Restore Your Engine’s Brain and Your Peace of Mind
Is your truck running rough, stalling unexpectedly, or showing a persistent Check Engine Light? The Engine Control Module (ECM) is the sophisticated brain of your vehicle, and when it falters, it can cause a host of frustrating and concerning issues. Don’t let a faulty computer keep you sidelined. This direct-fit Engine Control Module, part number 12622141, is the definitive solution, arriving at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step eliminates the need for expensive dealership programming, saving you time, money, and hassle. Regain the smooth performance and unwavering reliability you depend on, and get back to driving with complete confidence.
Warning Signs and How to Overcome Them
A failing ECM can manifest in confusing ways. If you’re experiencing any of the following, this module is the solution you need:
- ✔ Persistent Check Engine Light: Often with communication error codes like P0601, P0602, or P0606.
- ✔ Rough Idling or Stalling: The engine struggles to maintain a consistent RPM or cuts out entirely.
- ✔ Poor Fuel Economy: The engine isn’t receiving the correct signals for efficient fuel delivery, leading to more trips to the pump.
- ✔ Hesitation or Misfires: Your vehicle may stumble during acceleration as the ECM fails to manage ignition timing and fuel injection properly.
- ✔ No-Start Condition: In severe cases, the ECM can fail completely, preventing the engine from starting at all.
- ✔ Transmission Shifting Problems: The ECM works with the transmission controller, and a fault can lead to harsh or erratic shifting.
A Mechanic’s Story: The Dealer vs. DIY
“I had a customer with an ’08 Sierra, same platform as your Yukon, who was at his wit’s end. The truck would randomly stall at red lights. The dealership quoted him over a thousand dollars for a new computer and the labor to program it. He was about to give up on his beloved truck. I pointed him to one of these pre-programmed modules. He ordered it, and with a bit of guidance over the phone, he swapped it out himself in under an hour right in his driveway. The relief in his voice when it fired right up and idled perfectly was immense. He didn’t just save money; he regained the satisfaction and confidence of fixing his own vehicle.”
Guided Installation to Restore Peak Performance
Installing your new 2008 Yukon XL 2500 ECM is a straightforward process. With basic hand tools and this guide, you can complete the job with confidence. After you place your order, simply provide us with your VIN, and we’ll handle all the programming before it ships.
- Safety First: Begin by disconnecting the negative terminal on your vehicle’s battery to prevent any electrical shorts.
- Locate the Old ECM: On your Yukon, the ECM is typically found in the engine bay, on the driver’s side, underneath the battery tray. You may need to remove the battery to gain access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM in the same location. Ensure it is securely bolted down.
- Reconnect Everything: Firmly plug the electrical connectors into the new ECM until they click into place. Reinstall the battery and connect the negative battery terminal.
- Perform Security Relearn: Your vehicle may require a simple security relearn procedure (often called a ‘key-cycle’) to recognize the new module. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating 2-3 times before starting the engine. This allows the anti-theft system to sync with the new ECM.
Tailored Fit for Your Ride
This module is a direct replacement for part numbers 12612384, 12622141, and 12617568. While this listing is focused on the 2008 Yukon XL 2500 ECM, it is also confirmed to fit the following vehicles and configurations:
AURA 08 3.5L (RH firewall)
CAPRICE 11 ID 12612384
CORVETTE 08-09 (RH engine compartment)
CTS 08 3.6L, VIN 7, ID 12612384
EQUINOX 08-09 3.4L (LH engine compartment)
ESCALADE / ESV / EXT 08 (LH front under battery)
EXPRESS/SAVANA VANS 08 Gasoline Engines
G6 08 3.5L or 3.9L (LH front engine compartment)
HUMMER H2 08 (LH front under battery)
IMPALA 08 3.5L or 3.9L (lower air cleaner box)
MALIBU 08 Classic & New Style, 3.5L
SIERRA/SILVERADO 1500 08 (w/o 4.3L)
SIERRA/SILVERADO 2500/3500 08 6.0L
SUBURBAN 1500/2500 08 (LH front under battery)
TAHOE 08 (w/o hybrid option)
TORRENT 08-09 3.4L (LH engine compartment)
VUE 08-09 3.5L
YUKON / YUKON XL 1500 08 (w/o hybrid option)
YUKON XL 2500 08 (LH front under battery)
Frequently Asked Questions
What exactly is VIN programming?
VIN programming is the process of loading your vehicle’s unique 17-digit Vehicle Identification Number and its specific software configuration onto the module. This ensures the ECM communicates perfectly with your engine, transmission, anti-theft system, and other onboard electronics, just like the original part from the factory.
Do I need any special tools for installation?
No special programming tools are required. The installation can be done with basic hand tools like a socket set to remove the battery and the module’s mounting bolts. The most important part, the programming, is done by us before we ship it to you.
What happens if I don’t provide my VIN?
We cannot ship the module without your VIN. The programming is essential for the part to function in your vehicle. After you purchase, we will contact you to request the VIN to ensure a perfect match and a successful repair.
Is this a new or a used part?
This is a high-quality, inspected, and tested recycled OEM part. Each unit is verified for full functionality before being programmed with the latest GM-certified software for your vehicle, ensuring reliable, long-term performance.
Will this fix my specific check engine light codes?
This module is a direct solution for internal ECM failure codes, such as P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault). If your diagnostics point to a faulty computer, this part is designed to resolve those issues.