Is Your Work Van Unreliable? Get Back on the Road Fast.
For a business owner, a 2016 GMC Savana 2500 that won’t start, runs rough, or keeps throwing random check engine lights isn’t just an annoyance—it’s a direct hit to your bottom line. Every day it’s down is a day you’re not serving customers. Often, the culprit is a failing Engine Control Module (ECM), the computer that manages everything from fuel injection to transmission shifting. When it goes bad, the symptoms can be maddening and hard to diagnose.
“A customer’s 2016 Savana 2500 came in last week with a no-start condition and a flurry of communication error codes (U-codes). The local shop had already replaced the battery and checked the alternator. The real issue was a shorted driver inside the original ECM. We installed one of these VIN-programmed modules, and the van fired right up. He was back on his delivery route in under an hour, saving him a tow to the dealer and days of lost work.”
Symptoms of a Failing GM ECM:
- ✔ Check Engine Light with codes like P0601, P0606, or other communication faults.
- ✔ Engine cranks but refuses to start.
- ✔ Stalling, hesitation, or rough idling for no apparent reason.
- ✔ Poor fuel economy and loss of power.
- ✔ Seemingly unrelated error messages for other systems.
- ✔ Transmission shifting erratically or getting stuck in gear.
The Direct-Fit, Programmed Solution for Your Van
Don’t waste time and money at the dealership. This Engine Control Module is the most efficient solution to get your Savana 2500 running properly again. We take the hassle out of the repair by pre-programming the unit specifically for your vehicle using your VIN. This ensures it has the latest GM factory software and communicates perfectly with your van’s other modules right out of the box. It’s a true plug-and-play fix.
Why Our Programmed 2016 Savana 2500 Engine Control Module is Better:
- ✔ VIN-Programmed for You: We flash the module with the newest GM software updates for your specific vehicle. Just provide your VIN at checkout.
- ✔ No Dealer Required: This unit is ready for installation upon arrival. No need for expensive dealer tools or programming appointments.
- ✔ Guaranteed Compatibility: This module is a direct replacement for part numbers 12643636, 12668866, 12668994, 12663405, 12670335, 22819494, and 12692200.
- ✔ Wide Application: While perfect for your Savana, this ECM also fits a huge range of GM vehicles, including the Express Van, Silverado/Sierra 2500/3500, Cruze, Sonic, and more, a testament to its proven reliability.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new 2016 Savana 2500 Engine Control Module is straightforward. While professional installation is always recommended, here is a general guide:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the ECM: On the 2016 Savana/Express vans, the ECM is typically found in the left-hand (driver’s side) rear of the engine compartment.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old module. Inspect the pins and terminals for any corrosion or damage. Clean them with a dedicated electronics cleaner if necessary.
- Remove Old Module: Unbolt the old ECM from its mounting bracket.
- Install New Module: Mount the new, pre-programmed ECM in place and securely fasten it.
- Reconnect Everything: Firmly plug the wiring harnesses into the new module until they click. Reconnect the negative battery terminal.
- Final Steps: In some cases, a security or crank relearn procedure may be needed, which can be done with many professional scan tools. Start the vehicle and check for proper operation.