Restore Your Vehicle’s Core Performance
If you’re dealing with frustrating issues like a persistent Check Engine Light, poor engine performance, or a vehicle that refuses to start, a failing Engine Control Module (ECM) is often the culprit. As a technician with over two decades of experience under the hood, I’ve seen firsthand how a faulty engine computer can disrupt everything. This isn’t just a part; it’s the brain of your engine, and getting a reliable replacement is critical. This ECM, part number 12602044, is your direct-fit, hassle-free solution, arriving at your door fully programmed with the latest GM software for your specific vehicle.
Is Your Vehicle Showing These Telltale Signs?
A failing ECM can manifest in numerous ways. Before you start replacing sensors and other components, check if your car is experiencing any of the following, as these are classic symptoms I’ve diagnosed in my shop countless times:
- ✔ Unexplained Check Engine Light illumination (Common codes include P0601, P0602, P0606 for internal processor failure)
- ✔ Complete no-start or intermittent starting condition
- ✔ Drastic decrease in fuel efficiency
- ✔ Engine stalling, sputtering, or misfiring unexpectedly
- ✔ Communication errors with scan tools (U-series codes)
- ✔ Harsh or erratic automatic transmission shifting
A Technician’s Notebook: The Ghost in the Machine
I remember a 2008 Chevy Cobalt that came into the bay with a laundry list of intermittent electrical gremlins. The owner had already replaced the alternator and battery, but the car would randomly stall and lose power. The scan tool showed a dozen unrelated codes that would change every time we checked. Instead of chasing ghosts, we went straight to the source. We checked the power and ground feeds to the ECM, which were solid. This pointed to an internal failure. After installing a VIN-programmed ECM just like this one, every single phantom code vanished, and the car ran perfectly. It’s a powerful reminder that the ECM is the central hub, and when it fails, it can send you on a wild goose chase.
A Straightforward Guide to Your 2006 Pursuit Engine Control Module Installation
Replacing your ECM is a manageable job for a DIY enthusiast. The key benefit of our service is that we handle the programming, so you won’t need a trip to the dealership. Just follow these general steps to get your vehicle back in top shape.
- Safety First: Always begin by disconnecting the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the ECM: On your 2006 Pontiac Pursuit, the Engine Control Module is typically found in the left front of the engine compartment. Consult a vehicle-specific repair manual if you have trouble finding it.
- Disconnect the Harnesses: Carefully release the locking tabs on the electrical connectors and pull them straight out from the module. Never force them; they are designed to be removed easily once unlocked.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the mounting hardware, as you will need it for the new module.
- Install the New ECM: Mount the new, pre-programmed module in place and secure it with the original hardware. Reconnect the electrical harnesses, ensuring they click securely into place.
- Reconnect the Battery: Reattach the negative battery terminal. Your vehicle may need to complete a relearn cycle, which typically involves letting it idle for a few minutes and then driving it for a short period.
Verified Vehicle Compatibility
This module, service number 12602044, is a direct replacement for a wide array of General Motors vehicles. It is interchangeable with part numbers 12590032, 12603530, 12605843, 12607096, 12630457, and 19210737. Please confirm your vehicle is on the list below to ensure a perfect fit.
