ECM Replacement

If the engine control module (ECM) is replaced, the following procedures must be performed:

1. ECM Reprogramming-Refer to Service Programming System (SPS) .
2. Theft Deterrent-Refer to Immobilizer System Component Programming . The ECM will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. An ECM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password, and will require a learn procedure after programming to learn the current vehicle's password.
3. Crankshaft Position Variation Learn-Refer to Crankshaft Position System Variation Learn .
4. Idle Learn Procedure-Refer to Throttle/Idle Learn .
5. Engine Oil Life Reset-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was replaced.
6. Transmission Fluid Life Remaining-When available, use the scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was replaced.