1997 Blazer S10 PCM 16229684 | Programmed to Your VIN | ECM Engine Computer

### 1997 Blazer S10 PCM 16229684 \| Programmed to Your VIN \| ECM Engine Computer   #### Restore Your Truck’s Performance and Reliability Is your 1997 Chevy S10, GMC Jimmy, or another compatible GM truck giving you headaches? If you’re dealing with frustrating issues like a persistent Check Engine Light, erratic engine behavior, stalling, or a no-start condition, the problem often lies with a failing Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for managing everything from fuel mixture and ignition timing to transmission shifting. When it fails, it can cause a cascade of problems that are often misdiagnosed. This isn’t just a replacement part; it’s a complete, reliable solution. We take a genuine OEM Electronic Control Module (part number **16229684**) and program it specifically to your vehicle’s Vehicle Identification Number (VIN). This critical step ensures perfect compatibility and loads the latest GM software updates, which can correct factory-level drivability issues you may not have even known about. By providing your VIN at checkout, you receive a module that is truly plug-and-play, eliminating the need for expensive dealership programming or specialized scan tools. ### Common Signs of a Failing PCM - ✔ Your vehicle cranks but refuses to start. - ✔ The engine runs rough, misfires, or stalls unexpectedly. - ✔ You’re experiencing a noticeable decrease in fuel economy. - ✔ The transmission shifts harshly or at the wrong times. - ✔ You have an illuminated Check Engine Light with codes like P0601 (Internal Control Module Memory Check Sum Error) or other communication faults. - ✔ Failure to pass an emissions or smog test. #### Case Study: A Tricky Diagnosis I remember a 1997 GMC Sonoma with the 4.3L V6 that came into my shop a few years back. The owner had already replaced the spark plugs, wires, and even the fuel pump chasing an intermittent stalling problem. The codes were all over the place—random misfires, O2 sensor faults—but nothing consistent. After checking the sensor data streams on my scanner, I noticed the fuel trim values would suddenly drop out for no reason. This pointed to a processing error inside the computer itself. We installed a VIN-programmed **1997 Blazer S10 PCM**, performed the quick security relearn, and the truck ran perfectly. The owner had spent hundreds on parts he didn’t need, when the core issue was the failing module all along. This highlights how a faulty PCM can send you down the wrong diagnostic path. ## A Straightforward Guide to Installation Installing your new **1997 Blazer S10 PCM** is a simple process that most DIYers can complete in under an hour. This module is typically located in the engine compartment on the driver’s side, near the battery or firewall. 1. **Safety First:** Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts. 2. **Locate the PCM:** Identify the old PCM in the engine bay. It’s a metal box with several large electrical connectors. 3. **Disconnect the Connectors:** Carefully unlatch and remove the wiring harness connectors from the old module. Inspect them for any corrosion or damage. 4. **Remove the Old Module:** Unbolt the PCM from its mounting bracket and remove it from the vehicle. 5. **Install the New Module:** Bolt your new, pre-programmed PCM into place. Reconnect the wiring harness connectors, ensuring they click securely into place. 6. **Reconnect the Battery:** Reattach the negative battery terminal. 7. **Perform Security Relearn (If Necessary):** On many of these GM vehicles, you may need to perform a simple security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating two more times. This allows the vehicle’s security system to recognize the new PCM. Your vehicle may start and stall once before this procedure is complete. ### Verified Vehicle Compatibility This module is a direct-fit replacement for part numbers **16229684** and **8162296840** and is guaranteed to be compatible with the following 1997 models. Please provide your VIN to ensure we send the correctly programmed unit for your specific vehicle and options. - ✔ 1997 Astro / Safari (GMC) - ✔ 1997 Blazer S10 / Jimmy S15 (4.3L) - ✔ 1997 Bravada (4.3L) - ✔ 1997 Chevrolet / GMC 1500, 2500, 3500 Pickup (Gasoline) - ✔ 1997 Express / Savana 1500, 2500, 3500 Van (Gasoline) - ✔ 1997 Isuzu Hombre (4.3L) - ✔ 1997 S10 / S15 / Sonoma (4.3L) - ✔ 1997 Suburban 1500 / 2500 (Gasoline) - ✔ 1997 Tahoe / Yukon (Gasoline) ### Frequently Asked Questions **Do I need to do anything after I install this PCM?** Because this module comes pre-programmed to your VIN, no further programming is required. However, you will likely need to perform a security relearn and a Crankshaft Variation (CASE) relearn, which can be done with many mid-range scan tools or by a local shop. This ensures the PCM communicates correctly with your engine’s sensors for optimal performance. **Why do you need my VIN?** Your VIN is essential. It allows us to load the exact, correct software calibration from GM for your specific engine, transmission, and vehicle options. This guarantees compatibility and proper function right out of the box. **Is this a rebuilt or repaired part?** This is a high-quality, inspected, and tested OEM component. We ensure all internal components are functioning to factory specifications before programming it with the latest software for your vehicle. **Will this fix my transmission shifting problems?** In many cases, yes. The PCM controls transmission line pressure and shift points. If your module is failing, it can cause harsh shifts, delayed engagement, or hunting for gears. A new, correctly programmed PCM often resolves these issues. **What if my part number is slightly different?** This module, part number **16229684**, also replaces the alternative part number **8162296840**. As long as your vehicle is on the compatibility list, this VIN-programmed unit is the correct solution for you. 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: 16229684
• Manufacturer Warranty: 1 Year
• Superseded Part Number: 16229684
• Conditions & Options: Programmed to your VIN GM: 16229684
• Genuine OEM: Yes
• Interchange Part Number: 590-04481
• Model: blazer-s10-jimmy-s15
• Year: 1997
• Brand: GM
• MPN: 16229684 8162296840