Is Your 1997 GM Truck or Van Running Rough?
If your 1997 Chevrolet Suburban 1500, Tahoe, C/K Pickup, or another compatible GM vehicle is experiencing frustrating issues like stalling, poor fuel economy, a persistent check engine light, or a no-start condition, the root cause is often a failing Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for managing everything from fuel injection and spark timing to transmission shifting. When it begins to fail, it can create a cascade of problems that are often misdiagnosed, leading to wasted time and money on unnecessary sensor replacements.
This replacement PCM, part number 16229684, is the definitive solution to restore your vehicle’s original performance and reliability. We take the guesswork out of the repair by pre-programming the module specifically for your vehicle using your VIN. This ensures that it arrives ready for a straightforward installation, loaded with the latest GM software updates for optimal function. Don’t let a faulty computer keep your trusty truck off the road. Get the correct, programmed part and get the job done right the first time.
From the Diagnostic Bay
We had a customer with a ’97 Chevy C1500 that was driving him crazy. It would randomly stall at stoplights and had a check engine light for an O2 sensor that wouldn’t go away, even after he replaced the sensor twice. He spent weeks chasing what he thought was a wiring or fuel delivery problem. When he finally brought it to the shop, we hooked up our professional scanner and noticed the live data stream from the PCM was erratic. The fuel trim and timing values were jumping all over the place. We swapped in a known-good, programmed PCM, and the truck immediately idled smoothly and all sensor readings stabilized. It wasn’t the sensor; it was the computer’s ability to interpret the sensor’s signal that had failed. This is a classic case where the brain, not the limb, is the problem.
Common Symptoms of a Failing 1997 GM PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Vehicle refuses to start or is very difficult to start.
- ✔ Rough idling, stalling, or hesitation during acceleration.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Engine misfires even after replacing spark plugs and wires.
- ✔ Failure to pass an emissions test.
Why Choose Our Programmed 1997 Suburban 1500 PCM?
Getting your truck back to factory-spec condition is our priority. Unlike sourcing a part from a salvage yard which would require expensive dealer programming, our module is a complete, ready-to-install solution. We handle the complex programming process for you. Simply provide your vehicle’s 17-digit VIN during checkout, and our technicians will flash the unit with your vehicle’s exact calibration and the newest available software from General Motors. This process ensures all components managed by the 1997 Suburban 1500 PCM function precisely as the manufacturer intended. This is a direct-fit replacement for OEM part numbers 16229684 and 8162296840.
Guaranteed Compatibility
This Electronic Control Module is a direct fit for a wide range of 1997 GM trucks and vans. Please verify your vehicle is on the list below:
- Astro / Safari (GMC): 1997
- Blazer S10 / Jimmy S15: 1997 (4.3L V6)
- Bravada: 1997 (4.3L V6)
- Chevrolet / GMC C/K Pickups (1500, 2500, 3500): 1997 (Gasoline)
- Express / Savana Vans (1500, 2500, 3500): 1997 (Gasoline)
- Isuzu Hombre: 1997 (4.3L V6)
- S10 / S15 / Sonoma: 1997 (4.3L V6)
- Suburban (1500, 2500): 1997 (Gasoline)
- Tahoe / Yukon: 1997 (Gasoline)
Frequently Asked Questions
Do I need to get this module programmed?
No. This module comes fully programmed to your vehicle’s specific VIN. After you place your order, you will need to provide us with your 17-digit VIN so we can flash the module before shipping. It will be ready to install right out of the box.
Where is the PCM located on my 1997 truck?
On most 1997 GM trucks and vans like the Suburban, Tahoe, and C/K pickups, the PCM is located in the engine compartment on the driver’s side (LH), often near the battery or firewall.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your specific vehicle. It contains information about the manufacturer, model, and, most importantly, the specific options and calibrations your vehicle was built with. We use the VIN to load the exact correct software onto the PCM for your truck.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this part will resolve the issue. However, it’s crucial to properly diagnose the vehicle first, as the light can be triggered by other failing components like sensors or wiring. This module will fix issues stemming from the computer itself.
Is a security relearn procedure required after installation?
For many 1997 GM vehicles with Passlock or other anti-theft systems, a simple security relearn procedure may be necessary after installation. This can typically be done without special tools and involves a sequence of turning the key in the ignition. Instructions are widely available online or in service manuals.