This instruction show you guide on how to remove and install ECM(Engine Control Module) for Chevrolet Avio.More repair case for Chevrolet,please refer to Chevrolet Trouble Repair
1.Disconnect the negative battery cable.
2.Pull the ECM connector lever.
3.Disconnect the ECM connector (1).
4.Remove the ECM bracket retaining nuts (2).
5.Remove the ECM (1).
1.Install the ECM (1).
2.Install the ECM bracket retaining nuts (2) and tighten to 7 N·m (62 lb in).
5.Connect the negative battery cable.