Engine Control Module: Testing and Inspection

Engine Control Module Programming and Setup (V8)

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

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) (Service Programming System (SPS)).
2. The CKP System Variation Learn-Refer to Crankshaft Position System Variation Learn (Procedures).
3. The Throttle Learn procedure-Refer to Throttle Learn (Service and Repair).
4. 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 replaced.
5. 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.
6. Theft Deterrent-Refer to Immobilizer System Component Programming (North America except Canada) (Immobilizer System Component Programming (North America except Canada))Immobilizer System Component Programming (Canada) (Immobilizer System Component Programming (Canada)).

ECM Reprogramming

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

Important: After programming, perform the following to avoid future misdiagnosis:


* Turn the ignition OFF for 30 seconds.
* Turn the ignition ON with the engine OFF.
* Use the scan tool in order to retrieve history DTCs from all modules.
* Clear all history DTCs.

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, the CKP Variation Learn Procedure must be performed. Refer to Crankshaft Position System Variation Learn (Procedures).

* Engine replacement
* Any engine repair that disturbs the CKP sensor or its relationship with the crankshaft reluctor wheel
* CKP sensor

If the throttle body is replaced, a Throttle Learn procedure must be performed. Refer to Throttle Learn (Service and Repair).