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Home >> Chevrolet >> 2000 >> C Tahoe 2WD V8-5.3L VIN T >> 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 >> Ignition 1
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Ignition 1

The scan tool displays 0-25.5 volts. The ignition 1 represents the system voltage measured by the PCM at the ignition feed circuit.