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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 938 (Automatic Transmission - ALLISON - DTC P0733 To DTC P0873) >> DTC P0851 or P0852 >> Repair Procedures

Repair Procedures

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. ECM replacement. Refer to Control Module References for replacement, setup, and programming.
  2. IMS replacement. Refer to Manual Shift Shaft, Detent Lever, and Position Switch Assembly Replacement .
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