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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1381 (Automatic Transmission - 2ML70 - DTC P0971 To DTC P279D) >> DTC P2714 or P2715 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the Transmission Fluid Check to verify correct fluid level.
  2. Perform the Line Pressure Check to verify correct oil pressure.
  3. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection to verify control solenoid valve assembly condition.
  4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test to verify control solenoid valve assembly function.
  5. Inspect the control valve upper body assembly for sticking valves, damage, scored bores, or debris.
    • If a concern is found in the valve body, repair or replace the valve body as necessary.