Operation CHARM
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Buick
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2009
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Lucerne V8-4.6L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Engine Control Module
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Locations
Engine Control Module: Locations
Powertrain Component Views
Left Front Corner of the Engine Compartment (L37)
1
- Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
2
- Engine Control Module (ECM) (L37), in the Air Cleaner Assembly