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GMC Truck
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1992
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Suburban 1/2 Ton 2WD V8-350 5.7L
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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
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Brake Light Switch - Four Wheel Anti-Lock Brake System
Brake Light Switch - Four Wheel Anti-Lock Brake System
4WAL Code 81 (Brake Switch Shorted Or Open).:
