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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6L50/6L80/6L90 - DTC P0218 To DTC P0971 >> DTC P0796 or P0797 >> Component Testing

Component Testing

Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection .

Exercise Normal Operation Stuck OFF Stuck ON
Steady State Gears 1st Braking 4, 5, 6 1st Braking, 4, 5, 6 1st Free Wheel, Neutral 1st Braking, 4, 5, 6
Steady State Gears, 1 Free Wheel 2, 3 1st Free Wheel, 2, 3 1st Free Wheel, 2, 3 1st Braking, 4, 5, 6
Garage Shift Park/Neutral to Reverse/Drive Neutral 1st Free Wheel Drive Gear
Downshift from gears 4, 5, 6 to 1, 2, 3 1st Free Wheel, 2, 3 1st Free Wheel, 2, 3 1st Braking, 4, 5, 6
Upshift from gears 1, 2, 3 to 4, 5, 6 4, 5, 6 Neutral 4, 5, 6