Restore Your Vehicle’s Performance and Reliability
Is your vehicle suffering from a persistent Check Engine Light, rough idling, stalling, or a frustrating no-start condition? These are classic signs of a failing Engine Control Module (ECM), the critical brain of your vehicle’s powertrain. Don’t let a faulty computer keep you off the road. This direct-fit replacement ECM is the definitive solution to restore your vehicle’s performance, fuel efficiency, and dependability, arriving pre-programmed and ready for a straightforward installation.
Common Symptoms & Your Direct-Fit Solution
A failing ECM can cause a wide range of confusing and disruptive issues. If you’re experiencing any of the following, this module is designed to be the solution:
- Persistent Check Engine Light: Especially with diagnostic trouble codes (DTCs) like P0601, P0602, P0606, or other internal processor faults.
- Engine Performance Problems: Unexplained drops in fuel economy, engine misfires, hesitation during acceleration, or rough running.
- Starting Issues: The engine cranks but won’t start, or it starts intermittently.
- Transmission Shifting Problems: Harsh or erratic shifting that isn’t related to a mechanical transmission fault.
- Failed Emissions Test: Inability to pass smog or emissions testing due to ECM-related faults.
This professionally programmed 2006 Saturn Relay engine control module is engineered to resolve these issues by restoring the precise communication and control your engine needs to operate at peak efficiency.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash this module with the latest GM software updates using your vehicle’s specific VIN. This ensures 100% compatibility and eliminates the need for expensive dealership programming.
- ✔ Ready for Installation: Because the unit arrives pre-programmed, it’s ready for a simple, direct installation. In many cases, this restores vehicle operation immediately after a quick security relearn procedure.
- ✔ Restored Engine Performance: A new, correctly programmed ECM restores precise fuel delivery, ignition timing, and emissions control, bringing back the smooth and efficient performance you expect.
- ✔ Cost-Effective Solution: Avoid the high costs and scheduling delays of a dealership service department. This is a reliable, affordable fix that gets you back on the road quickly.
- ✔ Broad GM Compatibility: This single unit replaces a wide range of service numbers, including 12590032, 12602044, 12603530, 12605843, and more, making it a versatile solution for many GM cars, trucks, and SUVs.
- ✔ Guaranteed Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician, I’ve seen countless vehicle issues caused by improperly matched control modules. Simply installing a used ECM from another vehicle won’t work—it contains the wrong software and security information. That’s why our process is different. We don’t just sell you a part; we provide a complete solution. By programming the module to your exact VIN before it ships, we ensure the ECM communicates perfectly with your vehicle’s specific systems, from the engine and transmission to the anti-theft and instrument cluster. This crucial step prevents a host of frustrating problems and turns a complex repair into a manageable one.
By purchasing this 2006 Saturn Relay engine control module, you are not just buying a replacement part; you are investing in a pre-configured, vehicle-specific solution designed for a hassle-free installation and long-term reliability. We handle the complex programming so you can focus on getting your vehicle running perfectly again.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. The main benefit of our service is that we program the engine control module to your vehicle’s specific VIN before we ship it to you. It arrives ready to be installed, saving you a trip to the dealership and additional programming fees.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically find this on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this the correct ECM for my vehicle?
This module fits a very wide range of GM vehicles. Please carefully review the detailed fitment list on this page. The best way to confirm compatibility is to match the service number on your current ECM to one of the numbers listed in our description, such as 12602044, 12607096, or 19210737.
Will I need to do anything after installing the ECM?
In most GM vehicles, you will need to perform a simple security relearn procedure after installation. This typically involves cycling the ignition key and can be done without any special tools. This procedure syncs the new ECM with your vehicle’s anti-theft system.
What is the difference between an ECM, ECU, and PCM?
The terms are often used interchangeably. ECM (Engine Control Module) and ECU (Engine Control Unit) typically refer to the computer that controls engine functions. PCM (Powertrain Control Module) is a more integrated unit that often controls both the engine and the transmission. For the vehicles listed, this module serves as the primary powertrain computer.
Is this a guaranteed fix for my vehicle’s problem?
This 2006 Saturn Relay engine control module will resolve any issues directly caused by a faulty original ECM. However, it is essential that the vehicle has been properly diagnosed. This part will not fix problems related to other faulty sensors, wiring issues, or mechanical failures.