Restore Peak Performance to Your GM Vehicle
Is your 2007 Yukon XL 1500, Silverado, or Tahoe suffering from frustrating issues like stalling, erratic shifting, a persistent Check Engine Light, or a no-start condition? These are classic signs of a failing Engine Control Module (ECM), the computer that acts as your vehicle’s brain. When it falters, everything from fuel economy to engine stability is compromised. This isn’t just an annoyance; it can leave you stranded. I’ve seen countless vehicles in my shop with these exact symptoms, where the root cause was a faulty ECM.
This replacement Engine Control Module, part number 19210738, is the definitive solution. We take the guesswork and hassle out of the repair. Before this module ships, we program it with the latest official GM software, specifically matched to your vehicle using the VIN you provide. This means it arrives at your door ready for installation, saving you a costly trip to the dealership for programming. You get a reliable part that restores factory performance and communication between all your vehicle’s critical systems.
From the Diagnostic Bay: The Case of the Confusing Codes
A customer brought in his ’07 Sierra 1500. It was throwing a whole Christmas tree of codes—U0100 for lost communication, P0300 for random misfires, and a couple of transmission codes. He’d already replaced spark plugs and a coil pack with no luck. The parts cannon was firing blanks. After hooking up my scan tool and monitoring live data, I saw the ECM’s voltage reference was fluctuating wildly. The module itself was failing internally, causing the communication network to go haywire. We installed one of these VIN-programmed modules, performed the security relearn, and the truck ran perfectly. All codes cleared and stayed cleared. It’s a prime example of how a single failing module can mimic multiple other problems.
Is Your GM Vehicle Showing These ECM Failure Signs?
- âś” Check Engine Light is illuminated with codes like P0601, P0602, P0606, or U0100.
- âś” The engine cranks but refuses to start.
- âś” Unexplained drops in fuel efficiency.
- âś” The engine stalls, hesitates, or runs rough.
- âś” Automatic transmission shifts harshly or at the wrong times.
- âś” Failure to pass state emissions testing.
- âś” Communication errors with your scan tool.
A Straightforward Guide to Installation
Replacing your 2007 Yukon XL 1500 ECM is a manageable job for a DIYer with basic tools. Follow these steps carefully for a smooth installation.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow the system to fully discharge.
- Locate the ECM: On most compatible trucks and SUVs like the Yukon, Tahoe, and Silverado, the ECM is located under the hood on the driver’s side, often under or near the battery tray.
- Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harnesses and pull them straight out from the module. Do not force them. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will reuse it.
- Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn: This is a critical final step. Turn the key to the ‘ON’ position (without starting the engine) for 10-15 minutes. The security light on the dash should turn off. Turn the key off for 10 seconds, then repeat the process two more times. After the third cycle, the vehicle should start and run normally.
Verified Fitment for a Wide Range of GM Models
This module is a direct replacement for part numbers 12589297, 12597121, 12603892, and 19210738. It is confirmed to fit the following vehicles:
ESCALADE ESV 07 (LH front under battery)
ESCALADE EXT 07 (LH front under battery)
AVALANCHE 1500 07 (LH front under battery)
SUBURBAN 1500 & 2500 07 (LH front under battery)
TAHOE 07 (LH front under battery)
YUKON & YUKON XL 1500/2500 07 (LH front under battery)
SIERRA & SILVERADO 1500/2500/3500 07 (New Body Style, LH front under battery)
SIERRA DENALI 07 (New Body Style, LH front engine compartment)
HUMMER H2 07 (LH front under battery)
CORVETTE 06-07 (RH engine compartment)
AURA 07 (3.5L, RH firewall)
G6 07 (3.5L or 3.9L, LH front engine compartment)
G8 08 (6.0L)
IMPALA & MONTE CARLO 07 (3.5L or 3.9L, lower air cleaner box)
MALIBU 07 (3.5L or 3.9L)
EQUINOX & TORRENT 07 (LH engine compartment)
Frequently Asked Questions
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is essential. We use it to load the correct, vehicle-specific GM software and updates onto the module, ensuring it communicates perfectly with your engine, transmission, and other systems.
Is this part difficult to install?
For someone with basic mechanical skills, it’s a very manageable job. The main steps are disconnecting the battery, swapping the module, and performing the security relearn procedure. No special programming tools are required on your end.
What is the security relearn procedure?
It’s a simple process that syncs the new ECM to your vehicle’s anti-theft system. It typically involves cycling the ignition key and waiting for about 30 minutes in total. We include detailed instructions to walk you through it.
Will this fix my check engine light?
If the check engine light and other symptoms are being caused by a faulty ECM, then yes, this part is the correct fix. It’s crucial to properly diagnose the issue first, as other failing sensors can sometimes mimic ECM problems.
Is this compatible with other part numbers?
Yes, this module is a direct, interchangeable replacement for GM part numbers 12589297, 12597121, and 12603892, in addition to 19210738.