PCM Replacement

WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If the PCM is replaced, the following procedures must be performed:

The PCM Reprogramming-Refer to Service Programming System (SPS) .
The CKP Variation Learn-Refer to the appropriate procedure:
- CKP System Variation Learn Procedure (4.3L (LU3)).
- CKP System Variation Learn Procedure (4.8L, 5.3L, 6.0L (LR4, LM7, LQ4, LQ9, or L59)).
- CKP System Variation Learn Procedure (8.1L (L18)).
The Theft Deterrent Programming-Refer to Programming Theft Deterrent System Components .