How to replace the Engine Control Module (ECM) on Buick Enclave?

The first step to replace the Engine Control Module (ECM) requires turning off the ignition to avoid harm to system components. The scan tool will acquire and document information about the current engine oil life together with automatic transmission fluid life. The first step involves disconnecting the negative Battery Cable followed by removal of the engine wiring harness connectors from both middle and lower locations at the ecm. When dealing with the ecm bracket removal process you should detach the engine wiring harness clip from the ecm bracket tab. Disconnect the engine wiring harness upper electrical connector from ecm by keeping away from the connector pins to stop electrostatic discharge damage. Use your fingers to raise the retaining tab before extracting the ecm from its support brackets. The bracket may need removal when you remove both its bolts and hardware components. Position the ecm bracket properly and then secure the bolts with 6 nm torque until they reach 53 lb in. Insert the ecm onto bracket support tabs before snapping it beneath the retaining tab. Then reconnect the engine wiring harness upper electrical connector and replace the engine wiring harness clip if you changed the ecm bracket. Reconnect the Battery Cable after connecting both the middle and lower electrical connectors to the ecm. New ecms require programming through the reprogramming procedure to operate correctly.

OEM Buick Enclave Engine Control Module

Engine Control Computer

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Buick Enclave PCM
Part Number: 12653998
$382.20 MSRP: $776.28
You Save: $394.08 (51%)
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 12633555
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2016 Buick Enclave | Base, Convenience, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick Enclave PCM
Part Number: 12651994
$450.23 MSRP: $914.44
You Save: $464.21 (51%)
ADD TO CART
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 12643248
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012 Buick Enclave | Base | 6 Cyl 3.6 L GAS
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Buick Enclave PCM
Part Number: 19300014
$1096.74 MSRP: $1737.11
You Save: $640.37 (37%)
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 Buick Enclave | CX, CXL | 6 Cyl 3.6 L GAS
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Buick Enclave PCM
Part Number: 12678511
$191.75 MSRP: $538.40
You Save: $346.65 (65%)
Ships in 1-2 Business Days
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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:
- 2008 Buick Enclave | CX, CXL | 6 Cyl 3.6 L GAS
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Buick Enclave ECM
Part Number: 12725663
$229.77 MSRP: $466.68
You Save: $236.91 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Module, Emission Control System
- Replaces: 12683348, 12679078, 12659039, 12708794, 12698026, 12687296
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 Buick Enclave | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Enclave PCM
Part Number: 12667002
$243.28 MSRP: $494.12
You Save: $250.84 (51%)
Ships in 1-2 Business Days
ADD TO CART
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:
- 2017 Buick Enclave | Convenience, Leather, Premium | 6 Cyl 3.6 L GAS
View related parts
Buick Enclave 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:
- 2009 Buick Enclave | CX, CXL | 6 Cyl 3.6 L GAS

Buick Enclave Engine Control Module

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Buick Enclave Engine Control Module Parts Questions & Experts Answers

PCM
19300014
Q: How to replace the Engine Control Module (ECM) on Buick Enclave?
A: The first step to replace the Engine Control Module (ECM) requires turning off the ignition to avoid harm to system components. The scan tool will acquire and document information about the current engine oil life together with automatic transmission fluid life. The first step involves disconnecting the negative Battery Cable followed by removal of the engine wiring harness connectors from both middle and lower locations at the ecm. When dealing with the ecm bracket removal process you should detach the engine wiring harness clip from the ecm bracket tab. Disconnect the engine wiring harness upper electrical connector from ecm by keeping away from the connector pins to stop electrostatic discharge damage. Use your fingers to raise the retaining tab before extracting the ecm from its support brackets. The bracket may need removal when you remove both its bolts and hardware components. Position the ecm bracket properly and then secure the bolts with 6 nm torque until they reach 53 lb in. Insert the ecm onto bracket support tabs before snapping it beneath the retaining tab. Then reconnect the engine wiring harness upper electrical connector and replace the engine wiring harness clip if you changed the ecm bracket. Reconnect the Battery Cable after connecting both the middle and lower electrical connectors to the ecm. New ecms require programming through the reprogramming procedure to operate correctly.