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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROLS - 2.0L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSPOWERTRAIN CONTROL MODULE (PCM) REPLACEMENTREMOVAL PROCEDURE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Removal Procedure
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
- Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Disconnect the 3 powertrain control module (PCM) harness connectors from the PCM, noting proper orientation.NOTE: Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables or when charging the vehicles battery.
- Use the retaining tab to release the PCM from the underhood junction block bracket.
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.