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Home >> Pontiac >> 1999 >> Firefly (CANADA) L3-1.0L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> ISC Duty Cycle
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ISC Duty Cycle

Scan Tool Range 20% to 40%. The ISC Duty Cycle parameter indicates the opening of the throttle valve by the ISC actuator in a measurement of a percentage. The ISC Duty Cycle percentage will increase when the PCM commands a larger throttle valve opening. The ISC Duty Cycle percentage will decrease when the ISC actuator responds to a PCM command for a smaller throttle valve opening.
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