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GMC Truck
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1999
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S15/T15 Sonoma P/U 2WD V6-4.3L VIN W
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Electrostatic Discharge Damage
Electrostatic Discharge Damage
In order to prevent electrostatic discharge damage to the
VCM
, do not touch the connector pins or the soldered components on the circuit board.