Restore Your Truck’s Performance with a Plug-and-Play Solution
Is your Sierra, Silverado, or Express Van running rough, stalling unexpectedly, or throwing a persistent check engine light? A failing Engine Control Module (ECM) is often the culprit. As the central computer of your vehicle, a faulty ECM can cause a wide range of frustrating and difficult-to-diagnose issues. This isn’t just an inconvenience; it affects your truck’s reliability, fuel economy, and power. Stop chasing symptoms and replace the core problem with a reliable, ready-to-install solution.
This ECM, part number 12692200, is the definitive fix. We take the guesswork and dealership hassle out of the equation. Before we ship it, our technicians will program the module with the latest official GM software, specifically matched to your vehicle using your VIN. This means it arrives at your door ready for installation, saving you hundreds of dollars in dealership programming fees and getting your truck back to factory-spec performance. This is the same high-quality component trusted by professional shops for a dependable repair.
Real-World Repair Story
Real-World Repair Story
A customer brought in his 2014 Silverado 2500 with the 6.0L V8. The complaint was intermittent stalling at stoplights and a recurring P0601 code (Internal Control Module Memory Check Sum Error). We checked all the basics—battery, grounds, wiring harness—and everything looked perfect. The symptoms were so random that the owner was ready to give up. From my experience, these intermittent electrical gremlins, especially with a P0601 code, almost always point to a failing processor inside the ECM itself. We installed one of our VIN-programmed modules, performed the 10-minute security relearn, and the truck ran perfectly. The customer called a month later to say the problem was completely gone. This part saved him from endless diagnostic fees and the frustration of an unreliable work truck.
Is Your GM Vehicle Showing These ECM Failure Signs?
- âś” Check Engine Light is on with codes like P0601, P0606, or U0100 (Lost Communication).
- âś” The engine cranks but refuses to start.
- âś” Noticeable drop in fuel economy.
- âś” Rough or unstable idle.
- âś” Engine stalling or hesitating during acceleration.
- âś” Automatic transmission shifts harshly or at the wrong times.
- âś” Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
- âś” Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- âś” Locate the ECM: On most Sierra and Silverado trucks, the ECM is located in the front left (driver’s side) of the engine compartment, near the battery or air filter box.
- âś” Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- âś” Install the New Module: Bolt the new, pre-programmed ECM into place. Securely reconnect the wiring harness connectors, ensuring they click into place.
- âś” Reconnect Power: Reattach the negative battery terminal.
- âś” Perform Security Relearn: Most GM vehicles require a simple security relearn. Turn the key to the ‘ON’ position (without starting the engine) for 10-12 minutes, then turn it off for 10 seconds. Repeat this process two more times. On the fourth attempt, the vehicle should start and run normally.
Will This Fit My Vehicle?
This Engine Control Module is a direct-fit replacement for a wide range of General Motors vehicles. Please verify your model and part number below. Providing your VIN at checkout ensures we send you a perfectly matched and programmed computer.
CRUZE 16 Electronic Control Module; VIN P (4th digit, Limited)
SONIC 12 Electronic Control Module; 1.4L
ELR 14-16 Electronic Control Module; gasoline, (LH rear engine compartment)
EXPRESS 3500 VAN 16 Electronic Control Module; (LH rear engine compartment), 4.8L
CRUZE 12 Electronic Control Module; 1.4L
CRUZE 15 Electronic Control Module; gasoline, ID 12668866
SONIC 15 Electronic Control Module; ID 12668866
TRAX 13-14 Electronic Control Module; 1.4L
SONIC 13 Electronic Control Module; ID 12643636
EXPRESS 3500 VAN 16 Electronic Control Module; (LH rear engine compartment), 6.0L
SAVANA 3500 VAN 16 Electronic Control Module; (LH rear engine compartment), 6.0L
EXPRESS 2500 VAN 16 Electronic Control Module; (LH rear engine compartment), 6.0L
SONIC 14 Electronic Control Module; (ID 12643636)
EXPRESS 2500 VAN 16 Electronic Control Module; (LH rear engine compartment), 4.8L
SILVERADO 2500 PICKUP 12-16 Electronic Control Module; (LH front engine compartment), 6.0L
SILVERADO 3500 PICKUP 12-16 Electronic Control Module; (LH front engine compartment), 6.0L
VOLT 11-15 Electronic Control Module; gasoline, (LH rear engine compartment)
SAVANA 2500 VAN 16 Electronic Control Module; (LH rear engine compartment), 4.8L
CRUZE 14 Electronic Control Module; gasoline
SAVANA 2500 VAN 16 Electronic Control Module; (LH rear engine compartment), 6.0L
SONIC 16 Electronic Control Module
CRUZE 13 Electronic Control Module
ENCORE 15 Electronic Control Module; (1.4L), ID 12643636
ENCORE 16 Electronic Control Module; (1.4L), VIN B (8th digit, opt LUV)
SAVANA 3500 VAN 16 Electronic Control Module; (LH rear engine compartment), 4.8L
SIERRA 2500 PICKUP 12-16 Electronic Control Module; (LH front engine compartment), 6.0L
SIERRA 3500 PICKUP 12-16 Electronic Control Module; (LH front engine compartment), 6.0L
TRAX 15-16 Electronic Control Module
SIERRA DENALI 2500 12-15 Electronic Control Module; (LH front engine compartment), 6.0L
SUBURBAN 3500 16 Electronic Control Module; (LH front engine compartment)
ENCORE 13-14 Electronic Control Module; (1.4L)
SPARK 14-15 Electronic Control Module; gasoline model
SIERRA DENALI 3500 12-16 Electronic Control Module; (LH front engine compartment), 6.0L
ENCORE 15 Electronic Control Module; (1.4L), ID 12668866
SONIC 15 Electronic Control Module; ID 12643636
Frequently Asked Questions
- Do I need to program this 2012-2016 Sierra Denali 2500 ECM?
- No. We handle all the programming for you before shipment. All we need is your vehicle’s 17-digit VIN to load the correct, updated GM software. It arrives ready to install.
- What information do you need from me?
- After you place your order, simply provide us with your vehicle’s VIN. You can typically add this in the notes section at checkout or send it in a follow-up message.
- Is a key relearn or security relearn required after installation?
- Yes, in most cases you will need to perform a simple security relearn procedure, which syncs the new ECM to your vehicle’s anti-theft system. This process usually takes about 30 minutes and does not require any special tools.
- Where is the ECM located on my Sierra or Silverado?
- On the 2012-2016 GM HD trucks with the 6.0L engine, the ECM is found in the engine bay on the driver’s side, mounted near the fender and air intake box.
- Will this fix my check engine light?
- If your check engine light is caused by an internal failure of the existing ECM (common codes include P0601, P0602, P0606), then this replacement module will resolve the issue once installed correctly.