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Home >> Hummer >> 2010 >> H3 L5-3.7L >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Diagrams

Engine Control Module: Diagrams

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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)