ECM Replacement

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 CKP System Variation Learn Procedure in Engine Controls - 5.3L.
• The Theft Deterrent Programming-Refer to Programming Theft Deterrent System Components in Theft Deterrent.