Is Your Work Van Unreliable? Get Back on the Job Fast.
If your 2016 Savana 2500 is giving you headaches with a persistent check engine light, rough idling, stalling, or terrible fuel economy, a failing Engine Control Module (ECM) is often the culprit. As the brain of your engine, when the ECM starts to fail, it can cause a cascade of frustrating and hard-to-diagnose issues. You can’t afford downtime, and a trip to the dealership for a new module and programming can cost a fortune and take days.
This is your direct-fit, reliable solution. We provide a high-quality replacement ECM that comes fully programmed to your van’s specific Vehicle Identification Number (VIN). This isn’t a generic, one-size-fits-all part; it’s loaded with the latest GM software updates to ensure optimal performance and communication with all your vehicle’s other systems. You get a component that’s ready to install right out of the box, eliminating the need for expensive dealer-only tools or appointments.
From the Shop Floor: A Real-World Scenario
“A customer’s 2016 Savana 2500 work van came into my shop last month with a problem that was costing him business. It would run fine when cold, but after about 30 minutes of driving, it would intermittently stall at stoplights and then struggle to restart. He had no consistent trouble codes, just a random U0100 ‘Lost Communication’ code every few days. After verifying power and ground at the module, we identified a heat-soaked failure inside the original ECM. We installed one of our VIN-programmed modules, and the van was back in service the same afternoon, running perfectly. This is a classic failure mode I’ve seen hundreds of times on these GM workhorses.”
Why Choose Our Pre-Programmed 2016 Savana 2500 ECM?
Forget the hassle and high cost of the dealership. Our process is designed for the professional and the savvy DIYer to get the job done right.
- โ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the newest GM-approved software for perfect compatibility.
- โ Solves Common Problems: Directly addresses issues like check engine lights, no-start conditions, erratic shifting, poor engine performance, and communication fault codes.
- โ True Plug-and-Play: In most cases, no further programming is needed. Simply install the module and perform the vehicle security relearn procedure (if required), which takes only minutes.
- โ Broad Compatibility: This module, part number 22819494, is a direct replacement for a wide range of original part numbers, including 12668866, 12668994, 12643636, and more.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new ECM is a straightforward process. While specific locations vary slightly, here is a general guide for your Savana 2500:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait 10 minutes for the systems to fully discharge.
- Locate the ECM: On the 2016 Savana, the ECM is typically located in the engine compartment, on the driver’s side, near the firewall or inner fender.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new ECM into place and securely reconnect the electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: You may need to perform a simple key-cycle security relearn. Turn the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds. Repeat this two more times. On the fourth cycle, the vehicle should start and run normally.
Expert Pro Tip: Connector Inspection
Before installing your new ECM, take a moment to inspect the vehicle’s harness connectors. Over the years, moisture can lead to corrosion (often a green or white crust) on the pins. This creates poor connections that can mimic ECM failure. I always use a small wire brush and a quality electronics cleaner to scrub the pins on the vehicle’s harness side. A clean connection is critical for the new module to function correctly.
Guaranteed Fitment
This Engine Control Module is a confirmed fit for a wide array of GM vehicles, not just the Savana. It is a direct replacement for part numbers 12668866, 12668994, 12643636, 12663405, 12670335, 22819494, and 12692200. It fits many Chevrolet, GMC, Buick, and Cadillac models including the Express, Silverado, Sierra, Cruze, Sonic, Trax, and Encore. Please verify your part number or use the fitment chart to ensure compatibility.