1997 GMC Savana 1500 PCM 16229684 Programmed to Your VIN

### 1997 GMC Savana 1500 PCM 16229684 Programmed to Your VIN   ## Is Your 1997 GM Truck or Van Running Rough or Not Starting? If you’re dealing with a 1997 GMC Savana 1500, or another GM truck from that era, you know how dependable they can be. But when the Powertrain Control Module (PCM) starts to fail, it can create some of the most frustrating and difficult-to-diagnose problems. You might be experiencing a no-start condition, intermittent stalling, a persistent check engine light, or erratic transmission shifting that makes the vehicle feel unreliable. The PCM is the central computer, the brain, that manages everything from fuel mixture and ignition timing to transmission shift points and emissions equipment. When it fails, the symptoms can often mimic other issues, leading you down a rabbit hole of replacing perfectly good parts. ### Expert Pro Tip: Diagnosing a 1997 GM ‘Black Box’ PCM In my 20+ years in the shop, I’ve seen countless 1997 GM trucks and vans with these ‘black box’ PCMs. A common scenario is a crank-no-start condition. Many technicians immediately suspect the fuel pump or the ignition control module (ICM). A key diagnostic step is to check for a ‘5-volt reference’ signal at sensors like the Throttle Position Sensor (TPS) or MAP sensor with the key on. If that 5v reference is missing or erratic, but your main power and grounds to the PCM are solid, the PCM itself is almost always the culprit. A failing PCM often stops providing this critical voltage, shutting down the whole system. This simple check can save you hours of frustration and the cost of replacing parts you don’t need. ## The Direct, Reliable Solution: A VIN-Programmed PCM This is a replacement Powertrain Control Module, part number 16229684, for a wide range of 1997 General Motors vehicles. The most significant benefit is that we program it specifically to your vehicle’s 17-digit Vehicle Identification Number (VIN) before it ships. This crucial step ensures it communicates perfectly with your truck’s specific engine, transmission, and options. It arrives loaded with the latest GM-released software, which often includes fixes for known drivability issues and operational refinements that your original module may lack. ### Common Symptoms of a Failing 1997 GM PCM: - ✔ Check Engine Light is on with various communication or sensor codes. - ✔ Vehicle will crank but refuses to start. - ✔ Harsh or erratic automatic transmission shifting. - ✔ Noticeable decrease in fuel economy. - ✔ Engine stalling, stumbling, or running rough for no apparent reason. - ✔ Failure to pass an emissions test. - ✔ No communication with a diagnostic scan tool. ## Installation and What to Expect Once you receive your module, installation is straightforward. Simply disconnect the battery, locate the original PCM (typically in the engine bay on the driver’s side), unplug the old module, and install this one. Because it’s already programmed, you avoid the need for expensive dealer-level programming tools or a trip to a repair shop for software flashing. In most cases, the vehicle will start and run correctly immediately. A security relearn procedure may be necessary, which is a simple process that can be done without any special tools. **To complete your order, please provide your vehicle’s VIN in the designated section during checkout or send it to us via email after purchase. We cannot ship your part without it.** ## Guaranteed Compatibility This module is a direct replacement for part numbers **16229684** and **8162296840**. 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: savana-1500
• Year: 1997
• Brand: GM
• MPN: 16229684 8162296840