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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 188 (HVAC System - Manual) >> Diagnostic Information and Procedures >> Auxiliary Blower Motor Malfunction >> Component Testing

Component Testing

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Install a 30A fused jumper wire between the auxiliary blower motor supply voltage terminal A and B+. Momentarily install a jumper wire between the auxiliary blower motor low reference terminal B and ground. The auxiliary blower motor should turn on.

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