This is a representative photo of the same part, not the exact unit you'll receive. Since each used part has its own wear, yours may look slightly different.
OEM Engine Control Module (ECM) for 2012-2016 Buick, Cadillac, Chevrolet, & GMC - Left (Driver)
$
79
.95
30-DayReturns
6-monthWarranty
100%Money-Back
Condition: Excellent (A) — like new, minimal to no wear
Professionally inspected and tested.
Product Notes Read before buying
This is a used engine control module (ECM). This is a programmable control module. The module must be programmed at a dealership to ensure driveability and emission standards.
Why Buy Used OEM Parts?
Checked & Tested
We check and test every used part before we sell it. It may show some wear, but it works and is ready to install.
Original Equipment
This is the same part your vehicle came with from the factory. It fits and works just like the original — because it is one.
Works Like New
A few marks on the outside don't change what's inside. The part works the way it should.
Big Savings
Pay 50–80% less than buying new. Same factory part, much lower price.
Not sure? Ask Wrenchy — Your Parts Assistant.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
Buick
4 models(tapclick to hide)
Enclave
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | SUV | 2012 | V6 3.6L | AWD/FWD | Automatic |
| CXL | SUV | 2012 | V6 3.6L | AWD | Automatic |
LaCrosse
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Sedan | 2012 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | AWD/FWD | Automatic |
| Base | Sedan | 2012 | V6 3.6L FLEX | AWD/FWD | Automatic |
| Convenience | Sedan | 2012 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | AWD/FWD | Automatic |
| Convenience | Sedan | 2012 | V6 3.6L FLEX | AWD/FWD | Automatic |
| CXS | Sedan | 2012 | V6 3.6L | FWD | Automatic |
| Leather | Sedan | 2012 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | AWD/FWD | Automatic |
| Leather | Sedan | 2012 | V6 3.6L FLEX | AWD/FWD | Automatic |
| Premium | Sedan | 2012 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | AWD/FWD | Automatic |
| Premium | Sedan | 2012 | V6 3.6L FLEX | AWD/FWD | Automatic |
| Touring | Sedan | 2012 | V6 3.6L FLEX | AWD/FWD | Automatic |
Regal
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Sedan | 2012 | L4 2.0L FLEX Turbo | FWD | Automatic |
| Base | Sedan | 2012 | L4 2.4L FLEX | FWD | Automatic |
| Base | Sedan | 2012 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | FWD | Automatic |
| GS | Sedan | 2012 | L4 2.0L FLEX Turbo | FWD | Automatic & Manual |
| Premium | Sedan | 2012 | L4 2.0L FLEX Turbo | FWD | Automatic & Manual |
| Premium | Sedan | 2012 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | FWD | Automatic & Manual |
Verano
2012-2013
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Sedan | 2012 - 2013 | L4 2.4L FLEX | FWD | Automatic |
| Convenience | Sedan | 2012 - 2013 | L4 2.4L FLEX | FWD | Automatic |
| Leather | Sedan | 2012 - 2013 | L4 2.4L FLEX | FWD | Automatic |
| Premium | Sedan | 2013 | L4 2.0L Turbo | FWD | Automatic & Manual |
| Turbo | Sedan | 2013 | L4 2.0L Turbo | FWD | Automatic & Manual |
Cadillac
2 models(tapclick to hide)
CTS
2012-2014
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 3.0L | Coupe | 2012 | V6 3.0L | AWD/RWD | Automatic & Manual |
| 3.0L | Sedan | 2012 | V6 3.0L | AWD/RWD | Automatic & Manual |
| 3.0L | Wagon | 2012 | V6 3.0L | AWD/RWD | Automatic & Manual |
| 3.6L | Coupe | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| 3.6L | Sedan | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| 3.6L | Wagon | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| Base | Coupe | 2012 - 2013 | V6 3.0L | AWD/RWD | Automatic |
| Base | Coupe | 2012 | V6 3.0L | AWD/RWD | Manual |
| Base | Sedan | 2012 - 2013 | V6 3.0L | AWD/RWD | Automatic |
| Base | Sedan | 2012 | V6 3.0L | AWD/RWD | Manual |
