You should disconnect the negative battery cable, disconnect the cooling fan electrical connector for additional clearance while removing the TCM, depress the engine control module (ECM)/TCM cover retainers, remove the ECM/TCM cover from the ECM/TCM bracket, release the bracket TCM retainer, tilt the TCM away from the ECM/TCM bracket, remove the TCM from the TCM bracket, remove the ECM, the ECM/TCM bracket retaining bolts, and the ECM/TCM bracket from the vehicle frame.