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Home >> Chevrolet >> 2000 >> Express 1/2 Ton Van V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Valid Ref. Pulse Occurred
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Valid Ref. Pulse Occurred

YES/NO:
The scan tool will indicate YES after 2 or more CKP sensor reference pulses have been detected by the VCM.
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