| Base | Wagon | 2012 - 2013 | V6 3.0L | AWD/RWD | Automatic |
| Base | Wagon | 2012 | V6 3.0L | AWD/RWD | Manual |
| Base | Coupe | 2012 - 2013 | V6 3.6L | RWD | Automatic |
| Base | Coupe | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| Base | Sedan | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| Base | Wagon | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| Coupe | Coupe | 2012, 2014 | V6 3.6L | RWD | Automatic |
| Luxury | Sedan | 2012 - 2014 | V6 3.0L | AWD/RWD | Automatic |
| Luxury | Sedan | 2012 | V6 3.0L | AWD/RWD | Manual |
| Luxury | Wagon | 2012 - 2014 | V6 3.0L | AWD/RWD | Automatic |
| Luxury | Wagon | 2012 | V6 3.0L | AWD/RWD | Manual |
| Luxury | Coupe | 2012 | V8 6.2L Supercharged | RWD | Automatic |
| Luxury | Sedan | 2012 | V8 6.2L Supercharged | RWD | Automatic |
| Performance | Coupe | 2012 | V6 3.6L | AWD/RWD | Automatic |
| Performance | Sedan | 2012 | V6 3.6L | AWD/RWD | Automatic |
| Performance | Wagon | 2012 | V6 3.6L | AWD/RWD | Automatic |
| Premium | Coupe | 2012 - 2013 | V6 3.0L | RWD | Automatic |
| Premium | Sedan | 2012 - 2013 | V6 3.0L | RWD | Automatic |
| Premium | Coupe | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| Premium | Coupe | 2012 - 2014 | V6 3.6L | RWD | Automatic |
| Premium | Sedan | 2012 - 2014 | V6 3.6L | RWD | Automatic |
| Premium | Sedan | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| Premium | Wagon | 2012 | V6 3.6L | AWD/RWD | Automatic & Manual |
| V | Coupe | 2012 - 2014 | V8 6.2L Supercharged | RWD | Automatic & Manual |
| V | Sedan | 2012 - 2014 | V8 6.2L Supercharged | RWD | Automatic & Manual |
| V | Wagon | 2012 - 2014 | V8 6.2L Supercharged | RWD | Automatic & Manual |
| V Black Diamond | Coupe | 2012 | V8 6.2L Supercharged | RWD | Automatic |
| V Black Diamond | Sedan | 2012 | V8 6.2L Supercharged | RWD | Automatic |
| Base | Coupe | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Base | Sedan | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Base | Wagon | 2013 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Performance | Coupe | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Performance | Sedan | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Performance | Wagon | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Premium | Coupe | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Premium | Sedan | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Premium | Wagon | 2013 - 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| V Luxury | Coupe | 2013 - 2014 | V8 6.2L Supercharged | RWD | Automatic |
| V Luxury | Sedan | 2013 | V8 6.2L Supercharged | RWD | Automatic |
| V Premium Black Diamond | Coupe | 2013 - 2014 | V8 6.2L Supercharged | RWD | Automatic |
| V Premium Black Diamond | Sedan | 2013 | V8 6.2L Supercharged | RWD | Automatic |
| Base | Coupe | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Base | Sedan | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Luxury | Sedan | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Luxury | Wagon | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Luxury | Sedan | 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Luxury | Wagon | 2014 | V6 3.6L FLEX | AWD/RWD | Automatic |
| Performance | Coupe | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Performance | Sedan | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Performance | Wagon | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Premium | Coupe | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Premium | Sedan | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Premium | Wagon | 2014 | L4 2.0L Turbo | AWD/RWD | Automatic |
| Vsport | Sedan | 2014 | V6 3.6L Turbo | RWD | Automatic |
| Vsport Premium | Sedan | 2014 | V6 3.6L Turbo | RWD | Automatic |
SRX
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | SUV | 2012 | V6 3.6L FLEX | - |
| Luxury | SUV | 2012 | V6 3.6L FLEX | - |
