Restore Your Vehicle’s Heartbeat and Your Peace of Mind
Is your trusty 1997 GM truck or van running rough, stalling unexpectedly, or refusing to start? A faltering Powertrain Control Module (PCM) can be the hidden culprit behind a host of frustrating engine problems, turning your dependable workhorse into a source of daily stress. This isn’t just an inconvenience; it’s a matter of reliability and safety. Our pre-programmed PCM, part number 16229684, is the definitive solution to bring back the smooth, predictable performance you depend on. We take the guesswork out of the repair by flashing the module with the latest GM software updates, tailored specifically to your vehicle’s unique VIN. This means no expensive trips to the dealership for programming—just a straightforward installation that gets you back on the road with confidence.
Warning Signs Your PCM Needs Attention
If you’re noticing any of the following symptoms, it’s a strong indicator that your engine’s computer may be failing. Addressing it now can prevent further component damage and restore your vehicle’s health.
- ✔ Persistent Check Engine Light (CEL) that won’t go away.
- ✔ Diagnostic Trouble Codes (DTCs) like P0601, P0604, or P0606, indicating internal module failure.
- ✔ Unexplained drops in fuel economy, costing you money at the pump.
- ✔ Rough or erratic idling and stalling at stops.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ A no-start condition where the engine cranks but won’t fire up.
- ✔ Communication errors with diagnostic scan tools.
An Expert’s Note: The Groundwork of a Good Repair
“I remember a 1997 S10 that came into my bay with classic PCM failure symptoms—stalling, random misfires, the works. The owner had already bought a new module elsewhere, but the problems persisted. Before condemning the second unit, I did a full ground check. Sure enough, the main engine-to-chassis ground strap, tucked away by the firewall, was corroded and brittle. After cleaning the contact points and replacing that $15 strap, the original PCM worked perfectly. It’s a powerful reminder: always confirm your battery is healthy and your grounds are clean and tight before replacing any electronic module. It can save you a world of headache and hundreds of dollars.”
Guided Installation to Restore Performance
Replacing your PCM is a manageable job for a DIYer with basic tools. Follow these steps for a successful installation and feel the satisfaction of fixing it yourself.
- Safety First: Disconnect the Power. Always begin by disconnecting the negative terminal of your vehicle’s battery to prevent any electrical shorts.
- Locate the Old Module. On most of these 1997 GM models, the PCM is located in the engine bay, typically on the driver’s side fender wall, near the battery. It’s a silver metal box with multiple large wiring harness connectors.
- Carefully Swap the Connectors. Release the locking tabs on each wiring harness and gently pull them straight out from the old module. Inspect the pins for any corrosion or damage. Then, plug the harnesses securely into your new, pre-programmed 1997 Bravada PCM.
- Mount the New PCM. Secure the new module in the mounting bracket, ensuring it’s snug and won’t vibrate excessively.
- Reconnect and Start. Reconnect the negative battery terminal. Your vehicle may require a simple security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your owner’s manual for specific instructions. Start the engine and enjoy a smoother, more responsive drive.
Tailored Fit for Your Ride
This module is a direct-fit replacement for part numbers 16229684 and 8162296840 and is confirmed to fit the following 1997 models. We program it using your VIN to ensure it works perfectly with your vehicle’s specific options.
- 1997 Chevrolet/GMC 1500, 2500, 3500 Pickup (Gasoline)
- 1997 Chevrolet Express / GMC Savana 1500, 2500, 3500 Van (Gasoline)
- 1997 Chevrolet S10 / GMC Sonoma (4.3L V6)
- 1997 Chevrolet Blazer / GMC Jimmy (4.3L V6)
- 1997 Chevrolet Suburban 1500, 2500 (Gasoline)
- 1997 Chevrolet Tahoe / GMC Yukon (Gasoline)
- 1997 Chevrolet Astro / GMC Safari
- 1997 Oldsmobile Bravada (4.3L V6)
- 1997 Isuzu Hombre (4.3L V6)
Frequently Asked Questions
What does ‘pre-programmed to your VIN’ actually mean?
It means we load the module with the specific software and calibrations from GM that match your vehicle’s engine, transmission, and factory options. This ensures it works correctly right out of the box, just like a part from the dealership, but without the high cost and hassle of having them program it.
Do I need to perform any other procedures after installation?
In many cases, you may need to perform a security relearn procedure, sometimes called a CASE relearn or anti-theft relearn. This process syncs the new PCM with your vehicle’s anti-theft system. It’s a simple procedure that usually involves a few cycles of the ignition key and is detailed in your vehicle’s service manual.
How do I provide my VIN number?
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 the programming is essential for the part to function.
Is this the correct 1997 Bravada PCM for my vehicle?
This unit is compatible with a wide range of 1997 GM trucks and SUVs. The best way to confirm is to match the part number 16229684 on your original module. If you’re unsure, please send us your VIN, and we’ll be happy to verify compatibility for you.
What if my original part number is slightly different?
GM often uses several interchangeable part numbers for the same module. This unit is a direct replacement for 16229684 and 8162296840. If your number is different, please contact us with your VIN and original part number to ensure we provide the correct component for your vehicle.