PCM Replacement

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, 2007 Chevrolet RV Cutaway, and 2007 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

If the powertrain control module (PCM) is replaced, the following procedures must be performed:

The PCM Reprogramming-Refer to Service Programming System (SPS) .
The CKP Variation Learn
- Refer to Crankshaft Position System Variation Learn for the 4.3L (LU3) engine.
- Refer to Crankshaft Position System Variation Learn for the 4.8L, 5.3L, 6.0L (LR4, LM7, LQ4, LQ9, or L59) engines.
The Immobilizer programming-Refer to Programming Immobilizer System Components .