| Performance | SUV | 2012 | V6 3.6L FLEX | - |
| Premium | SUV | 2012 | V6 3.6L FLEX | - |
Applies to every configuration above: AWD/FWD | Automatic
Chevrolet
9 models(tapclick to hide)
Camaro
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 1LT | Coupe | 2012 | V6 3.6L | RWD | Automatic |
| 1SS | Coupe | 2012 | V8 6.2L | RWD | Manual |
| 2SS | Convertible | 2012 | V8 6.2L | RWD | Automatic |
| 2SS | Coupe | 2012 | V8 6.2L | RWD | Automatic |
| LS | Coupe | 2012 | V6 3.6L | RWD | Automatic & Manual |
| LT | Convertible | 2012 | V6 3.6L | RWD | Automatic & Manual |
| LT | Coupe | 2012 | V6 3.6L | RWD | Automatic & Manual |
| SS | Convertible | 2012 | V8 6.2L | RWD | Automatic & Manual |
| SS | Coupe | 2012 | V8 6.2L | RWD | Automatic & Manual |
| ZL1 | Coupe | 2012 | V8 6.2L Supercharged | RWD | Automatic & Manual |
Caprice
2012-2013
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| PPV | Sedan | 2012 - 2013 | V6 3.6L FLEX | - |
| PPV | Sedan | 2012 - 2013 | V8 6.0L FLEX | - |
Applies to every configuration above: RWD | Automatic
Captiva Sport
2012-2013
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | SUV | 2012 - 2013 | L4 2.4L FLEX | FWD | Automatic |
| LT | SUV | 2012 - 2013 | V6 3.0L FLEX | FWD | Automatic |
| LT | SUV | 2012 | V6 3.0L | AWD/FWD | Automatic |
| LTZ | SUV | 2012 | V6 3.0L FLEX | AWD/FWD | Automatic |
| LT | SUV | 2013 | L4 2.4L FLEX | AWD/FWD | Automatic |
| LT | SUV | 2013 | V6 3.0L FLEX | AWD | Automatic |
| LTZ | SUV | 2013 | L4 2.4L FLEX | FWD | Automatic |
Equinox
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | SUV | 2012 | L4 2.4L FLEX | - |
| LS | SUV | 2012 | L4 2.4L | - |
| LT | SUV | 2012 | L4 2.4L FLEX | - |
| LT | SUV | 2012 | L4 2.4L | - |
| LT | SUV | 2012 | V6 3.0L FLEX | - |
| LT | SUV | 2012 | V6 3.0L | - |
| LTZ | SUV | 2012 | L4 2.4L FLEX | - |
| LTZ | SUV | 2012 | L4 2.4L | - |
| LTZ | SUV | 2012 | V6 3.0L FLEX | - |
| LTZ | SUV | 2012 | V6 3.0L | - |
Applies to every configuration above: AWD/FWD | Automatic
Impala
2012-2016
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | Sedan | 2012 - 2013 | V6 3.6L | - |
| LS | Sedan | 2012 - 2013 | V6 3.6L FLEX | - |
| LT | Sedan | 2012 - 2014, 2016 | V6 3.6L | - |
| LT | Sedan | 2012 - 2016 | V6 3.6L FLEX | - |
| LTZ | Sedan | 2012 - 2016 | V6 3.6L FLEX | - |
| LTZ | Sedan | 2012 - 2014, 2016 | V6 3.6L | - |
| Police | Sedan | 2012 - 2013 | V6 3.6L FLEX | - |
| Police | Sedan | 2012 - 2013 | V6 3.6L | - |
| Eco | Sedan | 2014 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | - |
| LS | Sedan | 2014 - 2016 | L4 2.5L | - |
| LT | Sedan | 2014 - 2016 | L4 2.5L | - |
| LTZ | Sedan | 2014 - 2016 | L4 2.5L | - |
| LS | Sedan | 2015 - 2016 | V6 3.6L BI-FUEL | - |
| LT | Sedan | 2015 - 2016 | V6 3.6L BI-FUEL | - |
| LS | Sedan | 2016 | L4 2.5L FLEX | - |
| LT | Sedan | 2016 | L4 2.5L FLEX | - |
| LTZ | Sedan | 2016 | L4 2.5L FLEX | - |
Applies to every configuration above: FWD | Automatic
Impala Limited
2014-2016
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | Sedan | 2014 - 2016 | V6 3.6L FLEX | - |
| LT | Sedan | 2014 - 2016 | V6 3.6L FLEX | - |
| LTZ | Sedan | 2014 - 2016 | V6 3.6L FLEX | - |
| Police | Sedan | 2014 - 2016 | V6 3.6L FLEX | - |
| 2015 |
Applies to every configuration above: FWD | Automatic
Malibu
2013
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Eco | Sedan | 2013 | L4 2.4L MILD HYBRID EV-GAS (MHEV) | - |
| LS | Sedan | 2013 | L4 2.5L | - |
| LT | Sedan | 2013 | L4 2.0L Turbo | - |
| LT | Sedan | 2013 | L4 2.5L | - |
| LTZ | Sedan | 2013 | L4 2.0L Turbo | - |
| LTZ | Sedan | 2013 | L4 2.5L | - |
Applies to every configuration above: FWD | Automatic
Orlando
2012-2013
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | SUV | 2012 - 2013 | L4 2.4L | FWD | Automatic & Manual |
| LT | SUV | 2012 - 2013 | L4 2.4L | FWD | Automatic & Manual |
