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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Automatic Transmission - 6L50/6L80/6L90 - DTC P0973 To DTC P2764) >> DTC P1684, P1685 or P1686 >> Component Testing

Component Testing

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