OE Quality
60-Day Returns

Cardone 77-7121F Engine Control Module
Overview of Cardone Engine Control Module 77-7121F
The Cardone Engine Control Module (ECM) part number 77-7121F is designed for select GM vehicles including Cadillac, Chevrolet, GMC, Pontiac, and Saturn models. This ECM is engineered to manage engine functions and optimize vehicle performance for models such as the Chevrolet Silverado 1500, GMC Sierra 2500 HD, and Cadillac Escalade.
- Direct replacement ECM for specific GM vehicles
- Compatible with multiple makes including Cadillac, Chevrolet, GMC, Pontiac, and Saturn
- Supports models like Chevrolet Avalanche, GMC Yukon XL 2500, and Pontiac G8
- Part number 77-7121F ensures proper fit and function
- Includes important programming and installation considerations
About the Cardone Engine Control Module Product Line
The Cardone Engine Control Module product line focuses on delivering reliable and precise engine management solutions. This line of ECMs is designed to meet or exceed OEM specifications, providing accurate control of fuel injection, ignition timing, and emissions systems. The 77-7121F ECM is part of this product line, ensuring compatibility and performance for a range of GM vehicles.
Detailed Product Description
The Cardone 77-7121F ECM is a critical component that controls engine operations by processing data from various sensors and adjusting engine parameters accordingly. It is compatible with a wide range of GM vehicles including the Chevrolet Corvette, GMC Sierra 3500 HD, Cadillac Escalade ESV, and Saturn Aura. This ECM supports complex engine functions and is essential for maintaining optimal engine performance, fuel efficiency, and emissions compliance.
Common Issues Resolved by This ECM
- Engine stalling or failure to start
- Check engine light illumination due to ECM faults
- Poor fuel economy or engine misfires
- Erratic engine performance or hesitation
- Failure to communicate with vehicle’s anti-theft system
Installation Notes and Tips
- Verify vehicle compatibility with the part number 77-7121F before installation
- Some Chrysler PCM units with a "v" suffix require VIN programming
- Not all Ford vehicles require passive anti-theft system (P.A.T.S.) reset; check system requirements
- Use a compatible diagnostic scanner such as a Tech 2 to perform necessary programming and resets
- Ensure the original ECM/PCM is properly diagnosed as faulty before replacement
Quality Assurance and Warranty
Cardone ECMs are remanufactured to meet strict quality standards and undergo thorough testing to ensure reliable operation. While specific warranty details for part number 77-7121F should be confirmed at the point of purchase, Cardone typically offers limited warranties covering defects in materials and workmanship.
This part fits 39 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Pontiac | G8 | 6.0L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Cadillac | Escalade | 6.2L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Cadillac | Escalade ESV | 6.2L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Cadillac | Escalade EXT | 6.2L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Avalanche | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module | ||
| 2007 | Chevrolet | Cheyenne | 5.3L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Corvette | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module | ||
| 2007 | Chevrolet | Equinox | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module | ||
| 2007 | Chevrolet | Impala | 3.9L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Impala | 3.5L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Malibu | 3.5L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Malibu | 3.9L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Monte Carlo | 3.5L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | Chevrolet | Silverado 1500 | 6.0L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Silverado 1500 | 4.8L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | Chevrolet | Suburban 1500 | N/A | Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; with OE # 12589297, 12597121, 12603892, 19210738; Engine Control Module | ||
| 2007 | Chevrolet | Suburban 2500 | N/A | Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; with OE # 12589297, 12597121, 12603892, 19210738; Engine Control Module | ||
| 2007 | Chevrolet | Tahoe | N/A | Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; with OE # 12589297, 12597121, 12603892, 19210738; Engine Control Module | ||
| 2007 | GMC | Sierra 1500 | 5.3L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | GMC | Sierra 1500 | 6.0L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | GMC | Sierra 1500 | 5.3L | V8 | N/A | with OE # 12603892; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | GMC | Sierra 1500 | 4.8L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | GMC | Sierra 2500 HD | 6.0L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | GMC | Sierra 3500 HD | 6.0L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | GMC | Yukon | 6.2L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | GMC | Yukon | 5.3L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | GMC | Yukon | 4.8L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | GMC | Yukon XL 1500 | 6.2L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | with OE # 12589297, 12597121, 12603892, 19210738; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Engine Control Module |
| 2007 | GMC | Yukon XL 1500 | 6.0L | V8 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | GMC | Yukon XL 2500 | N/A | Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; with OE # 12589297, 12597121, 12603892, 19210738; Engine Control Module | ||
| 2007 | Pontiac | G6 | 3.9L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Pontiac | G6 | 3.5L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Pontiac | Torrent | 3.4L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2007 | Saturn | Aura | 3.5L | V6 | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
| 2006 | Chevrolet | Corvette | N/A | Vehicle specific Flash programming required on or off the vehicle; accurate VIN and mileage necessary; Engine Control Module |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.