Restore Peak Performance to Your Vehicle with a VIN-Programmed ECM
If you’re dealing with a frustrating check engine light, poor fuel economy, stalling, or a no-start condition in your 2006 Cadillac CTS, a failing Engine Control Module (ECM) is often the culprit. As the ‘brain’ of your vehicle’s engine management system, a faulty ECM can create a cascade of baffling problems. This replacement Engine Control Module, part number 12590032, is the definitive, reliable solution to get your car running smoothly again. Forget expensive dealership visits and programming fees. We handle the critical step for you: each module is professionally flashed with the latest GM software updates, specifically matched to your vehicle’s VIN before it ships.
Case Study: A Tricky Diagnosis
I remember a 2006 CTS V-Series that came into my shop with an intermittent no-start and random stalling issue. The owner had already replaced the battery and alternator, but the problem persisted. Scans showed a loss of communication code (U0100) that would come and go. After verifying the power and ground circuits to the ECM were solid, we suspected the module itself. Heat seemed to be a factor; the car would fail more often after a long drive. We installed one of these VIN-programmed modules, and the problem was solved instantly. It’s a classic example of how a failing ECM can mimic other issues, costing you time and money on unnecessary parts.
Is Your Vehicle Showing These Symptoms?
A failing ECM can manifest in many ways. If you’re experiencing any of the following, this module is likely the solution you need.
- ✔ Unexplained Check Engine Light (CEL) illumination
- ✔ Engine stalling, stumbling, or rough idling
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Noticeable decrease in fuel efficiency
- ✔ Hesitation or lack of power during acceleration
- ✔ Diagnostic Trouble Codes (DTCs) such as P0601, P0606 (Internal Control Module Failure), or U-series communication codes.
Your Straightforward Guide to Installation
Installing your pre-programmed 2006 CTS Engine Control Module is a job most DIY enthusiasts can handle. Just follow these simple steps to get back on the road.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the ECM: On the 2006 Cadillac CTS, the Engine Control Module is typically found in the engine compartment on the right-hand (passenger) side.
- Disconnect Connectors: Carefully release the locking tabs and unplug the wiring harness connectors from the old module. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket.
- Install the New Module: Secure your new, pre-programmed ECM onto the mounting bracket.
- Reconnect Everything: Plug the wiring harnesses firmly into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn: Your vehicle may require a security relearn procedure to recognize the new ECM. This can typically be done without special tools by cycling the key in the ignition. Consult your vehicle’s service manual for the specific procedure.
Verified Vehicle Compatibility
This module is a direct replacement for service number 12590032 and is interchangeable with 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. It fits a wide range of GM vehicles. Please verify your specific model and options below:
ACADIA 08 (behind fan shroud), ID 19210737 (PCM)
ALLURE 08-09 (lower air cleaner housing), 5.3L
AURA 08-09 (RH firewall), 2.4L, w/hybrid
AURA 08-09 (RH firewall), 3.6L
CANYON 08 (RH firewall)
COBALT 06 (LH front engine compartment), 2.4L (VIN B)
COLORADO 08 (RH firewall)
CTS 06 (RH engine compartment), V-Series, ID 12603530
DEVILLE 05 (LH engine compartment), ID 12590032
DTS 06, 08
ENCLAVE 08 (behind fan shroud), ID 12607096 or 19210737
ENVOY 07-08 5.3L (LH engine)
ENVOY 08 4.2L (LH engine), ID 12607096, 19210737, or 12636660
ENVOY 09 4.2L (LH engine)
G6 06 (LH front engine compartment), ID 12603530
G6 07 (LH front engine compartment), 3.6L, ID 12590032, 12602044, 12603530, 12605843, 12607096, or 12618163
G6 08 (LH front engine compartment), 3.6L
G6 09 (LH front engine compartment), 3.6L, ID 19210737 or 12607096
GRAND PRIX 08 (lower air cleaner box), 5.3L
HHR 06 (LH rear engine compartment), 2.4L
HUMMER H3 08 (RH firewall)
IMPALA 06 (lower part of air cleaner box), 3.5L or 3.9L
IMPALA 08-09 (lower part of air cleaner box), 5.3L
ION 06 2.4L (opt LE5)
ISUZU ASCENDER 08 4.2L (LH engine), ID 19210737 or 12607096
ISUZU I-290 08 (RH firewall)
ISUZU I-370 08 (RH firewall)
LACROSSE 08-09 (lower air cleaner housing), 5.3L
LUCERNE 06 (lower part of air cleaner box), 4.6L
LUCERNE 08 (lower part of air cleaner box), 4.6L, ID 12607096 or 19210737
MALIBU 06 3.9L
MALIBU 08 new style, 2.4L w/hybrid or 3.6L
MALIBU 09 3.6L
MALIBU 09-10 2.4L, w/hybrid
MONTE CARLO 06 (lower part of air cleaner box), 3.5L or 3.9L
MONTANA 06 (SV6), 3.9L
MONTANA 08-09 (LH engine compartment)
OUTLOOK 08 (behind fan shroud)
PURSUIT 06 (LH front engine compartment), 2.4L
RAINIER 07 5.3L (LH engine)
RELAY 06 3.9L
SAAB 9-7X 07 8 cyl
SAAB 9-7X 08 5.3L or 6.0L
SOLSTICE 06 (LH front frame rail)
SRX 08 (LH engine compartment), 4.6L
STS 06 4.4L (LH frame rail)
STS 08 4.4L or 4.6L (LH frame rail)
TERRAZA 06 3.9L
TRAILBLAZER 07 5.3L or 6.0L (LH engine)
TRAILBLAZER 08 (LH engine), ID 12636660, 19210737, or 12607096
TRAILBLAZER 09 4.2L (LH engine)
UPLANDER 06, 09 3.9L
UPLANDER 08 3.9L, ID 12607096 or 19210737
VUE 08 3.6L
VUE 08-09 2.4L, VIN Z (opt LAT)
VUE 09 3.6L, VIN 7 (opt LY7)
VUE 10 3.6L
XLR 06 4.4L (RH front engine compartment)
XLR 08 (RH front engine compartment)
XLR 09 (RH front engine compartment), ID 12607096
Do I need to do any programming myself?
Do I need to do any programming myself?
No. The main benefit of our service is that we program the module for you before shipping. All you need to do is provide your vehicle’s 17-digit VIN during checkout. We’ll flash the ECM with the correct, updated software for your exact vehicle. This makes the installation process much simpler.
Is this a simple plug-and-play installation?
Yes, for the most part. Since the programming is done, you just need to physically install it. However, most GM vehicles will require a security relearn procedure after installation for the car to start. This procedure pairs the new ECM to your vehicle’s anti-theft system and can usually be done at home without special scan tools.
How do I find my part number to ensure this is a match?
The part number is printed on a sticker on your original ECM. You can match it to 12590032 or any of the interchangeable service numbers listed in our description. However, our VIN programming ensures compatibility even if your number is slightly different, as long as your vehicle is on the fitment list.
Will this fix my failed emissions test?
If the failed test was caused by an ECM-related fault (like a persistent check engine light or specific trouble codes), then yes, replacing the faulty module should resolve the issue and allow your vehicle’s emissions monitors to run correctly.