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

Before replacing the Engine Control Module (ECM) verify that the ignition is off to protect the machine components. Disconnection of the engine control module ground wire from the ECM starts by removing its screw that secures the wire to the module. Touching the connector pins should be avoided to stop electrostatic discharge damage from occurring. You must open the release levers before you disconnect the ECM connectors from the Engine Control Module. Start your replacement of the ECM by removing the nuts attached to the ECM bracket and then pulling out the ECM from its position. Position the ECM to the ECM bracket with the ignition off before securing it with nuts that need to be tightened to 8 N.m (71 lb in). Check how the harness connectors match with ECM connectors before guiding all parts into place with the release lever securely locked. Replace the screw which secures the ECM ground wire to the ECM then tighten this screw to 4.5 N.m (40 lb in). Use the Service Programming System to program the ECM. After programming the new GM SPO Replacement Part to replace an ECM it immediately acquires the fuel continue password. The 10-minute or 30-minute relearn process needs to be executed for learning the current vehicle's theft deterrent control module password whenever an ECM transfers to a different vehicle. Programming of the theft deterrent system components becomes necessary after installing an ECM which originated from another vehicle. Also run the idle learn procedure.

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

Every Engine Control Module (ECM) replacement process begins with retrieving the current engine oil life percentage through a scan tool. Pulling the negative Battery Cable in combination with upper and lower connector retainer disengagement allows the removal of ecm connectors from their position. The next step requires detachment of the retainer tabs holding the ecm to the bracket before extracting the ecm. First insert the bottom ecm tabs into the bracket and then apply pressure to push the ecm which makes it secure. Thoroughly connect the electrical connectors by inserting them into retainers that attach to the upper and lower sections. When completing ecm programming always verify the engine oil life input is correct to prevent defaulting to 100% usage that will instruct an early oil change at the 5,000 km (3,000 mi) limit.

OEM Cadillac Engine Control Module

Engine Control Computer

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78 Engine Control Modules found

