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Home >> Cadillac >> 2018 >> Escalade ESV Platinum, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Engine Controls And Fuel - 6.0L (L96) - Repair Instructions) >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure

Installation 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.
    Fig 1: ECM And Bracket
    GM1703439Courtesy of GENERAL MOTORS COMPANY
  1. Install the bottom ECM tabs into the bracket.
  2. Push the ECM in securing the ECM to the bracket.
    3. Fig 2: Engine Control Module (ECM) Components
    GM1703437Courtesy of GENERAL MOTORS COMPANY
  3. Position the engine wiring harness lower electrical connector and engage the retainer (3) securing the lower connector (4) to the ECM.
  4. Position the engine wiring harness upper electrical connector and engage the retainer (2) securing the upper connector (1) to the ECM.
  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Dual Battery)Battery Negative Cable Disconnection and Connection (Single Battery) .
  6. If a NEW ECM was installed, program the ECM. Refer to Control Module References .
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