Are you battling a persistent Check Engine Light, unpredictable stalling, or a car that simply refuses to start? The frustration of a faulty engine computer can bring your daily life to a halt. It’s time to stop guessing and install a definitive solution. This Engine Control Module (ECM), service number 12597125, is the reliable heart your vehicle needs, arriving pre-programmed with the latest GM software specifically for your vehicle’s VIN.
Forget about expensive dealership visits and the hassle of programming tools. We handle the complex part for you. By flashing the unit to match your car’s unique identity, we deliver a component that’s ready for installation right out of the box. This isn’t just a replacement part; it’s a restoration of your vehicle’s performance, efficiency, and dependability. Regain the confidence of a smooth-running engine and the peace of mind that comes with a solid, professional-grade repair.
A Mechanic’s Note: The Diagnostic Dead End
I once had a 2010 Malibu in the bay that was a real head-scratcher. The owner had already replaced the throttle body and two O2 sensors chasing phantom codes. The car would run fine for a day, then suddenly start sputtering and stalling at lights. After hours of diagnostics, we found the culprit: the original ECM was failing intermittently, sending corrupt data to otherwise healthy components. Installing a properly programmed ECM didn’t just fix the problem—it saved the owner from spending hundreds more on unnecessary parts. This is why a reliable, correctly programmed module is the most critical part of the repair.
Warning Signs Your ECM is Failing
- ✔ Persistent Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like U0100 or P0606.
- ✔ Unexplained drops in fuel economy and poor engine performance.
- ✔ The engine cranks but refuses to start, or starts only intermittently.
- ✔ Transmission shifting issues or harsh engagement.
- ✔ Your scanner cannot communicate with the engine module.
- ✔ Complete restoration of communication between vehicle systems.
Guided Installation for a Confident Repair
Installing your new 2007-2012 Malibu ECM is a straightforward process. Follow these steps to get back on the road quickly.
- Safety First: Always begin by disconnecting the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Old Module: Find the original ECM. On many of these models, it’s located in the engine bay, often near the battery or air filter housing.
- Careful Disconnection: Gently release the locking tabs on the electrical connectors and pull them straight out. Then, unbolt the module from its mounting bracket.
- Mount the New ECM: Secure your new, pre-programmed ECM in place with the original mounting hardware. Ensure it is firmly seated.
- Connect and Power Up: Plug the electrical harnesses into the new module until they click securely. Reconnect the negative battery terminal.
- Final Step: In most cases, you will need to perform a simple security relearn procedure, which typically involves cycling the key in the ignition. We provide easy-to-follow instructions for this process.
Tailored Fit for Your GM Vehicle
This module is a direct replacement for service number 12597125 and is compatible with several other part numbers including 12612397, 12594750, 12629019, 12635902, and 12611549. It is engineered to work seamlessly with the following vehicles:
MALIBU 10 Electronic Control Module; 3.5L
EXPRESS 1500 VAN 08-09 Electronic Control Module; (LH rear engine compartment), 4.3L
MALIBU 08 Electronic Control Module; classic style (emblem in grille), 2.2L
SIERRA 1500 PICKUP 09 Electronic Control Module; (LH front engine compartment), w/o hybrid option; w/4.3L
COBALT 08 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
COBALT 07-08 Electronic Control Module; (LH front engine compartment), 2.2L (VIN F, 8th digit, 4-134)
MALIBU 11-12 Electronic Control Module; 2.4L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/o hybrid
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/o hybrid
HHR 07-11 Electronic Control Module; (LH rear engine compartment), 2.2L
SIERRA 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/4.3L
SOLSTICE 08-10 Electronic Control Module; (LH front frame rail), 2.4L
COBALT 09 Electronic Control Module; (LH front engine compartment), 2.2L (VIN H, 8th digit, 4-134)
HHR 08-11 Electronic Control Module; (LH rear engine compartment), 2.4L
LUCERNE 09-11 Electronic Control Module; (lower part of air cleaner box), 3.9L
MALIBU 07 Electronic Control Module; 2.2L
VUE 08-09 Electronic Control Module; 2.4L, VIN P (8th digit, opt LE5)
VUE 10 Electronic Control Module; 2.4L
G6 08-09 Electronic Control Module; (LH front engine compartment), 2.4L
IMPALA 10-11 Electronic Control Module; (lower part of air cleaner box)
SIERRA 1500 PICKUP 07 Electronic Control Module; new style (smooth door skin), (LH front under battery), w/4.3L
COBALT 10 Electronic Control Module; (LH front engine compartment), 2.2L (VIN 5, 8th digit, 4-134)
MALIBU 09-10 Electronic Control Module; 2.4L, w/o hybrid
G6 10 Electronic Control Module; (LH front engine compartment)
SILVERADO 1500 PICKUP 09 Electronic Control Module; (LH front engine compartment), w/o hybrid option; w/4.3L
SKY 08-10 Electronic Control Module; (LH front frame rail), 2.4L
G5 07 Electronic Control Module; (LH front engine compartment), 2.2L (VIN F, 8th digit, 4-134)
G5 08-10 Electronic Control Module
SAVANA 1500 VAN 08-09 Electronic Control Module; (LH rear engine compartment), 4.3L
By purchasing this 2007-2012 Malibu ECM, you are choosing a path to a reliable, long-lasting repair that puts you back in control.
Frequently Asked Questions
Do I need to program this ECM?
No. This module comes fully pre-programmed to your vehicle’s specific VIN. We load the latest software from GM before shipping, so it’s ready for installation when it arrives.
What is a security relearn, and is it difficult?
A security relearn, or anti-theft relearn, syncs the new ECM with your vehicle’s existing keys. It’s a simple procedure that you can do yourself in about 10-15 minutes. It typically involves turning the key to the ‘ON’ position for a set time. We include clear, easy-to-follow instructions with your order.
How do I provide my VIN number?
After you complete your purchase, we will send you an email requesting your vehicle’s 17-digit VIN. Simply reply to that email, and our technicians will handle the rest. We cannot program and ship the module without it.
Will this part fix my specific problem?
This ECM will resolve all issues directly caused by a failing engine computer. However, it’s important to properly diagnose your vehicle, as other faulty components (like sensors or wiring) can sometimes mimic ECM failure. This part is the solution for confirmed ECM-related DTCs and symptoms.
Is this module compatible with other part numbers?
Yes, this ECM is a direct replacement for several service numbers, including 12597125, 12612397, 12594750, 12629019, 12635902, and 12611549. If your original module has one of these numbers, this part will work for you.