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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Automatic Transmission - 8L90 (M5U) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Automatic Transmission Wiring Harness Replacement (Electrical Connector Passage Sleeve) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the control valve body. Refer to Control Valve Body Replacement .
  2. Disconnect the chassis wiring harness from the transmission electrical connector.
    3. Fig 1: Electrical Connector
    GM3802143Courtesy of GENERAL MOTORS COMPANY
  3. Disconnect the electrical connector (1).
    4. Fig 2: Retaining Tabs And Main Connector (Electrical Connector Passage)
    GM3802175Courtesy of GENERAL MOTORS COMPANY
  4. Using a flat-bladed tool, press inward the four retaining tabs (1) around the main connector, then slide the main connector (2) inward into the transmission case.
  5. Remove the automatic transmission wiring harness from the transmission.
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