ECM Replacement
WARNING: This page is about a different car, the 2011 GMC Savana and 2011 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
If the engine control module (ECM) is replaced, the following procedures must be performed:
- The ECM Reprogramming-Refer to Service Programming System (SPS) .
- The CKP Variation Learn-Refer to Crankshaft Position System Variation Learn , for V8 engines or Crankshaft Position System Variation Learn for V6.
- The Throttle Learn procedure-Refer to Throttle/Idle Learn , or Throttle/Idle Learn for V8.
- The Theft Deterrent Programming-Refer to Theft Deterrent Module Programming and Setup .
- The Fuel Composition Diagnostic-Refer to Fuel Composition Diagnosis for the Flex Fuel engines.
- Engine Oil Life Remaining-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was replaced.
- Transmission Fluid Life Remaining-When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was replaced.