • 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
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