Restore Your Pontiac’s Brain and Performance
If you’re dealing with frustrating, intermittent issues in your 2006 Pontiac Pursuit, the Engine Control Module (ECM) is often the hidden culprit. As the central computer for your engine, a failing ECM can cause a cascade of problems, from a simple check engine light to a car that refuses to start. This isn’t just a replacement part; it’s a reliable, long-term solution. We flash this module with the latest GM-certified software specific to your vehicle’s VIN, ensuring optimal performance and compatibility right out of the box.
A Technician’s Notebook
I remember a 2006 Pursuit that came into my bay with a classic case of ECM failure. The owner was at his wit’s end. The car would run fine for days, then suddenly stall at a stoplight. He’d also get random warning lights that would disappear on the next startup. A standard scan tool showed a few communication error codes (U-codes) but nothing consistent. After checking the main power and ground circuits to the module, we knew the issue was internal. These ECMs, often located in the hot engine bay, endure thousands of heat cycles and vibrations, which eventually cause internal solder joints and components to fail. Installing a VIN-programmed module like this one provided an immediate, permanent fix.
Common Signs of a Failing ECM
A faulty engine computer can manifest in many ways. If you’re experiencing any of the following, your ECM may be the root cause:
- ✔ Persistent Check Engine Light (CEL)
- ✔ Stalling, hesitation, or rough idling
- ✔ Vehicle won’t start, or starts intermittently
- ✔ Poor fuel economy
- ✔ Communication errors with diagnostic scan tools (e.g., U0100)
- ✔ Internal module failure codes like P0601 or P0606
- ✔ Erratic transmission shifting behavior
A Straightforward Guide to Installation
Installing your new ECM is a job most DIYers can handle with basic tools. For the 2006 Pursuit, the ECM is located in the left-hand (driver’s side) front of the engine compartment.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
- Locate the ECM: Find the module in the front LH side of the engine bay. It will have several large electrical connectors attached.
- Disconnect Wiring: Carefully release the locking tabs on each electrical connector and pull them straight out. Never force them. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will need it for the new unit.
- Install the New Module: Mount the new ECM onto the bracket and securely tighten the bolts.
- Reconnect Everything: Plug the electrical connectors back into the new module until they click, ensuring they are fully seated. Reconnect the negative battery terminal.
- Perform Security Relearn: In many GM vehicles, you will need to perform a simple key-cycle security relearn procedure to sync the new ECM with your vehicle’s anti-theft system. This typically takes about 10-15 minutes and requires no special tools.
Verified Vehicle Compatibility
This ECM is a direct replacement for service numbers 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. Please verify your part number or contact us with your VIN to confirm fitment. This module fits a wide range of GM vehicles, including:
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
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the module with the exact software and calibrations for your car’s specific options. This ensures perfect compatibility and function, just like a new part from the dealer, but without the high cost and hassle.
Is this a simple plug-and-play installation?
Yes, for the most part. Because we program it beforehand, you won’t need a trip to the dealer for software flashing. However, you will likely need to perform a simple security relearn procedure, which involves a series of key turns and waiting periods. Instructions are readily available online or in service manuals.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM (with codes like P0601, P0606, or U0100), then yes, this module will resolve the issue. It’s always best to have the codes professionally diagnosed to ensure the ECM is the problem before ordering.
Do I need to send my old part back?
This listing does not require a core return. You can keep or recycle your old module without any additional charges.