Engine Control Module: Testing and Inspection

Engine Control Module Programming and Setup

The following service procedures require either a programming or a setup event be 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 the following:

* Crankshaft Position System Variation Learn Testing and Inspection.

3. The Throttle/Idle Learn procedure-Refer to Throttle/Idle Learn Testing and Inspection.

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 Theft Deterrent Module Programming and Setup Testing and Inspection.

7. Brake Pedal Position Sensor Learn-Refer to Brake Pedal Position Sensor Learn Programming and Relearning.

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.

Note: 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:

* Engine replacement

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

* CKP sensor

Refer to the following:

* Crankshaft Position System Variation Learn Testing and Inspection.

If the throttle body is replaced or a throttle body cleaning procedure is completed, the Throttle/Idle Learn Procedure must be performed. Refer to Throttle/Idle Learn Testing and Inspection.