Restore Your Vehicle’s Brain and Get Back on the Road with Confidence
Is your truck or van plagued by frustrating, intermittent issues? A faulty Powertrain Control Module can feel like a ghost in the machine, causing everything from poor fuel economy and rough shifting to a dreaded no-start condition. Stop chasing symptoms and address the root cause. This fully programmed PCM, compatible with part number 16229684, is the definitive solution to restore your vehicle’s performance, reliability, and your peace of mind. We take the guesswork out of the repair by flashing the module with the latest GM software updates, specifically tailored to your vehicle’s VIN. It’s not just a part; it’s a new lease on life for your trusted vehicle.
Warning Signs Your PCM is Failing
A failing engine computer can manifest in numerous ways. If you’re experiencing any of the following, it might be time for a replacement:
- ✔ Unexplained Check Engine Light with codes like P0601, P0602, or P0605.
- ✔ The engine cranks but refuses to start.
- ✔ Harsh, erratic, or delayed automatic transmission shifting.
- ✔ Noticeable drop in fuel efficiency.
- ✔ Stalling, sputtering, or random misfires.
- ✔ No communication with your OBD-II scan tool.
An Old Pro’s Diagnostic Tip
Before you condemn the computer, take 10 minutes to check your fundamentals. I’ve seen countless modules replaced when the real culprit was a corroded ground wire on the frame or a loose battery terminal. Ensure your battery is fully charged and all main power and ground connections are clean and tight. A weak electrical foundation can make even a perfectly good PCM act erratically. This simple check can save you time, money, and a whole lot of frustration.
Guided Installation for a Confident Fix
Replacing your 1997 Express 1500 PCM is a straightforward job you can tackle in your own driveway. Since we handle the programming, the most complex part is already done. Follow these simple steps:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental power surges.
- Locate the Module: On most of these GM trucks and vans, you’ll find the PCM in the engine compartment, typically on the driver’s side near the battery or firewall.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that may need to be gently pried up. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New PCM: Mount your new, pre-programmed module in place. Reconnect the wiring harnesses, ensuring they click securely into position. There’s no way to mix them up, as they are color-coded and keyed differently.
- Power Up: Reconnect the negative battery terminal. Your vehicle is now ready for the final step. Depending on your specific model, a security relearn procedure (often called a ‘key cycle’) may be required. This typically involves turning the key to the ‘On’ position for 10-15 minutes, then off, and repeating two more times.
Tailored Fit for Your GM Vehicle
This module is a direct-fit replacement for a wide range of 1997 GM models. Please verify your part number (16229684) to ensure perfect compatibility. This part is confirmed to fit:
- Chevrolet: 1500/2500/3500 Pickup, Astro, Blazer S10, Express 1500/2500/3500 Van, Suburban 1500/2500, Tahoe
- GMC: 1500/2500/3500 Pickup, Jimmy S15, Safari, Savana 1500/2500/3500 Van, Sonoma, Yukon
- Oldsmobile: Bravada
- Isuzu: Hombre (with 4.3L V6)
By providing your VIN upon purchase, you guarantee that the 1997 Express 1500 PCM you receive is perfectly matched to your vehicle’s specific configuration, ensuring seamless integration and optimal performance from the moment you turn the key.
Frequently Asked Questions
Is this module ready to install right out of the box?
Yes! The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This eliminates the need for expensive dealer programming. In some cases, a simple security or CASE relearn procedure may be required after installation, which you can do yourself.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as it’s essential for the programming process.
Where is the PCM located on my 1997 Express Van?
On the 1997 Express and Savana vans, the PCM is located in the engine compartment on the driver’s side, mounted near the battery tray and firewall.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the PCM (common codes include P0601-P0606), then this replacement module will solve the problem. However, if the light is on for other reasons, like a faulty sensor, those issues will need to be addressed separately.
What is the difference between a PCM and an ECM?
The terms are often used interchangeably. PCM (Powertrain Control Module) is the more modern and accurate term, as the module controls both the engine and the transmission functions. ECM (Engine Control Module) is an older term that sometimes refers to a computer that only controls the engine.