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Home >> Chevrolet >> 1999 >> Astro Van L AWD 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 >> TCC Duty Cycle
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TCC Duty Cycle

Range 0 - 100%
The scan tool indicates the duty cycle that the VCM has commanded to control the TCC solenoid. The TCC solenoid is pulse width modulated to provide a determined amount of pressure, which is displayed as a percentage of the supply pressure. This provides for smooth TCC engagement.
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