S10/T10 P/U 2WD L4-2.2L VIN 4 (1995)
PCM & VCM Diagram
DESCRIPTION
The Powertrain Control Module (PCM) will be commonly referred to as a control module. The control module is designed to maintain exhaust
emission levels to Federal or California standards, while providing good driveability and fuel efficiency. The control module monitors numerous
engine and vehicle functions and controls the following operations:
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Fuel Control
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Ignition Control (IC)
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Knock Sensor (KS) System
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Exhaust Gas Recirculation (EGR)
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Automatic transmision shift functions
OPERATION
