Restore Peak Performance to Your GM Vehicle
Is your vehicle suffering from a persistent Check Engine Light, erratic behavior, or a no-start condition? A failing Engine Control Module (ECM) is often the culprit, acting like a confused brain for your engine. This isn’t just an inconvenience; it can lead to poor fuel economy, failed emissions tests, and potentially leave you stranded. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cause a cascade of frustrating, hard-to-diagnose issues. This replacement Engine Control Module, part number 12590032, is the reliable, professional-grade solution to restore your vehicle’s performance and peace of mind.
The biggest hurdle in replacing an ECM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. Before this module ships, we will program it with the latest GM-certified software updates, specifically matched to your vehicle using the VIN you provide. This ensures that when it arrives, it’s ready for a straightforward installation, saving you hundreds of dollars and significant downtime. It’s the closest you can get to a plug-and-play fix for one of your car’s most critical components.
A Technician’s Notebook: The Intermittent Stall on the Trailblazer
I once had a 2007 Chevy Trailblazer in the bay that was driving the owner crazy. It would run perfectly for days, then suddenly stall at a stoplight with no warning and no immediate Check Engine Light. The owner had already replaced the fuel pump and a few sensors with no luck. After connecting my scan tool, I noticed intermittent communication loss with the ECM (a U0100 code would pop up in history). On these GM platforms, heat and vibration are the enemy of the ECM. We swapped in a pre-programmed module, and the problem vanished instantly. It’s a classic case where chasing symptoms is expensive, but correctly diagnosing the core issue—the ECM—provides the definitive fix.
Is Your Vehicle Showing These Symptoms?
A failing ECM can manifest in many ways. If you’re experiencing any of the following, it’s a strong indicator that your engine’s computer needs attention:
- ✔ Check Engine Light is on, often with codes like P0601, P0606, or U0100.
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained drops in fuel efficiency.
- ✔ The engine stalls, stumbles, or misfires intermittently.
- ✔ Automatic transmission shifts harshly or at the wrong times.
- ✔ Loss of power and poor acceleration.
- ✔ Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
Installing your new 2006 XLR Engine Control Module is a job most DIYers can handle with basic tools. Following these steps will ensure a smooth process.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental reconnection.
- Locate the Old ECM: The location varies by model (e.g., on the firewall, behind the fan shroud, or in the air cleaner box). Refer to your vehicle’s service manual or the fitment list below for common locations.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in the same location and securely fasten the bolts. Reconnect the wiring harnesses, ensuring they click firmly into place.
- Reconnect the Battery: Reattach the negative battery terminal.
- Perform Security Relearn: In many GM vehicles, you will need to perform a simple security relearn procedure so the vehicle recognizes the new ECM. This typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your owner’s manual for the specific procedure for your model.
Verified Vehicle Compatibility
This ECM is a direct replacement for service number 12590032 and is also interchangeable with part numbers 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. It is guaranteed to fit a wide range of GM vehicles. Please verify your model and options in the list below to ensure perfect compatibility.
