Programmed 2008 Escalade ESV Engine Control Module | ECM 12612384

### Programmed 2008 Escalade ESV Engine Control Module \| ECM 12612384   ## Restore Peak Performance to Your 2008 Cadillac Escalade ESV Is your 2008 Escalade ESV suffering from frustrating issues like a persistent check engine light, poor fuel mileage, or even a no-start condition? The Engine Control Module (ECM), the brain of your vehicle’s engine management system, is often the source of these complex problems. When it fails, it can disrupt everything from fuel injection to transmission shifting, turning your luxury SUV into a source of constant worry. This isn’t just an inconvenience; it’s a critical component failure that requires a reliable, direct-fit solution. We offer a dependable, professionally programmed **2008 Escalade ESV Engine Control Module** that solves these issues head-on. Forget the dealership headaches and high costs. We take the guesswork out of the repair by flashing this module with the latest GM-certified software updates, specifically tailored to your vehicle using your VIN. This ensures that when the part arrives, it’s ready to communicate perfectly with your Escalade’s existing systems, restoring the smooth, powerful performance you expect. #### A Technician’s Notebook: The Intermittent Stall Case I remember a 2008 Escalade ESV that came into my bay with a phantom problem: it would randomly stall at stoplights, but with no consistent check engine light. The owner had already replaced the battery and alternator. After hooking up my scan tool, I found a stored history code, U0100 – Lost Communication with ECM. In my 20+ years, I’ve learned that before condemning a module, you check the fundamentals. We inspected all power and ground connections to the ECM—they were solid. The issue was internal to the module itself, likely a failing processor from years of heat cycles. We installed a VIN-programmed ECM just like this one. The stalling vanished, and the owner was thrilled to have his reliable truck back without a massive dealership bill. ### Signs Your Engine Control Module is Failing A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs attention. Diagnosing these symptoms correctly is the first step toward a lasting repair for your **2008 Escalade ESV Engine Control Module**. - ✔ Check Engine Light is illuminated with communication codes (e.g., U0100) or internal processor failure codes (e.g., P0601, P0606). - ✔ Vehicle will not start or has a “crank, no-start” condition. - ✔ Noticeable decrease in fuel economy. - ✔ The engine stalls, stumbles, or misfires intermittently. - ✔ Automatic transmission shifts erratically or harshly. - ✔ Apparent loss of power and poor acceleration. - ✔ Other warning lights (ABS, Traction Control) may illuminate without a clear cause. ## A Straightforward Guide to Installation Installing your new **2008 Escalade ESV Engine Control Module** is a manageable job for a DIY enthusiast with basic tools. On this specific vehicle, the ECM is located in the engine bay, on the driver’s side, underneath the battery and its tray. 1. **Safety First:** Always disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental power surges. 2. **Access the Module:** Remove the battery hold-down and the battery itself. Next, you will need to unbolt and remove the battery tray to gain clear access to the ECM mounted below it. 3. **Disconnect the Old ECM:** Carefully unplug the electrical connectors from the old module. There are typically release tabs that need to be depressed or lifted. Take a photo beforehand if you’re unsure of their orientation. 4. **Remove the Old Unit:** Unbolt the old ECM from its mounting bracket and remove it from the vehicle. 5. **Install the New ECM:** Mount your new, pre-programmed module onto the bracket, ensuring it is secure. Reconnect the electrical connectors, making sure they click firmly into place. 6. **Reassemble:** Reinstall the battery tray and the battery. Reconnect the negative battery terminal. 