Programmed 2001-2003 Impala PCM 12210234 | ECM ECU | Plug & Play

### Programmed 2001-2003 Impala PCM 12210234 \| ECM ECU \| Plug & Play   Is your Chevrolet Impala, Pontiac Grand Prix, or Buick LeSabre suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) is often the hidden cause behind problems like harsh shifting, poor fuel economy, a persistent check engine light, or even a no-start condition. Stop replacing perfectly good sensors and address the root of the problem with this professionally programmed engine computer, designed to restore your vehicle’s original performance and reliability. This is a direct-fit replacement for GM part numbers **12209624** and **12210234**. We take the guesswork out of the repair by flashing the unit with the latest GM-released software updates, specifically matched to your vehicle’s unique VIN. This critical programming step ensures that once you receive the part, the installation is a straightforward, plug-and-play process, getting you back on the road quickly and confidently. ### Common Symptoms & Your Direct Solution If you’re experiencing any of the following, a failing PCM is the likely culprit: - Erratic or harsh automatic transmission shifting - Unexplained drop in fuel mileage (MPG) - Stalling or hesitation during acceleration - Failure to communicate with a scan tool - Random and multiple Diagnostic Trouble Codes (DTCs) - Vehicle will not start, despite having power This pre-programmed **2001-2003 Impala PCM 12210234** is the definitive solution to these complex electronic issues, providing a reliable and cost-effective alternative to a costly dealership visit. ### Features & Benefits - ✔ **Plug & Play Installation:** Arrives pre-programmed to your vehicle’s specific VIN. No additional programming is required after installation. - ✔ **Latest GM Software:** We flash each module with the newest factory updates, ensuring optimal engine performance, fuel efficiency, and emissions control. - ✔ **Guaranteed Compatibility:** By using your VIN, we ensure this computer is a perfect match for your vehicle’s engine, transmission, and options. - ✔ **Solves Drivability Issues:** Engineered to correct common electronic faults that cause poor performance and check engine lights. - ✔ **Cost-Effective Repair:** Get a dependable, ready-to-install solution without paying high dealership prices for parts and programming. - ✔ This unit is backed by our one-year replacement warranty. > #### Expert Insight: The Programming is Everything > > Many drivers chase drivability problems for weeks, replacing sensors and components only to have the issue return. We once assisted a customer with a 2002 Buick Regal who was experiencing a persistent harsh 1-2 shift. He had already replaced the transmission solenoids with no success. The real problem was outdated logic in his original PCM. A correctly programmed **2001-2003 Impala PCM 12210234** with the latest software calibrations solved his issue instantly. Proper programming isn’t just about making the car start; it’s about making it run, shift, and perform exactly as the engineers intended. ### Frequently Asked Questions **What do I need to do after installing this PCM?** In most cases, this is a direct plug-and-play unit. However, on some GM vehicles, you may need to perform a simple security relearn procedure, which involves turning the key on and off in a specific sequence. This procedure does not require any special tools and instructions can be easily found online or in your vehicle’s service manual. **Where do I provide my Vehicle Identification Number (VIN)?** After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship your part until we receive your VIN, as the programming is specific to your vehicle. **Is this a brand new part?** This is a quality, inspected, and tested OEM part that has been professionally programmed to function like new. Each unit is verified to ensure it meets or exceeds original factory specifications for performance and reliability. **How can I be sure my old PCM is the problem?** While the symptoms listed are strong indicators, it’s always best to have a qualified mechanic diagnose the vehicle. Common diagnostic steps include checking for communication with a scan tool and verifying power and ground signals at the PCM connector. If other components like sensors and wiring have been ruled out, the PCM is the most probable cause. **Will this fit vehicles other than the Impala?** Yes. This **2001-2003 Impala PCM 12210234** is compatible with a wide range of GM vehicles from 2001-2003, including the Monte Carlo, Grand Prix, Firebird, Camaro, Bonneville, LeSabre, Regal, and Park Avenue, primarily with the 3.8L V6 engine. Please verify the part number ( **12209624** or **12210234**) matches your original unit to ensure perfect fitment. 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: 12210234
• Manufacturer Warranty: 1 Year
• Superseded Part Number: 12210234, 12209624
• Genuine OEM: Yes
• Interchange Part Number: 590-05916
• PartNumber: 590
• Model: IMPALA
• Year: 2003
• Brand: GM