There's no standard module called "TCCM" (Torque Converter Clutch Module) in a 2004 Chevy Colorado. The 4L60-E automatic transmission in that vehicle uses electronic controls integrated into other modules, primarily the
Transmission Control Module (TCM). The TCM itself isn't necessarily a single, easily-identifiable box; its location varies slightly depending on the specific trim and configuration. However, it's generally located
under the dash, near the center console, or sometimes on the driver's side of the engine compartment.
To find it, you'll likely need to consult a repair manual specific to your 2004 Chevy Colorado's year, make, model, and transmission type. A wiring diagram will be very helpful. Your best bet is to search online for a free repair manual (be cautious of scam sites), or purchase one from a reputable source.
Remember that working with automotive electrical systems requires caution. Disconnect the battery's negative terminal before attempting any work.
