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Transmission Control Module Replacement

Fig 1: Transmission Control Module
GM4059016Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedures 
Front Wheelhouse Liner Replacement
1 Transmission Control Module

Procedure

  1. Disconnect the electrical connector.
  2. Remove the module from the module bracket by releasing the retaining tabs.
  3. If installing a new module, perform the transmission control module programing and setup. Refer to K71 Transmission Control Module: Programming and Setup (8L45/8L90 & TL-80SN (MGG)) .
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