Hummer H1 (2006+). Manual - part 49

OBD-40

On-Board Diagnostics

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Figure OBD-7:   Glow Plug Control Module

11-1-05

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 On-Board Diagnostics  OBD-41

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Figure OBD-8:   Diagnostic Link Connector

OBD-42

On-Board Diagnostics

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Figure OBD-9:   EGR Solenoid

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 On-Board Diagnostics  OBD-43

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Figure OBD-10:   Camshaft and Crankshaft Sensors