OEM 2008 Chevrolet Express 2500 Engine Control Module

2008 Chevrolet Express 2500 Engine Control Module Parts and Q&A

• Q: How to service the Engine Control Module (ECM) on 2008 Chevrolet Express 2500?

  A: Service of the Engine Control Module (ECM) requires a new part interchange or eeprom programming. Verify that the new ecm matches the requirements before you remove the faulty ecm to install the service ecm model. Power losses must be implemented through a complete ignition shut-off during the handling of control module connectors as well as power disconnect and reconnect operations to shield internal module damage. Keeping the metal case of the control module away from battery voltage ensures its protection from damage. Electrostatic discharge damage can be prevented by avoiding touch of connector pins or circuit board soldered components and cleaning all control module connector surfaces. Check that control module connector gaskets are properly installed to block contaminates from entering the module area. A replacement control module requires programming and recording engine oil life remains or else the system will set the oil to be changed at 5,000 km (3,000 mi) from the last change. Operating a scan tool enables you to retrieve the remaining engine oil life percentage which should then be documented. Disconnect the negative Battery Cable as well as the engine wiring harness electrical connectors which belong to the ecm. To detach the ecm from the bracket the user needs to release tabs on the ecm bracket. To install the system position the ecm into its bracket so the ecm bracket tabs can completely connect. Reestablish the connection between the ecm and engine wiring harness electric connectors and the negative Battery Cable. New ecm installation requires ecm programming followed by the use of a scan tool for setting the engine oil life.