FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Hummer
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2004
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H1 V8-6.5L DSL Turbo
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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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Data Link Connector
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Locations
Data Link Connector: Locations
The connector is a black 16-way connector. It is located under the instrument panel near the steering column.