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 CARSECTION 48 (AUTOMATIC TRANSAXLE - INTRODUCTION & REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSTRANSMISSION CONTROL MODULE (TCM) 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 car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Lifting Right End Of Hood Seal

GM894860

Courtesy of GENERAL MOTORS CORP.

Raise the hood.
Lift up the right end of the hood seal.

Fig 2: Lifting Right Side Of Cowl Cover

GM894864

Courtesy of GENERAL MOTORS CORP.

Lift up the right side of the cowl cover.

Fig 3: Removing & Installing Transaxle Control Module Cover Nuts

GM894876

Courtesy of GENERAL MOTORS CORP.

Remove the nuts from the transaxle control module (TCM) cover.

Fig 4: Disconnecting Transaxle Control Module Electrical Connector

GM894877

Courtesy of GENERAL MOTORS CORP.

Lift the cover off of the studs.
Depress the lock and rotate the connector lever down.
Disconnect TCM electrical connector.

Fig 5: Depressing Transaxle Control Module Lock Tab

GM894880

Courtesy of GENERAL MOTORS CORP.

Depress the lock tab holding the TCM in the carrier.

Fig 6: Removing Transaxle Control Module

GM894883

Courtesy of GENERAL MOTORS CORP.

Lift the TCM straight up to remove the TCM from the carrier.

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.