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Home >> Chevrolet >> 2021 >> Bolt EV Premier >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (Hybrid/EV Controls System) >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2020 Chevrolet Bolt EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM4508083Courtesy of GENERAL MOTORS COMPANY

    Using a flat bladed tool, release the ECM bracket retainer. Slide the ECM and bracket assembly to the battery tray.

  2. Engine Control Module (2) - Install
  3. Engine Control Module Bracket Nut (1) - Install and tighten [4x] 4.7 N.m (42 lb in)
  4. GM4508080Courtesy of GENERAL MOTORS COMPANY

    Engine Control Module Electrical Connector (1) - Connect

  5. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection
  6. If replacing the engine control module, reprogram the module. Control Module References