Engine Control Module: Testing and Inspection

Powertrain Control Module Programming and Setup

The following service procedures require either a programming or a setup event be performed for a complete repair.

PCM Replacement

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

1. The PCM Reprogramming-Refer to Service Programming System (SPS). Programming and Relearning
2. The CKP Variation Learn

* Refer to Crankshaft Position System Variation Learn in Computers and Control Systems - 4.3L (LU3).
* Refer to Crankshaft Position System Variation Learn in Computers and Control Systems - 4.8L, 5.3L, 6.0L (LR4, LM7, LQ4, LQ9, or L59).

3. The Immobilizer programming-Refer to Programming Immobilizer System Components. Programming and Relearning

PCM Reprogramming

* If the PCM needs to be reprogrammed, refer to Service Programming System (SPS). Programming and Relearning
* 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 reprogrammed.
* 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 reprogrammed.

Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, a CKP Variation Learn Procedure must be performed.

* Engine replacement
* Any engine repair that disturbs the crankshaft position (CKP) sensor or it's relationship with the crankshaft reluctor wheel
* CKP sensor