Restore Peak Performance to Your C6 Corvette
Is your 2009 Corvette suffering from frustrating and hard-to-diagnose issues? A faulty Engine Control Module (ECM), the vehicle’s central computer, is often the hidden culprit behind poor performance, a persistent check engine light, or even a no-start condition. This isn’t just a replacement part; it’s a direct solution. We provide a genuine GM engine computer, part number 12625455, that comes fully programmed with the latest GM software updates specifically for your vehicle’s VIN. This critical step ensures seamless integration and restores the precise performance and efficiency you expect from your Corvette.
Forget the expensive trip to the dealership and the hassle of coordinating programming. We handle the complex part for you. Simply provide your VIN after purchase, and our team of experienced technicians will flash the module. When it arrives at your door, it’s ready for installation. This is the most reliable and straightforward way to get your car back on the road and running perfectly.
From the Diagnostic Bay
I remember a 2009 Corvette that came into the shop with an intermittent stalling problem that was driving the owner crazy. It would die at stoplights with no warning and no specific trouble codes, just a generic U0100 (Lost Communication with ECM). After hours of checking wiring harnesses and grounds, we swapped in a known-good test ECM, and the problem vanished. The original module had an internal fault that only appeared when it heated up. We ordered a pre-programmed unit like this one, and the customer was back on the road in under an hour after it arrived. It’s a classic case where a new, correctly programmed 2009 Corvette Engine Computer is the only real fix.
Is Your Corvette’s ECM Failing?
A failing engine computer can cause a wide range of symptoms. If you’re experiencing any of the following, a faulty ECM could be the cause:
- ✔ Check Engine Light is on with codes like P0601, P0606, or communication errors.
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling.
- ✔ Noticeable decrease in fuel economy.
- ✔ Hesitation or stumbling during acceleration.
- ✔ Automatic transmission shifting erratically.
- ✔ Other modules on the vehicle reporting no communication with the ECM.
A Straightforward Guide to Installation
Installing your new 2009 Corvette Engine Computer is a manageable job for a DIY enthusiast. The key is taking your time and following the proper procedure. Remember, this module is located in the right-hand (passenger side) engine compartment on the Corvette.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the ECM: On the 2009 Corvette, find the ECM mounted in the RH engine compartment. You may need to remove a cover for access.
- Disconnect Connectors: Carefully release the locking tabs on the wiring harness connectors and gently pull them straight out from the module. Never force them. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure the bolts. Reconnect the wiring harnesses, ensuring they click securely into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: This is a critical step. You will need to perform the vehicle’s security relearn procedure (often called the Pass-Key/Passlock relearn). This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating this cycle three times. This allows the new ECM to sync with your vehicle’s anti-theft system. Your car will not start until this is completed.
Verified Vehicle Compatibility
This ECM, identified by part numbers 12625455 and 12629009, is a direct-fit replacement for a wide range of General Motors vehicles. While this listing is for a 2009 Corvette Engine Computer, please verify your vehicle in the list below to ensure perfect compatibility.
AVALANCHE 1500 09-10 (LH front engine compartment)
ESCALADE & ESV/EXT 09-10 (LH front engine compartment)
G6 09 (LH front engine compartment), 3.5L or 3.9L
G8 09 (ID 12625455)
HUMMER H2 09 (LH front engine compartment)
IMPALA 09 (lower air cleaner box), 3.5L or 3.9L
MALIBU 09 3.5L
SAVANA/EXPRESS VANS 1500/2500/3500 09 (LH rear engine compartment), 4.8L, 5.3L, or 6.0L
SIERRA/SILVERADO PICKUPS 1500/2500/3500 09-10 (LH front engine compartment)
SUBURBAN 1500/2500 09-10 (LH front engine compartment)
TAHOE 09-10 (LH front engine compartment), w/o hybrid
VUE 10 3.5L
YUKON & YUKON XL 1500/2500 09-10 (LH front engine compartment), w/o hybrid
Note: Some 2010 models require matching the ID number (12625455 or 12629009). Please check your original part.
Why do you need my VIN?
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the Engine Control Module with the exact software and calibrations for your Corvette’s specific options, engine, and transmission. This ensures perfect compatibility and performance, just like a new module from the factory.
Is any other programming required after installation?
No dealership programming is needed. The only procedure you must perform is the security relearn, which syncs the new ECM to your car’s anti-theft system. This is a simple procedure that you can do yourself and does not require special tools.
Will this fix my ‘no-start’ problem?
If the ‘no-start’ issue is caused by a faulty ECM, then yes, this part is the solution. A dead ECM is a common reason for a vehicle to crank but not start. However, a no-start can also be caused by other issues like a bad fuel pump or crank sensor, so proper diagnosis is always recommended.
What is the difference between an ECM, ECU, and PCM?
The terms are often used interchangeably. ECM (Engine Control Module) and ECU (Engine Control Unit) typically refer to the same part. PCM (Powertrain Control Module) is a more advanced module that controls both the engine and the transmission. For your 2009 Corvette, this part serves as the primary engine computer.