| LTZ | SUV | 2012 - 2013 | L4 2.4L | FWD | Automatic |
Traverse
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | SUV | 2012 | V6 3.6L | - |
| LT | SUV | 2012 | V6 3.6L | - |
| LTZ | SUV | 2012 | V6 3.6L | - |
Applies to every configuration above: AWD/FWD | Automatic
GMC
2 models(tapclick to hide)
Acadia
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | SUV | 2012 | V6 3.6L | - |
| Denali | SUV | 2012 | V6 3.6L | - |
| SL | SUV | 2012 | V6 3.6L | - |
| SLE | SUV | 2012 | V6 3.6L | - |
| SLT | SUV | 2012 | V6 3.6L | - |
Applies to every configuration above: AWD/FWD | Automatic
Terrain
2012
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| SLE | SUV | 2012 | L4 2.4L FLEX | - |
| SLE | SUV | 2012 | L4 2.4L | - |
| SLE | SUV | 2012 | V6 3.0L FLEX | - |
| SLE | SUV | 2012 | V6 3.0L | - |
| SLT | SUV | 2012 | L4 2.4L | - |
| SLT | SUV | 2012 | L4 2.4L FLEX | - |
| SLT | SUV | 2012 | V6 3.0L FLEX | - |
| SLT | SUV | 2012 | V6 3.0L | - |
Applies to every configuration above: AWD/FWD | Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.
Policies, in plain English.
Shipping & Handling
- Standard shipping: 3-7 business days via UPS Ground
- Parts are carefully packaged to prevent damage during transit
6-Month Warranty
All used parts include a 6-month warranty from the date of purchase.
- If your part fails within 6 months, we will send a replacement
- Refunds are only issued if we cannot provide a suitable replacement
- Warranty covers defects — not installation errors, misuse, or damage after installation
Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.
Returns (30 Days)
We accept returns within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: We cover return shipping as part of our 100% money-back guarantee
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
If your part arrives damaged:
- Stop immediately — do not install the part
- Keep all original packaging and boxes
- Take clear photos of the damage and packaging
- Contact us within 48 hours of delivery
We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.
Order Cancellation
Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.
Expert Guides
2010-2013 GM ECM Failure: A Guide for Camaro, CTS, Equinox & More
This in-depth guide covers the common failure symptoms, replacement costs, and critical programming requirements for the Engine Control Module (ECM) used in many popular GM vehicles.
Read Full Guide →Related Trouble Codes (OBD-II)
50 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
P0201
Injector Circuit Fixes & Causes
2009-2013 Chevrolet MALIBU
P0202
Injector Circuit Malfunction Causes & Fixes
2009-2013 Chevrolet MALIBU
P0203
Injector Circuit Malfunction Causes and Fixes
2009-2013 Chevrolet MALIBU
P0268
The 'Ghost' Code for a Non-Existent Cylinder
2009-2014 Gmc ACADIA
P0308
Decoding a Misfire on a Non-Existent Cylinder
2010-2017 Gmc TERRAIN
P0308
An Impossible Misfire Code Explained
2011-2018 Buick REGAL
P0601
Internal Module Memory Error Causes and Fixes
2012-2014 Chevrolet CAPTIVA
P0601
Internal Control Module Memory Error Causes and Fixes
2010-2017 Gmc TERRAIN
P0601
Internal Memory Error Causes and Fixes
2007-2014 Chevrolet IMPALA
P0601
Internal Memory Error Causes and Fixes
2011-2015 Chevrolet CAMARO
P0601
Internal Module Failure Causes & Fixes
2011-2015 Chevrolet CAPRICE
P0601
Internal Control Module Failure Causes and Fixes
2012-2015 Buick VERANO
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
Miscellaneous Information
OEM Part Numbers:
Other: 12616889, 1263029, 12630908, 12637106, 12641994, 12642665, 12643248, 12648906, 12650256, 12651993, 12651994, 12652814, 6W7319E808BA, AA69
Fits Years: 2012 2013 2014 2015 2016
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This part ships with a 6-month warranty. If it doesn't fit or stops working, we replace or refund — no hassle.
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