Restore Peak Performance to Your GM Vehicle
Is your truck or SUV suffering from baffling electrical gremlins? A faulty Engine Control Module (ECM) is often the culprit behind frustrating issues like poor fuel economy, a persistent check engine light, erratic engine behavior, or even a no-start condition. As the ‘brain’ of your vehicle’s engine management system, its health is non-negotiable. This isn’t just a replacement part; it’s a direct solution, a pre-programmed 2017 Escalade Engine Control Module that arrives ready to restore your vehicle’s factory-specified operation.
With over two decades of hands-on diagnostic experience, I’ve seen firsthand how a failing ECM can send mechanics and owners on a wild goose chase. You replace sensors and check wiring for hours, only to find the central computer itself was the issue. We take the guesswork and hassle out of the equation. By providing us with your Vehicle Identification Number (VIN) at checkout, we program this module with the latest, most stable software directly from GM. This ensures perfect communication between the ECM and all other vehicle systems, a critical step often overlooked.
A Technician’s Notebook: The Intermittent Stall Case
A 2017 Silverado 1500 was towed to my shop with a complaint of intermittent stalling at stoplights and a flashing check engine light. The owner had already replaced the throttle body and a camshaft position sensor with no luck. My scan tool pulled a P0606 (ECM/PCM Processor Fault). After verifying all power and ground circuits to the ECM were solid—a crucial first step—it was clear the module’s internal processor was failing. Instead of a costly dealer visit, we ordered a VIN-programmed unit like this one. After installation and a quick vehicle theft deterrent relearn, the truck ran perfectly. This pre-programmed solution saved my customer hundreds of dollars and got their truck back on the road the same day.
Common Signs of a Failing ECM
If you’re experiencing any of the following, a faulty engine computer could be to blame. This 2017 Escalade Engine Control Module is the definitive fix for these symptoms:
- ✔ Check Engine Light is on with codes like P0601, P0606, or other internal processor faults.
- ✔ Vehicle refuses to start or has difficulty starting.
- ✔ Unexplained drop in fuel mileage.
- ✔ Engine stalling, stuttering, or misfiring.
- ✔ Automatic transmission shifting erratically or harshly.
- ✔ Loss of communication with the scan tool (U-series codes).
- ✔ Apparent failure of multiple unrelated sensors at once.
Your Straightforward Installation Guide
Installing your new ECM is a manageable job for a seasoned DIYer or any professional technician. The most critical part is the post-installation relearn procedure.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the ECM: On most compatible trucks and SUVs (like the Tahoe, Sierra, Silverado), the ECM is found in the engine compartment on the driver’s side (LH). On vehicles like the Corvette, it may be under the dash on the passenger side (RH). Consult a service manual if you’re unsure.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that must be released. Once disconnected, unbolt the old module from its mounting bracket and remove it.
- Install the New Module: Bolt the new, pre-programmed ECM into place and securely reconnect the wiring harnesses. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- The Critical Relearn Step: Turn the key to the ‘ON’ position. In many cases, the vehicle will not start until a Vehicle Theft Deterrent System (VTDS) relearn is performed. This procedure requires a GM-compatible scan tool with access to TIS2Web or Techline Connect. This links the new ECM to your vehicle’s security system. Other procedures, like a crankshaft position variation relearn, may also be necessary. This is the responsibility of the installer.
Will This Fit My Vehicle?
We guarantee this module is the correct replacement for a wide variety of GM cars, trucks, and SUVs. Please verify your vehicle is on this list and that your original part number is among the compatible numbers provided: 12692068, 12704476, 12686382, 12674052, 12674472, 12678815.
This part fits the following makes and models with the specified options:
- ATS 2017: Electronic Control Module; (LH engine compartment), 3.6L, VIN Y (8th digit, opt LF4)
- CORVETTE 2017: Electronic Control Module; (RH cowl under dash)
- CTS 2017: Electronic Control Module; 6.2L (supercharged)
- CTS 2017: Electronic Control Module; 3.6L, VIN 8 (8th digit, opt LF3, twin turbo)
- ESCALADE & ESCALADE ESV 2017: Electronic Control Module; (engine compartment)
- SIERRA 1500 & DENALI 1500 2016-2017: Electronic Control Module; (LH front engine compartment)
- SIERRA 1500 & DENALI 1500 2018: Electronic Control Module; (LH front engine compartment), ID 12686382
- SILVERADO 1500 PICKUP 2016-2017: Electronic Control Module; (LH front engine compartment)
- SILVERADO 1500 PICKUP 2018: Electronic Control Module; (LH front engine compartment), ID 12686382
- SUBURBAN 1500 2017: Electronic Control Module; (LH front engine compartment)
- TAHOE 2017: Electronic Control Module; (LH front engine compartment)
- XTS 2017: Electronic Control Module; (3.6L), VIN 8 (8th digit, opt LF3)
- YUKON & YUKON XL 1500 2017: Electronic Control Module; (LH front engine compartment)
What exactly is a VIN-programmed ECM?
What exactly is a VIN-programmed ECM?
It means we load the module with the specific factory software for your vehicle using its unique 17-digit VIN. This ensures the ECM has the correct calibrations for your engine, transmission, and emissions equipment, providing a true plug-and-play (pending security relearn) solution without needing a trip to the dealer for initial flashing.
Is a security relearn always necessary?
On modern GM vehicles, yes. The ECM is a key component of the anti-theft system. When a new ECM is installed, the vehicle’s Body Control Module (BCM) and key fobs must be synchronized with it. If this step is skipped, the vehicle will recognize the ECM as foreign and engage the theft-lock, preventing it from starting. This requires a professional scan tool.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original ECM (e.g., codes P0601-P0606), then yes, this part is the correct fix. However, if the light is on due to a faulty sensor, wiring issue, or mechanical problem, you must fix that underlying issue first. This module will not fix a bad O2 sensor, for example.
How do I give you my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot program and ship the module without it. Please double-check the VIN for accuracy to prevent delays.
My old part number isn’t 12674472, but it’s on the list. Will this work?
Yes. Manufacturers often update part numbers over time due to small hardware or software revisions. The part numbers listed (like 12692068, 12704476, etc.) are all superseded by or interchangeable with this module. As long as your original part number is on our compatibility list, this is the correct replacement.