Programmed 2000-2002 Saturn S Series ECM | 21024986 | Plug & Play

### Programmed 2000-2002 Saturn S Series ECM \| 21024986 \| Plug & Play   ## Restore Your Saturn’s Dependability and Performance Is your reliable Saturn S Series suddenly giving you trouble? Stalling at stoplights, running rough, or flashing a persistent check engine light can be incredibly frustrating. These are classic signs that your vehicle’s Engine Control Module (ECM), the central computer, is failing. Don’t let a faulty computer keep your car off the road. This pre-programmed ECM is the simple, effective, and affordable solution to get your Saturn running smoothly again, restoring the dependability you count on every day. ### Common Symptoms & Your Solution A failing ECM can cause a wide range of confusing issues. If you’re experiencing any of the following, this part is your definitive solution: - **Check Engine Light:** Often with codes like P0601, P0603, or P0606 indicating an internal computer fault. - **No-Start or Hard Starting:** The engine cranks but refuses to start, or only starts after many attempts. - **Stalling and Rough Idle:** The engine may stall unexpectedly while driving or idle erratically. - **Poor Fuel Economy:** A sudden and unexplained drop in your miles per gallon. - **Erratic Automatic Transmission Shifting:** Harsh shifts, slipping, or failure to shift into gear. This unit is a direct-fit replacement, and our expert programming service makes the repair process straightforward. We take a quality, used OEM unit and flash it with the latest GM software updates specifically for your vehicle’s VIN. This ensures that when you receive your **2000-2002 Saturn S Series ECM**, it’s ready for a true plug-and-play installation. ### Features & Benefits - ✔ **VIN-Programmed for Your Saturn:** We flash the module with your specific vehicle information, eliminating the need for an expensive trip to the dealership for programming. - ✔ **Plug-and-Play Installation:** Once programmed, simply disconnect the old unit (located behind the battery) and plug this one in. No complex security relearn procedures are required. - ✔ **Cost-Effective Repair:** Get the reliability of an OEM part without the high cost of a new computer from the dealer. - ✔ **Guaranteed Compatibility:** This ECM is a direct replacement for part numbers **21025110**, **21025128**, **21009349**, and **21024986**. - ✔ **Restored Performance:** With the latest software updates, your engine and transmission will operate at peak efficiency and smoothness. - ✔ This unit is backed by our one-year replacement warranty. #### Expert Insight: Why Programming is Non-Negotiable From my 20 years of experience, I’ve seen countless Saturn owners buy a used computer from a salvage yard only to find their car still won’t start. That’s because the Saturn Vehicle Theft System (VTS) is tied directly to the original ECM. A mismatched computer will prevent the fuel injectors from firing. Our professional programming service not only loads your VIN but also correctly syncs the security information, making this **2000-2002 Saturn S Series ECM** truly ready to install. It’s the critical step that saves you from a tow to the dealer and hundreds in diagnostic and programming fees. ### Frequently Asked Questions **Is this ECM ready to install right out of the box?** Yes! After you place your order and provide us with your vehicle’s VIN, we will program the module. When it arrives, it is completely ready for a plug-and-play installation. No further programming is needed. **Where can I find my vehicle’s VIN?** Your 17-digit Vehicle Identification Number (VIN) can be found on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents. **Will this fix my check engine light?** This ECM will resolve any check engine light and running issues directly caused by a faulty computer (like internal processor fault codes). However, if your vehicle has other mechanical or electrical problems, the check engine light may remain. Proper diagnosis is always recommended. **My original part number is different. Will this still work?** Absolutely. This module is a direct replacement for several part numbers, including **21025110**, **21025128**, **21009349**, and **21024986**. As long as your vehicle is a 2000-2002 Saturn S Series with an automatic transmission, this is the correct part for you. **What tools do I need for installation?** Installation is simple and typically only requires basic hand tools, such as a socket set to disconnect the battery and remove the bracket holding the ECM in place. The **2000-2002 Saturn S Series ECM** is located in the engine compartment on the driver’s side, just behind the battery. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it. ### Shipping - **Processing Time:** Reliably shipped within 2-3 business days. ### Warranty Enjoy peace of mind with a **one-year replacement warranty** on this part, effective from the date you receive it. Labor costs are not covered. If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience. **Return Address:** **Highway71autoparts** **9131 Highway 71 NE** **Spicer, MN, 56288**

• Country of Origin: United States
• Manufacturer Part Number: 21025128
• Manufacturer Warranty: 1 Year
• Superseded Part Number: 21009349, 21024986, 21025110, 21025128
• Conditions & Options: Programmed to your VIN GM: 21025110 21025128 21009349 21024986
• Genuine OEM: Yes
• PartNumber: 590
• Model: SATURN S SERIES
• Make: SATURN
• Year: 2002
• Brand: Saturn
• Interchange Part Number: 590-05922