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Home >> Chevrolet >> 2002 >> Astro Van 2WD V6-4.3L VIN X >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Description and Operation >> Engine Controls Information
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Engine Controls Information

The driveability and emissions information describes the function and operation of the Powertrain Control Module (PCM).

The computers and control systems information contains the following:
^ Component locations
^ Wiring diagrams
^ PCM terminal end view and terminal definitions
^ Powertrain On-Board Diagnostic (OBD) System Check
^ Diagnostic Trouble Code (DTC) tables

The Component System includes the following items:
^ Component and circuit description
^ On-vehicle service for each sub-system
^ Functional checks and diagnostic tables

The DTCs also contain diagnostic support information containing circuit diagrams, circuit or system information, and helpful diagnostic information.