Restore Peak Performance to Your Vehicle
Is your 2007 Cadillac SRX or another compatible GM vehicle suffering from perplexing issues like stalling, a persistent check engine light, or a no-start condition? The Engine Control Module (ECM), often called the Powertrain Control Module (PCM), is the central computer responsible for managing your engine’s performance, fuel efficiency, and emissions. When it begins to fail, it can create a host of problems that are often misdiagnosed, leading to costly and unnecessary repairs. This genuine, used OEM ECM, part number 19210736 (interchangeable with 12605843), is the definitive solution to get your vehicle running smoothly again.
Unlike a generic part from a local auto parts store, this module is not just a replacement; it’s a fully integrated solution. We program the module specifically for your vehicle using your unique Vehicle Identification Number (VIN). This process loads the latest, most stable software updates directly from GM, ensuring that all factory parameters for your engine and transmission are perfectly matched. This critical step eliminates compatibility issues and ensures a seamless, plug-and-play installation process, getting you back on the road with confidence and restored reliability.
From the Diagnostic Bay
We recently had a 2007 Pontiac G6 with the 3.6L engine towed to the shop. The owner was frustrated, having already replaced the throttle body and all six spark plugs trying to solve an intermittent stalling and hard-starting issue. The check engine light was on, but the codes were all over the place—communication errors, random misfires, and throttle position sensor faults. Instead of continuing to chase ghosts, we focused on the common denominator: the ECM. A quick test confirmed the module was failing internally. We sourced a quality used unit, just like this one, programmed it to the car’s VIN, and performed the necessary security relearn. The car fired up instantly and ran perfectly. The customer could have saved hundreds of dollars and weeks of headaches by addressing the core problem first—the failing 2007 SRX Engine Computer architecture that his G6 shared.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) that won’t clear or returns immediately.
- ✔ Engine stalling or shutting off unexpectedly while driving.
- ✔ No-start or hard-start conditions, where the engine cranks but won’t turn over.
- ✔ Noticeable decrease in fuel economy.
- ✔ Rough or erratic idling and poor engine performance.
- ✔ Hesitation or stumbling during acceleration.
- ✔ Communication error codes (like U0100) when scanned with a diagnostic tool.
- ✔ Issues with automatic transmission shifting, such as harsh or delayed shifts.
Why a VIN-Programmed Module is Essential
The ECM in modern vehicles is highly sophisticated. It communicates with dozens of other modules, from the transmission controller to the anti-lock brake system. Your vehicle’s VIN contains specific information about its engine, transmission, emissions systems, and optional features. Programming this 2007 SRX Engine Computer with your VIN ensures it has the exact software calibration required for your specific build. This is not just about making the engine run; it’s about optimizing fuel delivery, ignition timing, and transmission behavior for maximum efficiency and longevity. Attempting to install a non-programmed module will, at best, result in poor performance and, at worst, prevent the vehicle from starting at all due to anti-theft system conflicts.
Simple, Hassle-Free Process
- Purchase: Complete your order for this ECM.
- Provide VIN: Reply to your order confirmation email or use the contact form on our site to send us your 17-digit VIN.
- Programming: Our technicians will flash the module with the latest GM software matched to your VIN.
- Shipment: We ship the ready-to-install module directly to you.
This part is a tested, used component sourced from a salvaged vehicle, offering a reliable and cost-effective alternative to a brand-new dealership part. It’s the smart choice for both DIY mechanics and professional repair shops.
Frequently Asked Questions
What is the difference between an ECM and a PCM?
The terms are often used interchangeably. An ECM (Engine Control Module) specifically controls engine functions. A PCM (Powertrain Control Module) is an integrated unit that controls both the engine and the transmission. For most vehicles this part fits, it functions as the PCM.
Do I need to do anything after installing this module?
In many cases, it is a direct plug-and-play installation. However, some GM vehicles may require a security relearn procedure (often called a Passlock or VATS relearn) or a crankshaft position sensor variation relearn. These procedures are straightforward and can often be done without special tools, or with a capable bi-directional scan tool.
How do I provide my VIN?
After you place your order, you will receive an order confirmation email. Simply reply to that email with your 17-digit VIN. You can find your VIN on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your insurance and registration documents.
Is this a new part?
No, this is a genuine OEM part that has been sourced from a used, salvaged vehicle. Each unit is inspected and tested to ensure it is fully functional before being programmed and shipped.
Why is programming so important?
Programming loads the correct software and calibrations for your vehicle’s specific engine, transmission, and options. Without the correct programming, the vehicle may not start, run poorly, have a check engine light on, or fail an emissions test.
Will this fix my car’s problem for sure?
This module will resolve any issues directly caused by a faulty ECM. However, it’s crucial to ensure a proper diagnosis has been performed. This part will not fix problems related to other failed components, such as bad sensors or wiring issues.