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Hummer
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2008
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H2 4D Utility Wagon
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Repair and Diagnosis
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Engine Mechanical
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Cooling System (Mechanical)
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Engine Cooling
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Diagnostic Information and Procedures
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DTC P0480 or P0481
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DTC Descriptors
DTC Descriptors
DTC P0480
Cooling Fan Relay 1 Control Circuit
DTC P0481
Cooling Fan Relay 2 and 3 Control Circuit