7. **Security Relearn:** In many cases, you will need to perform a simple security relearn procedure (often called the Passlock or anti-theft relearn) to allow the vehicle to start. This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. Consult your owner’s manual or a reliable online resource for the exact steps for your vehicle. ## Will This Fit My Vehicle? This module is a direct-fit replacement for a wide range of GM vehicles. Please verify your vehicle, year, and engine size from the list below. This unit is a compatible replacement for part numbers **12612384**, **12622141**, and **12617568**. AVALANCHE 1500 08 (LH front under battery) AURA 08 3.5L (RH firewall) CAPRICE 11 (ID **12612384**) CORVETTE 08 (RH engine compartment) CORVETTE 09 Z06 (RH engine compartment) CTS 08 3.6L, VIN 7 (ID **12612384**) EQUINOX 08-09 3.4L (LH engine compartment) ESCALADE 08 (LH front under battery) ESCALADE ESV 08 (LH front under battery) ESCALADE EXT 08 (LH front under battery) EXPRESS 1500 VAN 08 5.3L (LH rear engine compartment) EXPRESS 2500 VAN 08 Gasoline (LH rear engine compartment) EXPRESS 3500 VAN 08 Gasoline (LH rear engine compartment) G6 08 3.5L or 3.9L (LH front engine compartment) HUMMER H2 08 (LH front under battery) IMPALA 08 3.5L or 3.9L (lower part of air cleaner box) MALIBU 08 Classic Style, 3.5L MALIBU 08 New Style, 3.5L SAVANA 1500 VAN 08 5.3L (LH rear engine compartment) SAVANA 2500 VAN 08 Gasoline (LH rear engine compartment) SAVANA 3500 VAN 08 Gasoline (LH rear engine compartment) SIERRA 1500 PICKUP 08 w/o 4.3L (LH front under battery) SIERRA 2500 PICKUP 08 6.0L (LH front under battery) SIERRA 3500 PICKUP 08 6.0L (LH front under battery) SIERRA DENALI 08 (LH front engine compartment) SILVERADO 1500 PICKUP 08 w/o 4.3L (LH front under battery) SILVERADO 2500 PICKUP 08 6.0L (LH front under battery) SILVERADO 3500 PICKUP 08 6.0L (LH front under battery) SUBURBAN 1500 08 (LH front under battery) SUBURBAN 2500 08 (LH front under battery) TAHOE 08 w/o hybrid (LH front under battery) TORRENT 08-09 3.4L (LH engine compartment) VUE 08-09 3.5L YUKON 08 w/o hybrid (LH front under battery) YUKON XL 1500 08 (LH front under battery) YUKON XL 2500 08 (LH front under battery) ## Frequently Asked Questions ### Frequently Asked Questions **What does ‘VIN Programmed’ mean?** It means we load the module with the specific software and calibrations for your exact vehicle using your Vehicle Identification Number (VIN). This ensures it works correctly with your engine, transmission, and options, eliminating the need for a trip to the dealer for expensive programming. **Is this part truly plug-and-play?** Almost. After physical installation, you will likely need to perform a simple, tool-free anti-theft relearn procedure. This syncs the new ECM to your vehicle’s security system and allows the engine to start. We provide instructions for this easy process. **Will this fix my check engine light?** If the check engine light is caused by a faulty ECM (common codes P0601, P0606, U0100), then yes, this module is the correct solution. However, you should always ensure other potential issues (like wiring or sensors) have been ruled out for a complete diagnosis. **Do I need to send my old module (core) back?** No core charge or return is required for this specific part. You can keep or responsibly dispose of your old module. **What information do you need from me?** After you complete your purchase, we will need the 17-digit VIN from your vehicle. You can typically find this on your driver’s side dashboard (visible through the windshield) or on your vehicle’s registration or insurance card. **Is this compatible with other part numbers?** Yes, this ECM is a direct, interchangeable replacement for part numbers **12612384**, **12622141**, and **12617568**, covering a wide range of GM applications. 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
• Superseded Part Number: 12617568, 12612384, 12622141
• Manufacturer Part Number: 12612384
• Manufacturer Warranty: 1 Year
• Genuine OEM: Yes
• Interchange Part Number: 590-00882
• Type: E38
• Model: Escalade Esv
• Year: 2008
• Brand: GM