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GMC Truck
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2003
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C 2500 Truck 2WD V8-6.0L VIN U
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Repair and Diagnosis
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Transmission Control Systems
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4L80-E/4L85-E Automatic Transmission
4L80-E/4L85-E Automatic Transmission
Valve Controls and Brake Switch:
Switch Inputs:
Tow/Haul Switch and PNP Switch Inputs:
Vehicle Speed Signal and 4WD Low Signal:
