2008 4.2 Trailblazer Envoy 4.2L ECU ECM PCM GMC

This PCM was removed from a Wrecked 2008 Envoy. We are selling this unit as is! Please note. Is pcm must be reflashed!!

Please note: any time you install another PCM into your vehicle that is not original to it, you will need to do a security relearn and a CASE relearn (whether it is from us, the dealership, or any other vendor whether they tell you in the description or not!!). The security relearn can be done by yourself, it is a simple process. The CASE relearn (crank angle sensor error relearn) needs a Tech 2 scan tool or a higher end snap on scan tool to complete. Needing a CASE relearn will not keep the vehicle from driving, but should be done within two weeks of install.