ACADIA 08 Electronic Control Module; (behind fan shroud), ID 19210737 (PCM)
ALLURE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/hybrid
AURA 08-09 Electronic Control Module; (RH firewall), 3.6L
CANYON 08 Electronic Control Module; (RH firewall)
COBALT 06 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
COLORADO 08 Electronic Control Module; (RH firewall)
CTS 06 Electronic Control Module; (RH engine compartment), V-Series, ID 12603530
DEVILLE 05 Electronic Control Module; (LH engine compartment), ID 12590032
DTS 06 Electronic Control Module
DTS 08 Electronic Control Module
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 12607096
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 19210737
ENVOY 07-08 Electronic Control Module; 5.3L (LH engine)
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12607096
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12636660
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 19210737
ENVOY 09 Electronic Control Module; (LH engine), 4.2L
G6 06 Electronic Control Module; (LH front engine compartment), ID 12603530
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12590032
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12602044
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12605843
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
G6 08 Electronic Control Module; (LH front engine compartment), 3.6L
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 19210737
GRAND PRIX 08 Electronic Control Module; (lower air cleaner box), 5.3L
HHR 06 Electronic Control Module; (LH rear engine compartment), 2.4L
HUMMER H3 08 Electronic Control Module; (RH firewall)
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
IMPALA 08-09 Electronic Control Module; (lower part of air cleaner box), 5.3L
ION 06 Electronic Control Module; 2.4L (opt LE5)
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 12607096
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 19210737
ISUZU I-290 08 Electronic Control Module; (RH firewall)
ISUZU I-370 08 Electronic Control Module; (RH firewall)
LACROSSE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
LUCERNE 06 Electronic Control Module; (lower part of air cleaner box), 4.6L
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 12607096
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 19210737
MALIBU 06 Electronic Control Module; 3.9L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/hybrid
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 3.6L
MALIBU 09 Electronic Control Module; 3.6L
MALIBU 09-10 Electronic Control Module; 2.4L, w/hybrid
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
MONTANA 06 Electronic Control Module; (LH engine compartment), (SV6), 3.9L
MONTANA 08-09 Electronic Control Module; (LH engine compartment)
OUTLOOK 08 Electronic Control Module; (behind fan shroud)
PURSUIT 06 Electronic Control Module; (LH front engine compartment), 2.4L
RAINIER 07 Electronic Control Module; (LH engine), 5.3L
RELAY 06 Electronic Control Module; (LH engine compartment), 3.9L
SAAB 9-7X 07 Electronic Control Module; (LH engine), 8 cylinder
SAAB 9-7X 08 Electronic Control Module; (LH engine), 5.3L
SAAB 9-7X 08 Electronic Control Module; (LH engine), 6.0L
SOLSTICE 06 Electronic Control Module; (LH front frame rail)
SRX 08 Electronic Control Module; (LH engine compartment), (4.6L)
STS 06 Electronic Control Module; (LH frame rail), 4.4L
STS 08 Electronic Control Module; (LH frame rail), 4.4L
STS 08 Electronic Control Module; (LH frame rail), 4.6L
TERRAZA 06 Electronic Control Module; (LH engine compartment), 3.9L
TRAILBLAZER 07 Electronic Control Module; (LH engine), 5.3L
TRAILBLAZER 07 Electronic Control Module; (LH engine), 6.0L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12607096
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12636660
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 19210737
TRAILBLAZER 09 Electronic Control Module; (LH engine), 4.2L
UPLANDER 06 Electronic Control Module; (LH engine compartment), 3.9L
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 12607096
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 19210737
UPLANDER 09 Electronic Control Module; (LH engine compartment), (3.9L)
VUE 08 Electronic Control Module; 3.6L
VUE 08-09 Electronic Control Module; 2.4L, VIN Z (8th digit, opt LAT)
VUE 09 Electronic Control Module; 3.6L, VIN 7 (8th digit, opt LY7)
VUE 10 Electronic Control Module; 3.6L
XLR 06 Electronic Control Module; (RH front engine compartment), 4.4L
XLR 08 Electronic Control Module; (RH front engine compartment)
XLR 09 Electronic Control Module; (RH front engine compartment), ID 12607096
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the module with the exact software and calibrations specified by GM for your vehicle’s engine, transmission, and options. This ensures seamless communication and optimal performance, just like a part from the dealer, but without the extra cost and hassle.
Is any additional programming required after installation?
No. This ECM arrives ready to install. Because we program it to your VIN before shipping, you can avoid the expensive programming fees charged by dealerships or repair shops. In some cases, a security or crank position sensor relearn may be necessary, which can often be done without a special scan tool.
Is this a used part from a junkyard?
No, this is not a simple junkyard part. This is a high-quality, inspected component that is professionally programmed with the latest official GM software updates. A junkyard part would not have these updates and would still require costly programming to work with your specific vehicle.
What if my original part number is not 12602044?
That’s okay. This module is a direct replacement for several service numbers, including 12590032, 12603530, and others listed in the description. As long as your vehicle is on the compatibility list, this module will function correctly once programmed to your VIN.