Restore Peak Performance to Your Vehicle’s Powertrain
The Engine Control Module (ECM), often called the vehicle’s main computer, is the central command center for your engine’s performance, fuel efficiency, and emissions. When it begins to fail, it can cause a cascade of confusing and frustrating problems, from a simple check engine light to a vehicle that won’t start at all. This replacement Engine Control Module, service number 12630457, is the definitive solution for a wide range of GM vehicles, including your 2006 Saturn Relay, ensuring your engine runs exactly as the manufacturer intended.
Is Your Vehicle Showing Signs of ECM Failure?
A faulty ECM can manifest in various ways, often mimicking other component failures. If you’re experiencing any of the following symptoms, a failing engine computer could be the root cause:
- ✔ Persistent Check Engine Light (CEL) that won’t clear, or multiple unrelated diagnostic trouble codes (DTCs) are present.
- ✔ Noticeable decrease in fuel economy.
- ✔ Engine performance issues such as rough idling, stalling, hesitation, or misfires.
- ✔ Unexplained transmission shifting problems or harsh shifts.
- ✔ The engine cranks but refuses to start.
- ✔ Intermittent issues with cooling fans or other electronically controlled components.
From the Diagnostic Bay
We once had a 2006 Uplander (which shares the same platform as the Relay) come into the shop with what the owner was convinced was a bad transmission. It was shifting erratically and sometimes wouldn’t go into gear. They had already spent a significant amount on fluid flushes and sensor replacements at another shop. After hooking up our professional scan tool, we noticed the data from the ECM to the Transmission Control Module (TCM) was inconsistent. The ECM was sending corrupt signals, causing the transmission to behave poorly. Instead of a costly transmission rebuild, we installed a VIN-programmed ECM just like this one. The shifting problems vanished instantly, and the vehicle drove like new. It’s a classic case of the ‘brain’ giving bad orders to the ‘body’.
The Direct Solution: Your Programmed 2006 Relay Engine Module
Don’t let a faulty computer keep your vehicle off the road. This module is your plug-and-play solution. We take the guesswork and high dealership costs out of the equation. When you purchase from us, you’re not just getting a part; you’re getting a fully prepared component. We use your vehicle’s unique Vehicle Identification Number (VIN) to flash the module with the latest, most stable software updates directly from GM. This critical step ensures that the computer is perfectly matched to your vehicle’s specific configuration, including its engine, transmission, and factory options.
Why VIN Programming is Essential
An ECM from a salvage yard or a non-programmed unit will not work correctly. It contains the data for the donor vehicle, which can lead to compatibility issues, immobilizer problems (preventing the car from starting), and incorrect engine operation. Our VIN programming service ensures:
- ✔ Correct communication with all other vehicle modules.
- ✔ Proper engine and transmission function.
- ✔ No anti-theft or immobilizer conflicts.
- ✔ The benefit of all factory software improvements for drivability and longevity.
This module is a direct replacement for several service numbers, including: 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. Please verify your part number or consult the extensive fitment list to confirm compatibility.
Frequently Asked Questions
Do I need to do any programming after I receive this ECM?
No. We program the module to your vehicle’s VIN before it ships. In some cases, a simple ‘security relearn’ or ‘crankshaft position sensor relearn’ may be required, which can typically be done without special tools. Instructions are readily available for these procedures.
What happens if I don’t provide my VIN?
We cannot ship the module without your VIN. The programming process is essential for the part to function in your vehicle. Please provide your 17-digit VIN during or after checkout to avoid delays.
Where is the ECM located on a 2006 Saturn Relay?
On the 2006 Saturn Relay, the Engine Control Module is typically located in the engine compartment on the driver’s side, often near the air filter housing or on the firewall.
Is this a new or used part?
This is a high-quality, tested, and guaranteed functional used OEM part that has been prepared with fresh, vehicle-specific software, ensuring reliable performance.
Will this fix my check engine light?
If the check engine light and associated codes are caused by a faulty ECM, this part will resolve the issue. It’s crucial to properly diagnose the problem first to ensure the ECM is the source of the fault.