Restore Peak Performance to Your 1997 GM Truck or SUV
If you’re battling frustrating issues like a persistent Check Engine Light, erratic engine behavior, stalling, or a no-start condition in your 1997 GMC Yukon, the Powertrain Control Module (PCM) is often the culprit. As a technician with over two decades of experience, I’ve seen how a failing PCM can create a cascade of problems that seem impossible to pin down. This module is the electronic brain of your vehicle, and when it falters, everything from fuel delivery to transmission shifting can be affected. This replacement 1997 Yukon PCM is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN with the latest GM software updates.
The Hassle-Free Solution: No Dealer Visit Required
One of the biggest headaches with PCM replacement has always been the mandatory programming. In the past, you’d have to install the part and then have your vehicle towed to a dealership for an expensive flashing procedure. We eliminate that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our experts will handle all the programming. This ensures that when the part arrives, it’s a true plug-and-play component, ready to restore your truck’s factory performance and reliability.
From the Diagnostic Bay: The Intermittent No-Start Mystery
I once had a 1997 Chevy Tahoe in my shop with a maddening intermittent no-start. The owner had already replaced the battery, starter, and fuel pump. It would start fine for a week, then refuse to crank for a day. After hours of tracing wires, I focused on the PCM. On these older GM trucks, the internal drivers that control the fuel pump relay or ignition system can develop microscopic cracks in their solder joints from years of heat cycles. The PCM tested fine when cold, but after a long drive, the heat would cause the crack to expand, breaking the connection. Replacing the PCM with a properly prepared unit like this one solved the problem for good. It’s a classic failure I’ve diagnosed hundreds of times.
Is Your GM Truck Showing These Signs?
- ✔ Persistent Check Engine Light (CEL)
- ✔ Diagnostic Trouble Codes (DTCs) such as P0601 (Internal Control Module Memory Check Sum Error) or P0605 (Internal Control Module ROM Error)
- ✔ Engine stalling or shutting off while driving
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Poor fuel economy and reduced engine power
- ✔ Failure to pass state emissions testing
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- ✔ Locate the PCM: On most 1997 GM trucks and vans, the PCM is located in the engine compartment, typically on the driver’s side near the battery or on the fender well.
- ✔ Disconnect the Harnesses: Carefully unlatch and remove all electrical connectors from the old PCM. These connectors have locking tabs that need to be released. Avoid pulling on the wires themselves.
- ✔ Remove the Old Module: Unbolt the old PCM from its mounting bracket. Keep the hardware, as you may need to reuse it.
- ✔ Install the New PCM: Mount your new, pre-programmed PCM onto the bracket and secure it. Reconnect all electrical harnesses, ensuring they click firmly into place.
- ✔ Reconnect the Battery: Reattach the negative battery terminal.
- ✔ Perform Security Relearn (If Necessary): Some vehicles may require a security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. This allows the new PCM to synchronize with your vehicle’s anti-theft system.
Will This Fit My Vehicle?
This module, part number 16229684 (also compatible with 8162296840), is a direct-fit replacement for a wide range of 1997 General Motors vehicles. Please verify your part number and model from the list below to ensure compatibility.
Astro Van, Blazer S10, Bravada, Chevrolet/GMC Pickups (1500, 2500, 3500), Express/Savana Vans (1500, 2500, 3500), Isuzu Hombre (4.3L), Jimmy S15, S10/S15/Sonoma (4.3L), Safari Van, Suburban (1500, 2500), Tahoe, and Yukon. (For gasoline engines as specified in the original fitment data).
Your Trusted Source for a Reliable Fix
Don’t let a faulty computer keep your trusty GM vehicle off the road. This isn’t just a part; it’s a complete, ready-to-install solution that brings modern reliability to a classic workhorse. By providing a module that is correctly programmed for your specific 1997 Yukon PCM requirements, we save you time, money, and the frustration of dealing with complex electronic repairs. Order today and experience the difference a quality, correctly prepared module can make.
Do I need to do any programming myself?
Do I need to do any programming myself?
No. This PCM comes fully programmed to your vehicle’s VIN. We handle all the flashing before it ships, so it’s ready for installation right out of the box.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is your car’s unique 17-digit serial number. It contains critical information about your vehicle’s engine, transmission, and factory options. We use it to load the exact GM-specified software for your truck, ensuring perfect compatibility.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM also controls transmission functions like shift points and line pressure. If your shifting issues are caused by a faulty computer, this module will resolve them. However, it will not fix mechanical issues within the transmission itself.
Is this part number 16229684 the same as 8162296840?
Yes, this module is a direct replacement for both part numbers 16229684 and 8162296840. They are functionally identical and interchangeable when programmed correctly for your vehicle.
What is the security relearn procedure?
It’s a simple process to sync the new PCM with your vehicle’s anti-theft system (Passlock/VATS). It typically involves cycling the ignition key and waiting, as outlined in our installation guide. No special tools are needed.