Diesel Data
: Automotive Repair
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Hummer
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2010
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H3 L5-3.7L
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Repair and Diagnosis
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Connector Views
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Engine Control Module
Engine Control Module
Component Connector End Views
Engine Control Module (ECM) X1 (LH9 or LLR)
Engine Control Module (ECM) X2 (LH9 or LLR)
Engine Control Module (ECM) X3 (LH9)
Engine Control Module (ECM) X3 (LLR)