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 195 (AUTOMATIC TRANSMISSION - VT25-E - INTRODUCTION & REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSTRANSMISSION CONTROL MODULE (TCM) REPLACEMENTINSTALLATION PROCEDURE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Installation Procedure
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Installation Procedure
WARNING: This page is about a different car, the 2005 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Install the TCM.
- Connect J1 and J2 TCM electrical connectors.
- Program the TCM with the correct calibration. Refer to Transmission Control Module Reprogramming Procedures .
IMPORTANT:
DTC P0602 sets with all service TCMs. When the TCM is reprogrammed with the correct software and calibrations, DTC P0602 will be erased.
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.