Restore Peak Performance to Your GM Vehicle
Is your 2008-2010 Chevrolet Malibu or other GM vehicle suffering from frustrating, hard-to-diagnose issues? An erratic check engine light, unexpected stalling, poor fuel economy, or a complete no-start condition can often be traced back to a single, critical component: the Engine Control Module (ECM). As the central computer of your vehicle, the ECM is responsible for managing everything from fuel mixture and ignition timing to transmission shifting and emissions control. When it fails, the symptoms can be unpredictable and maddening.
This isn’t just a replacement part; it’s a comprehensive solution. We offer a high-quality ECM, part number 12590032, that arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). Our process installs the latest, most stable software updates from General Motors, ensuring optimal performance and efficiency. This eliminates the need for an expensive trip to the dealership or the use of specialized programming tools, making it a perfect choice for both professional mechanics and DIY enthusiasts.
From the Diagnostic Bay: The Case of the Hybrid Gremlin
I once had a 2009 Malibu Hybrid in my bay that was driving the owner crazy. It would randomly fail to start, but only after it had been driven and sat for about an hour. All the battery and starter tests came back perfect. We checked grounds, relays, everything. The scan tool would show a loss of communication with the ECM (U0100) but only intermittently. After days of chasing this electrical ghost, we swapped in a known-good, programmed ECM. The problem vanished instantly. The original module had a hairline fracture on the circuit board that would separate when warm, cutting power internally. It’s a classic example of how a failing ECM can create symptoms that seem to point everywhere else.
Is Your Vehicle Displaying These ECM Failure Symptoms?
A faulty ECM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your engine’s computer may be the culprit:
- âś” Unexplained Check Engine Light (CEL) illumination
- âś” Stalling, stumbling, or hesitation during acceleration
- âś” The engine cranks but refuses to start
- âś” Noticeable decrease in fuel efficiency
- âś” Harsh or erratic automatic transmission shifting
- âś” Communication error codes, such as U0100, on a scan tool
- âś” Internal module memory error codes, like P0601 or P0606
- âś” Failure to pass an emissions inspection
A Straightforward Guide to Installation
Installing your new ECM is a manageable job for anyone with basic tools. Our pre-programming service handles the most complex part, leaving you with a simple physical swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the ECM: On a 2008-2010 Malibu, the ECM is often located near the firewall or air cleaner housing. The exact location for all compatible vehicles is noted in the fitment list below.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old module. They have locking tabs that need to be released before pulling. Do not force them.
- Remove Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will reuse it.
- Install New Module: Mount your new, pre-programmed ECM in place and secure it with the original hardware.
- Reconnect and Secure: Firmly plug the wiring harnesses into the new module until they click into place. Reconnect the negative battery terminal.
- Final Steps: In some cases, a security relearn procedure may be required. This can typically be done without special tools by cycling the key in the ignition. Consult your vehicle’s service information for specific steps.
Will This Fit My Vehicle?
This ECM is a direct replacement for service number 12590032 and is also interchangeable with part numbers 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. Please verify your vehicle from the extensive list below.
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
Why do you need my VIN number?
Your VIN is essential for us to program the 2008-2010 Malibu ECM with the exact software and calibrations your specific vehicle requires. This includes engine size, transmission type, and any other factory options, ensuring seamless integration and performance.
Is this part difficult to install myself?
For most individuals with basic mechanical skills, this is a very manageable installation. Since the programming is done beforehand, it’s primarily a physical swap of the module. Our installation guide above provides the key steps.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the ECM (e.g., codes P0601-P0606) or a fault in a circuit controlled by it, then yes, this module is the correct solution. It’s always best to have the codes read by a scanner to confirm the diagnosis.
What happens after I purchase?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information. Once we have your VIN, we will program the module and ship it to you, typically within one business day.
Is this a new or used part?
This is a quality, tested, and verified component that has been inspected and prepared to meet or exceed original equipment specifications. It is programmed with the latest GM software for your vehicle.