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 MANUALSCHEVROLET2005AVEO LS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - 1.6L (L91) - INTRODUCTIONREPAIR INSTRUCTIONSENGINE CONTROL MODULE (ECM) REPLACEMENTINSTALLATION PROCEDURE

2005 Chevrolet Aveo LS, 4D Sedan, Standard

Installation Procedure

2005 Chevrolet Aveo LS, 4D Sedan, StandardSECTION Installation Procedure

Fig 1: Installing ECM To ECM Mount And Retaining Bolts

Courtesy of GENERAL MOTORS CORP.

Position the ECM in place.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the ECM to the ECM mount and install the retaining bolts.
Tighten: Tighten the ECM retaining bolts to 4 N.m (35 lb in).
Connect the negative battery cable.
Perform the following procedures:
- Program the ECM
- CKP System Variation Learn Procedure

RENDER: 1.0x

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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.