Diesel Data
: Automotive Repair
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Chevy Truck
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1988
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C 3500 Truck 2WD V8-454 7.4L
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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DTC 81
DTC 81
Code 81 (Brake Switch Shorted Or Open).:
