Electronic Control Module
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
After replacing ECM or if program needs to be updated, refer to latest Techline(R) information on ECM reprogramming. After reprogramming, perform CRANKSHAFT POSITION VARIATION LEARN PROCEDURE and PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS .