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Home >> Saturn >> 2005 >> L300 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - Introduction & Repair Instructions >> Repair Instructions >> Transmission Control Module (TCM) Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Installing Transaxle Control Module
    GM894886Courtesy of GENERAL MOTORS CORP.
  1. Insert the TCM into the carrier.
  2. Push straight down until the TCM bottoms in the carrier and the lock tab clicks.
    3. Fig 2: Connecting Transaxle Control Module Electrical Connector
    GM894878Courtesy of GENERAL MOTORS CORP.
  3. Connect the electrical connector to the TCM.
  4. Rotate the connector lock up past the lock tab to seat the connector.
  5. Install the TCM cover over the studs.
    6. Fig 3: Removing & Installing Transaxle Control Module Cover Nuts
    GM894876Courtesy of GENERAL MOTORS CORP.
    NOTE: If the transaxle control module cover nuts are over-tightened, damage to the mounting studs may occur.
  6. Install and tighten the TCM cover nuts.

    Tighten:  Tighten the TCM nuts to 3 N.m (27 lb in).

    7. Fig 4: Installing Right Side Of Cowl Cover
    GM894865Courtesy of GENERAL MOTORS CORP.
  7. Install the right side of the cowl cover.
    8. Fig 5: Installing Right End Of Hood Seal
    GM894863Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The TCM must be reprogrammed when a service replacement module is installed or a DTC 602 will result.
  8. Install the right end of the hood seal.
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