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Home >> GMC >> 2021 >> Terrain SLT, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Automatic Transmission Wiring Harness Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM4491984Courtesy of GENERAL MOTORS COMPANY

    Install the automatic transmission wiring harness (1) to the transmission. Control Valve Body Assembly Installation (without ETRS) , or Control Valve Body Assembly Installation (with ETRS)

  2. GM4489058Courtesy of GENERAL MOTORS COMPANY

    Install the control valve body cover (1) to the transmission. Control Valve Body Cover Replacement 

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