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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Automatic Transmission - ALLISON - Introduction (2 Of 2)) >> Repair Instructions >> Transmission Control Module (TCM) Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Connect the TCM electrical connectors (2) to the TCM.
    Fig 1: Installing TCM To Cover
    GM711689Courtesy of GENERAL MOTORS CORP.
  2. Install the TCM to the cover.
    3. Fig 2: Installing Cover And Module To Radiator Shroud
    GM711690Courtesy of GENERAL MOTORS CORP.
  3. Using the alignment tabs (1), install the cover and module to the radiator shroud.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 3: Installing TCM Cover Bolts
    GM711679Courtesy of GENERAL MOTORS CORP.
  4. Install the TCM cover bolts (1) to the radiator shroud.

    Tighten:  Tighten the bolts to 9 N.m (80 lb in).

  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  6. Reprogram the TCM. Refer to Control Module References in Computer/Integrating Systems.
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