COLORADO 08 Electronic Control Module; (RH firewall)
ENVOY 07-08 Electronic Control Module; 5.3L (LH engine)
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 19210737
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
XLR 09 Electronic Control Module; (RH front engine compartment), ID 12607096
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/hybrid
DTS 06 Electronic Control Module
DEVILLE 05 Electronic Control Module; (LH engine compartment), ID 12590032
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12605843
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
LACROSSE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
STS 06 Electronic Control Module; (LH frame rail), 4.4L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12636660
UPLANDER 09 Electronic Control Module; (LH engine compartment), (3.9L)
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 19210737
SAAB 9-7X 07 Electronic Control Module; (LH engine), 8 cylinder
TRAILBLAZER 07 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 19210737
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 12607096
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
RAINIER 07 Electronic Control Module; (LH engine), 5.3L
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 12607096
CTS 06 Electronic Control Module; (RH engine compartment), V-Series, ID 12603530
STS 08 Electronic Control Module; (LH frame rail), 4.6L
G6 06 Electronic Control Module; (LH front engine compartment), ID 12603530
G6 08 Electronic Control Module; (LH front engine compartment), 3.6L
ION 06 Electronic Control Module; 2.4L (opt LE5)
MALIBU 06 Electronic Control Module; 3.9L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/hybrid
RELAY 06 Electronic Control Module; (LH engine compartment), 3.9L
VUE 08-09 Electronic Control Module; 2.4L, VIN Z (8th digit, opt LAT)
OUTLOOK 08 Electronic Control Module; (behind fan shroud)
SOLSTICE 06 Electronic Control Module; (LH front frame rail)
VUE 08 Electronic Control Module; 3.6L
VUE 09 Electronic Control Module; 3.6L, VIN 7 (8th digit, opt LY7)
ACADIA 07-08 Electronic Control Module; (behind fan shroud), ID 12607096 (ECM)
AURA 08-09 Electronic Control Module; (RH firewall), 3.6L
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 19210737
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12603530
GRAND PRIX 08 Electronic Control Module; (lower air cleaner box), 5.3L
HHR 06 Electronic Control Module; (LH rear engine compartment), 2.4L
STS 08 Electronic Control Module; (LH frame rail), 4.4L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12590032
ISUZU I-290 08 Electronic Control Module; (RH firewall)
LUCERNE 06 Electronic Control Module; (lower part of air cleaner box), 4.6L
MALIBU 09-10 Electronic Control Module; 2.4L, w/hybrid
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 19210737
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
MONTANA 06 Electronic Control Module; (LH engine compartment), (SV6), 3.9L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 19210737
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12636660
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12602044
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12607096
TRAILBLAZER 09 Electronic Control Module; (LH engine), 4.2L
CANYON 08 Electronic Control Module; (RH firewall)
COBALT 06 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
ISUZU I-370 08 Electronic Control Module; (RH firewall)
MALIBU 09 Electronic Control Module; 3.6L
SRX 08 Electronic Control Module; (LH engine compartment), (4.6L)
SAAB 9-7X 08 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
IMPALA 08-09 Electronic Control Module; (lower part of air cleaner box), 5.3L
XLR 06 Electronic Control Module; (RH front engine compartment), 4.4L
XLR 08 Electronic Control Module; (RH front engine compartment)
ENVOY 09 Electronic Control Module; (LH engine), 4.2L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12618163
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 19210737
MONTANA 08-09 Electronic Control Module; (LH engine compartment)
PURSUIT 06 Electronic Control Module; (LH front engine compartment), 2.4L
VUE 10 Electronic Control Module; 3.6L
ACADIA 08 Electronic Control Module; (behind fan shroud), ID 19210737 (PCM)
DTS 08 Electronic Control Module
TERRAZA 06 Electronic Control Module; (LH engine compartment), 3.9L
TRAILBLAZER 07 Electronic Control Module; (LH engine), 6.0L
SAAB 9-7X 08 Electronic Control Module; (LH engine), 6.0L
HUMMER H3 08 Electronic Control Module; (RH firewall)
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 3.6L
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 12607096
UPLANDER 06 Electronic Control Module; (LH engine compartment), 3.9L
Frequently Asked Questions
Frequently Asked Questions
How does the VIN programming work?
After you purchase, you’ll provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We use this number to access the latest official GM software for your exact vehicle configuration and flash it onto the module before shipping.
Do I need any special tools for installation?
No. Basic hand tools like a socket set are all that’s required for the physical installation. Our programming service eliminates the need for expensive dealer-level scan tools.
What is a security relearn and is it difficult?
A security relearn syncs the new ECM with your vehicle’s anti-theft system. It’s a simple, tool-free procedure that usually involves leaving the key in the ‘ON’ position for 10-15 minutes. We can provide instructions, and it’s also detailed in most owner’s manuals.
What if I order the wrong part?
We strongly encourage you to check the fitment list and your original part number. Providing your VIN for programming is the best way to guarantee compatibility. If you’re unsure, please contact us before ordering so our experts can help you confirm the correct part.
Is this a reliable, long-term fix?
Absolutely. We supply high-quality, tested modules loaded with the most stable factory software. This is the same caliber of repair you would receive from a professional repair facility, designed to provide lasting performance and reliability.