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Home >> Chevrolet >> 2008 >> Corvette Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Automatic Transmission - 6L50/6L80/6L90 - DTC P0218 To DTC P0974) >> DTC P0796 or P0797 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different variant/trim than selected.

The following fault table will help determine if a hydraulic circuit or an incorrect position of a valve train component affects the transmission operation.

Component Cause DTCs
Automatic Transmission Fluid Filter Assembly Oil filter loose or damaged P0796
Control Solenoid (w/body and TCM) Valve Assembly
  • Clutch Pressure Control Solenoid 3:
    • Always exhausting (Stuck On)
    • Not exhausting (Stuck Off)
    • Needle piston or armature pin binding
    • Control signal fluid supply leak - valve body filter plate assembly cracked or damaged gasket seal
    • O-ring seals leaking
  • Valve body Filter Plate Assembly cracked, blocked or damaged gasket seal
P0796
P0797
Lower Control Valve Body Assembly Clutch Select Valve stuck off - debris, sediment, binding or scored bore P0796
P0797
Fluid Pump Cover Assembly
  • Fluid pump cover vanes and fluid pump rotor broken - wrong pump rotor installed
  • Fluid pump or torque converter overstressed because of high temperatures
P0796
1-2-3-4 and 3-5-R Clutch Housing Assembly 1-2-3-4 clutch backing plate retaining ring not seated, causing the piston to over-travel and cut 1-2-3-4 clutch piston seal P0796
4-5-6 Clutch Housing 4-5-6 housing broken hub weld P0796
Transmission Gear Range to PC Solenoid Valve Operation

Gear 1-2-3-4 CL PC SOL 5 2-6 CL PC SOL 4 3-5 REV CL PC SOL 2 LOW REV 4-5-6 CL PC SOL 3
Park OFF OFF OFF ON
Reverse OFF OFF ON ON
Neutral OFF OFF OFF ON
1st Braking ON OFF OFF ON
1st ON OFF OFF OFF
2nd ON ON OFF OFF
3rd ON OFF ON OFF
4th ON OFF OFF ON
5th OFF OFF ON ON
6th OFF ON OFF ON