Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008MALIBU L4-2.4L HYBRIDREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETESTING AND INSPECTION
2008 Chevrolet Malibu L4-2.4L Hybrid
Engine Control Module: Testing and Inspection
2008 Chevrolet Malibu L4-2.4L HybridSECTION 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). Programming and Relearning
2. The CKP System Variation Learn-Refer to the following:
* Crankshaft Position System Variation Learn for the 2.4L engine
* Crankshaft Position System Variation Learn for the 3.5L engine
* Crankshaft Position System Variation Learn for the 3.6L engine
3. 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.
4. 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.
5. Theft Deterrent-Refer to Immobilizer System Component Programming. Programming and Relearning
ECM Reprogramming
* If the ECM 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.
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:
* 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 for the 2.4L engine
* Crankshaft Position System Variation Learn for the 3.5L engine
* Crankshaft Position System Variation Learn for the 3.6L engine
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.