Restore Your GM Vehicle’s Performance and Reliability
If you’re dealing with frustrating engine problems like stalling, poor fuel economy, a persistent check engine light, or a no-start condition, a failing Engine Control Module (ECM) is often the culprit. As a technician with over 20 years of experience, I’ve seen firsthand how a faulty ECM can cripple a perfectly good engine. This isn’t just an inconvenience; it affects your vehicle’s safety and performance. This replacement Engine Control Module is the definitive solution, arriving at your door pre-programmed with the latest GM software for your specific Vehicle Identification Number (VIN). This eliminates the need for an expensive trip to the dealership for programming—it’s a true plug-and-play fix.
A Technician’s Notebook: The Ghost in the Machine
A customer brought in their 2016 Sierra with the 6.2L engine, a close cousin to the one in the Camaro. The complaint was intermittent stalling at stoplights and a random “Service StabiliTrak” message. There were no consistent trouble codes, just a history of U0100 (Lost Communication with ECM) and a P0606 (ECM/PCM Processor Fault). We checked grounds, wiring harnesses, and power feeds—all were solid. After hours of diagnostics, we swapped in a known-good, programmed ECM. The ghost was gone. The original module had an internal processor fault that only occurred under specific thermal conditions. This is a classic failure mode, and why a high-quality, correctly programmed replacement like this 2016 Camaro Engine Control Module is so critical for a lasting repair.
Is Your Vehicle Showing These Symptoms?
- ✔ Check Engine Light is on with no clear cause.
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained drops in fuel efficiency.
- ✔ The engine hesitates, stumbles, or stalls unexpectedly.
- ✔ Transmission shifting feels harsh or erratic.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs) like U0100, P0601, P0606.
- ✔ Failure to pass an emissions test.
A Straightforward Guide to Installation
Replacing your ECM is a manageable job for a DIYer with basic tools. This pre-programmed module makes the process much simpler. Here’s a general guide:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes for the system capacitors to discharge.
- Locate the ECM: On most listed vehicles, the ECM is found in the engine compartment, often on the driver’s or passenger’s side, mounted to the firewall or inner fender. For the Corvette, it’s typically under the dash on the passenger side.
- Disconnect Connectors: Carefully release the locking tabs on the electrical harness connectors and pull them straight out from the module. Never force them. Inspect the pins for any corrosion or damage.
- Remove the Module: Unbolt the old ECM from its mounting bracket. Note the orientation of the module.
- Install the New ECM: Mount the new 2016 Camaro Engine Control Module in place and secure the bolts.
- Reconnect Everything: Firmly press the electrical connectors into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Relearn (If Necessary): While this module is pre-programmed, some vehicles require a security or crank-position sensor relearn procedure. This can often be done without special tools (e.g., by cycling the key) or with a capable scan tool. Consult a service manual for your specific model for any required steps.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM cars, trucks, and SUVs. Please verify your part number or match your vehicle from the list below. This part is compatible with service numbers: 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, and 12669318.
CORVETTE 14-16
ATS 14 (ID 12656993)
ATS 15 (3.6L)
ATS 16 (3.6L, VIN Y)
CTS 14-15 (Sdn, 3.6L)
CTS 16 (3.6L, VIN 8 or 6.2L)
XTS 14-16 (3.6L, VIN 8)
COLORADO 15-16 (3.6L)
CANYON 15-16 (3.6L)
SILVERADO 1500 PICKUP 14-15
SILVERADO 1500 PICKUP 16 (ID 12662034, 12672537, 12673195)
SIERRA 1500 PICKUP 14-15
SIERRA 1500 PICKUP 16 (ID 12662034, 12672537, 12673195)
SIERRA DENALI 1500 14-16
TAHOE 15-16
SUBURBAN 1500 15-16
YUKON 15-16
YUKON XL 1500 15-16
ESCALADE 15-16
ESCALADE ESV 15-16
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to your vehicle’s specific VIN before shipping it to you. This ensures it has the correct software and calibrations for your engine and options, making it ready for installation right out of the box.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or send it to us in a message referencing your order number.
Is this a new or used part?
This is a quality, inspected, and tested used OEM part that has been professionally programmed with the latest factory software for your vehicle, ensuring reliable performance.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM (common codes include P0601, P0606, or communication errors), then yes, this part will resolve the issue. However, you should always diagnose the codes properly to ensure the ECM is the true source of the problem.
What if my original part number isn’t 12656993?
This module is compatible with a range of part numbers. Please check the list of compatible service numbers in the description. As long as your original part number is on that list, this module will work for your vehicle.