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Home >> Pontiac >> 1987 >> 6000 V6-173 2.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Function Selector Positions >> DIS - Reference Signal
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DIS - Reference Signal

A "Scan" tool will read this signal and is displayed in rpm. Refer to Ignition System / Description and Operation for more information on the Direct Ignition System (DIS).