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Cadillac ECM Part Number: 12692068
$279.58 MSRP: $566.80
You Save: $287.22 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu) E92 Service ECM, 5 Byt; Engine Control Module
- Replaced by: 12704476
Fits the following Cadillac Models:
- ATS | 2017 | V | 6 Cyl 3.6 L GAS
- CTS | 2017 | V, Vsport, Vsport Premium Luxury | 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
- Escalade | 2017-2019 | Base, Luxury, Platinum, Premium Luxury | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Escalade ESV | 2017-2018 | Base, Luxury, Platinum, Premium Luxury | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- XTS | 2017 | Vsport Platinum, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac ECM Part Number: 12692067
$278.29 MSRP: $564.16
You Save: $285.87 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu) E92 Service ECM 2-Byte; Engine Control Module
- Replaced by: 12704477
Fits the following Cadillac Models:
- ATS | 2013-2019 | Base, Luxury, Performance, Premium, V | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- CTS | 2014-2016 | Luxury, Performance, Premium, V, Vsport, Vsport Premium | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
- Escalade | 2015-2016 | Base, Luxury, Platinum, Premium | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Escalade ESV | 2015-2016 | Base, Luxury, Platinum, Premium | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- XTS | 2014-2016 | Vsport Platinum, Vsport Premium | 6 Cyl 3.6 L GAS
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Cadillac ECM Part Number: 88999120
$116.61 MSRP: $217.22
You Save: $100.61 (47%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; Module, Emission Control System
- Replaces: 01226462, 1226462
Fits the following Cadillac Models:
- DeVille | 1985 | Base, Cabriolet, d'Elegance | 6 Cyl 4.3 L DIESEL, 8 Cyl 4.1 L GAS
- Fleetwood | 1985 | 75, 75 Formal, Base, Brougham, Brougham d'Elegance, d'Elegance | 6 Cyl 4.3 L DIESEL, 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac ECM Part Number: 12668693
$254.35 MSRP: $477.67
You Save: $223.32 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Engine Control Module
- Replaced by: 12725784
Fits the following Cadillac Models:
- CT6 | 2016-2017 | Luxury, Platinum, Premium Luxury | 6 Cyl 3.0 L GAS
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Cadillac ECM Part Number: 88999202
$218.56 MSRP: $408.66
You Save: $190.10 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly, Powertrain Control (Remanufacture); Engine Control Module; Module, Emission Control System
- Replaces: 16207768
Fits the following Cadillac Models:
- Allante | 1993 | Base, Indianapolis 500 Pace Car, Value Leader | 8 Cyl 4.6 L GAS
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Cadillac ECM Part Number: 12725784
$254.35 MSRP: $477.67
You Save: $223.32 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Module, Emission Control System
- Replaces: 12668693, 12709199, 12679077, 12683347, 12687295
Fits the following Cadillac Models:
- CT6 | 2016-2019 | Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.0 L GAS
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Cadillac ECM Part Number: 12659039
$263.00 MSRP: $476.02
You Save: $213.02 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Engine Control Module
- Replaced by: 12725663
Fits the following Cadillac Models:
- ATS | 2016 | Luxury, Performance, Premium | 6 Cyl 3.6 L GAS
- CT6 | 2016-2017 | Base, Luxury, Platinum, Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac ECM Part Number: 12602801
$534.19 MSRP: $962.30
You Save: $428.11 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module, Powertrain Control (P59)
- Replaced by: 89017749
Fits the following Cadillac Models:
- CTS | 2004-2005 | V | 8 Cyl 5.7 L GAS
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Cadillac ECM Part Number: 12725787
$280.87 MSRP: $508.39
You Save: $227.52 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/O Calibration); Module, Emission Control System
Fits the following Cadillac Models:
- XT5 | 2023 | Luxury, Premium Luxury | 4 Cyl 2.0 L GAS
- XT6 | 2023-2024 | Luxury | 4 Cyl 2.0 L GAS
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Cadillac PCM Part Number: 12678513
$333.65 MSRP: $624.14
You Save: $290.49 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 12633264
Fits the following Cadillac Models:
- CTS | 2010-2015 | V | 8 Cyl 6.2 L GAS
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Cadillac PCM Part Number: 12667002
$248.14 MSRP: $504.00
You Save: $255.86 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
Fits the following Cadillac Models:
- XTS | 2017-2019 | Base, Livery, Luxury, Platinum, Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac ECM Part Number: 88999124
$116.79 MSRP: $218.42
You Save: $101.63 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module
- Replaces: 01226866, 1226866
Fits the following Cadillac Models:
- Eldorado | 1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac ECM Part Number: 12725415
$280.17 MSRP: $526.15
You Save: $245.98 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/O Calibration); Module, Emission Control System
- Replaces: 12718010
Fits the following Cadillac Models:
- CT4 | 2022-2024 | Luxury, Premium Luxury, Sport, V | 4 Cyl 2.0 L GAS, 4 Cyl 2.7 L GAS
- CT5 | 2022 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- XT4 | 2024 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
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Cadillac ECM Part Number: 12703874
$277.40 MSRP: $520.94
You Save: $243.54 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/O Calibration); Engine Control Module; Module, Emission Control System
- Replaced by: 12726539
Fits the following Cadillac Models:
- CT4 | 2020-2021 | Luxury, Premium Luxury, Sport, V | 4 Cyl 2.0 L GAS, 4 Cyl 2.7 L GAS
- CT5 | 2020-2024 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
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Cadillac ECM Part Number: 12624927
$388.99 MSRP: $790.08
You Save: $401.09 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Engine Control Module; Module, Emission Control System
Fits the following Cadillac Models:
- Escalade | 2010-2013 | Hybrid, Hybrid Platinum | 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV)
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Cadillac ECM Part Number: 12729311
$409.41 MSRP: $741.02
You Save: $331.61 (45%)
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/O Calibration); Module, Emission Control System
- Replaced by: 12740833
Fits the following Cadillac Models:
- CT4 | 2024 | V Blackwing | 6 Cyl 3.6 L GAS
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Cadillac ECM Part Number: 12623327
$308.21 MSRP: $552.85
You Save: $244.64 (45%)
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module
- Replaces: 12614423
Fits the following Cadillac Models:
- CTS | 2008-2009 | Base, V | 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
- SRX | 2008-2009 | Base | 6 Cyl 3.6 L GAS
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Cadillac ECM Part Number: 12629278
$258.14 MSRP: $463.04
You Save: $204.90 (45%)
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module
- Replaces: 12611182
Fits the following Cadillac Models:
- Escalade | 2009 | Hybrid | 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV)
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Cadillac ECM Part Number: 12723949
$188.07 MSRP: $337.34
You Save: $149.27 (45%)
Product Specifications
- Other Name: Module Assembly-Engine Control (W/O Calibration); Module, Emission Control System
- Replaces: 24001956
Fits the following Cadillac Models:
- Escalade | 2021-2023 | Luxury, Premium Luxury, Premium Luxury Platinum, Sport, Sport Platinum | 6 Cyl 3.0 L DIESEL
- Escalade ESV | 2021-2023 | Luxury, Premium Luxury, Premium Luxury Platinum, Sport, Sport Platinum | 6 Cyl 3.0 L DIESEL
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Cadillac ECM Part Number: 12600940
$299.25 MSRP: $536.78
You Save: $237.53 (45%)
Product Specifications
- Other Name: Module, Engine Control; Engine Control Module
Fits the following Cadillac Models:
- STS | 2005-2007 | Base | 6 Cyl 3.6 L GAS

