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Home >> GMC >> 2021 >> Acadia AT4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T50 (M3H), 9T60 (M3G) Or 9T65 (M3W) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Automatic Transmission Wiring Harness Replacement >> Installation Procedure

Installation Procedure

  1. 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)
    GM4491984Courtesy of GENERAL MOTORS COMPANY
  2. Install the control valve body cover (1) to the transmission. Control Valve Body Cover Replacement (LSY) , or Control Valve Body Cover Replacement (LGX) 
    GM4489058Courtesy of GENERAL MOTORS COMPANY