How to replace the Engine Control Module (ECM) on Cadillac STS?

The replacement process for the Engine Control Module (ECM) requires users to disable ignition power because handling pcm connectors and power connections could lead to internal ecm damage. Use a scan tool to gather the engine oil and automatic transmission fluid percent lifespan information because not setting replacement values on the new module will reset them to 100 percent so that it triggers an oil change at 5,000 km (3,000 mi) and automatic transmission fluid change at 83,000 km (50,000 mi) from previous changes. The battery negative cable needs to be disconnected followed by suspension and support of the vehicle before removing the front air deflector . Follow this process to detach the ecm electrical connectors then remove its mounting nuts before taking out the ecm. The new ecm installation requires users to place the module into the vehicle before tightening the mounting nuts to 8 n.m (71 lb in) while reattaching ecm electrical connectors before reinstalling the front air deflector. Lower the vehicle while reconnecting the battery negative cable before performing required ecm programming.

OEM Cadillac STS Engine Control Module

Engine Control Computer

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

5 Engine Control Modules found

View related parts
Cadillac STS PCM Part Number: 12678511
$265.60 MSRP: $538.40
You Save: $272.80 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 12636660, 12607096
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 Cadillac STS | Base, Platinum, V | 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
View related parts
Cadillac STS PCM Part Number: 19300014
$1094.38 MSRP: $1771.85
You Save: $677.47 (39%)
ADD TO CART
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 19300015
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Cadillac STS | Base | 6 Cyl 3.6 L GAS
View related parts
Cadillac STS PCM Part Number: 19300016
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
View related parts
Cadillac STS PCM Part Number: 12576523
Product Specifications
- Other Name: Module, Engine Control; Engine Control Module; ECM; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac STS | Base | 8 Cyl 4.6 L GAS
View related parts
Cadillac STS ECM Part Number: 12600940
$299.25 MSRP: $536.78
You Save: $237.53 (45%)
Product Specifications
- Other Name: Module, Engine Control; Engine Control Module
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac STS | Base | 6 Cyl 3.6 L GAS

Cadillac STS Engine Control Module

Want to cut long-term maintenance and repair costs? Choose OEM Engine Control Module. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Cadillac STS parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Cadillac STS Engine Control Module includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

The Cadillac STS Engine Control Module is well known for its durability and efficiency, being actually the electronic component that adapts the performance of the engine of various Cadillac STS models. This advance Engine Control Module efficiently controls some significant parts by feeding data acquired from the responding sensors in order to attain the correct air-fuel mixture, perfect ignition period, and steady idle speed. Early Cadillac STS ECM might be built-in integrated circuit, while the more recent Cadillac STS ECM could be microprocessor type that can also handle transmission control, thereby acting as a PCM when needed. Because of this, it is possible to make precise changes to fit the driver's needs, making the car both more effective and efficient in its function, which is ideal for drivers who wish to get a unique car. Basically, the Cadillac STS is a mid-size luxury sedan that was first produced four years after 1988 and, as has been discussed, the ECM is critical in this model's ability to live up to its safety and reliability, which comes as part of the Cadillac legacy in the automotive market. More to the point, the Cadillac STS Engine Control Module helps to control additional safety options, such as lane departure warning or blind spot detection, which makes the part increasingly important in contemporary automobiles. Starting with the STS and the options such as the powerful 4.6L Northstar V8 engine, Cadillac carries on to deliver wonderful automobiles. The Cadillac STS Engine Control Module is truly a feature that separates the automobiles from the pretenders; smooth, powerful, and futuristic for an elevated driving experience with predictability.

Cadillac STS Engine Control Module Parts Questions & Experts Answers

ECM
12600940
Q: How to replace the Engine Control Module (ECM) on Cadillac STS?
A:
The replacement process for the Engine Control Module (ECM) requires users to disable ignition power because handling pcm connectors and power connections could lead to internal ecm damage. Use a scan tool to gather the engine oil and automatic transmission fluid percent lifespan information because not setting replacement values on the new module will reset them to 100 percent so that it triggers an oil change at 5,000 km (3,000 mi) and automatic transmission fluid change at 83,000 km (50,000 mi) from previous changes. The battery negative cable needs to be disconnected followed by suspension and support of the vehicle before removing the front air deflector . Follow this process to detach the ecm electrical connectors then remove its mounting nuts before taking out the ecm. The new ecm installation requires users to place the module into the vehicle before tightening the mounting nuts to 8 n.m (71 lb in) while reattaching ecm electrical connectors before reinstalling the front air deflector. Lower the vehicle while reconnecting the battery negative cable before performing required ecm programming.