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Cadillac Engine Control Module

Choose OEM Engine Control Module, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Cadillac's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Cadillac Engine Control Module. You can shop at highly competitive prices and protect your budget. All our genuine Cadillac parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Cadillac Engine Control Module Parts and Q&A

ECM
19260507
Q: How to replace the Engine Control Module (ECM) on Cadillac CTS?
A:
Before replacing the Engine Control Module (ECM) verify that the ignition is off to protect the machine components. Disconnection of the engine control module ground wire from the ECM starts by removing its screw that secures the wire to the module. Touching the connector pins should be avoided to stop electrostatic discharge damage from occurring. You must open the release levers before you disconnect the ECM connectors from the Engine Control Module. Start your replacement of the ECM by removing the nuts attached to the ECM bracket and then pulling out the ECM from its position. Position the ECM to the ECM bracket with the ignition off before securing it with nuts that need to be tightened to 8 N.m (71 lb in). Check how the harness connectors match with ECM connectors before guiding all parts into place with the release lever securely locked. Replace the screw which secures the ECM ground wire to the ECM then tighten this screw to 4.5 N.m (40 lb in). Use the Service Programming System to program the ECM. After programming the new GM SPO Replacement Part to replace an ECM it immediately acquires the fuel continue password. The 10-minute or 30-minute relearn process needs to be executed for learning the current vehicle's theft deterrent control module password whenever an ECM transfers to a different vehicle. Programming of the theft deterrent system components becomes necessary after installing an ECM which originated from another vehicle. Also run the idle learn procedure.
PCM
19210738
Q: How to replace the Engine Control Module (ECM) on Cadillac Escalade?
A:
Every Engine Control Module (ECM) replacement process begins with retrieving the current engine oil life percentage through a scan tool. Pulling the negative Battery Cable in combination with upper and lower connector retainer disengagement allows the removal of ecm connectors from their position. The next step requires detachment of the retainer tabs holding the ecm to the bracket before extracting the ecm. First insert the bottom ecm tabs into the bracket and then apply pressure to push the ecm which makes it secure. Thoroughly connect the electrical connectors by inserting them into retainers that attach to the upper and lower sections. When completing ecm programming always verify the engine oil life input is correct to prevent defaulting to 100% usage that will instruct an early oil change at the 5,000 km (3,000 mi) limit.