How to replace the Engine Control Module (ECM) on 2006 Buick Lucerne?

Before replacing the Powertrain Control Module (PCM), use a scan tool to record the engine oil life and transaxle fluid life. Turn off the ignition, remove the negative battery cable, and remove necessary parts. Before installing the new PCM, disconnecting all components and programming the PCM, you should check for debris and damage.

OEM 2006 Buick Lucerne Engine Control Module

Engine Control Computer

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2 Engine Control Modules found

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2006 Buick Lucerne PCM Part Number: 12678511
$265.60 MSRP: $538.40
You Save: $272.80 (51%)
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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
- Item Weight: 2.30 Pounds
- Item Dimensions: 8.2 x 7.4 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12678511
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2006 Buick Lucerne Submodels:
- CXL, CXS, Super | 8 Cyl 4.6 L GAS
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2006 Buick Lucerne PCM Part Number: 12600930
$370.61 MSRP: $693.28
You Save: $322.67 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly-Powertrain Control (P05 No-Start PCM) (New); Engine Control Module; ECM; Module, Emission Control System
- Item Weight: 2.30 Pounds
- Item Dimensions: 7.9 x 5.5 x 5.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12600930
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Buick Lucerne Submodels:
- CX, CXL | 6 Cyl 3.8 L GAS

2006 Buick Lucerne Engine Control Module

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2006 Buick Lucerne Engine Control Module Parts and Q&A

Q: How to replace the Engine Control Module (ECM) on 2006 Buick Lucerne?
A: Before replacing the Powertrain Control Module (PCM), use a scan tool to record the engine oil life and transaxle fluid life. Turn off the ignition, remove the negative battery cable, and remove necessary parts. Before installing the new PCM, disconnecting all components and programming the PCM, you should check for debris and damage.