Engine Control Module - GM (12612397)

GM part 12612397 is a genuine GM Engine Control Module (ECM) Assembly, identified by GM as "Module Assembly, Engine Control (E37 No Start)". It is the engine computer that manages fuel injection, ignition timing, emissions controls, and other engine functions.

Part details

• GM Part Number: 12612397
• Description: Engine Control Module (ECM)
• Also referred to as: Engine Control Computer / ECM
• Replaces GM part 12597125 (some catalogs also list 12594750 as a predecessor).

Common applications This ECM is used on various 2007–2012 GM vehicles, including:

• Chevrolet Cobalt (2.2L, 2.4L)
• Chevrolet HHR (2.2L, 2.4L)
• Chevrolet Malibu (2.2L, 2.4L, 3.5L)
• Chevrolet Impala (3.5L, 3.9L)
• Chevrolet Silverado 1500 (4.3L V6)
• GMC Sierra 1500 (4.3L V6)
• GMC Savana (4.3L V6)
• Buick Lucerne
• Various Saturn models as well.

Important

• This module requires programming/calibration after installation.
• Correct fitment depends on the VIN, engine, transmission, emissions package, and vehicle options.

If you're looking up a list of parts for a specific vehicle, send the VIN and I can verify each part number and tell you exactly what it does and where it fits.

The GM Engine Control Module (ECM) MPN 12612397 is a genuine OEM powertrain computer that manages critical engine and transmission functions across select GM vehicles. This authentic General Motors engine control unit regulates fuel injection, ignition timing, and emissions systems to optimize performance, fuel efficiency, and reliability. As a factory-original ECM replacement, this part ensures your vehicle operates at manufacturer specifications.

- Genuine OEM Engine Control Module designed and tested by General Motors for precise vehicle diagnostics and system management
- Direct replacement for select GM vehicles requiring professional ECM programming and GM Service Information procedures
- Manages vital engine operations including fuel delivery, spark timing, and emission control for optimal performance
- Compatible with GM vehicles equipped with matching engine and transmission configurations; professional installation and specialized setup required
- Authentic General Motors part backed by OEM quality standards and engineering specifications