EA4-x NTC 0x0A3(0) Duty Cycle Exceeded
NTC Overview
NTC 0x0A3.0 Duty Cycle Exceeded
(Reduced Performance)
Description:
•This diagnostic logs a fault when the thermal duty cycle filters exceed a calibrated threshold relative to thermal duty cycle performance.
Diagnostic Overview:
•Thermal duty cycle performance is customer specific and the duty cycle filter calibrations are designed to meet the specification while thermally protecting system components.
•The duty cycle filters monitor the current load supplied to the components (which is directly related to power loss and hence temperature rise) . If the current level and duration is above a specified performance, a limit is applied via a thermal limit table and a flag is set when the filter max output exceeds a calibrated limit.
Typical Fault Response:
•Response for this diagnostic is F3
•This is a recoverable fault that clears once the max filter output falls below the threshold within an ignition cycle.
Probable Sources
(Most to Least Probable):
•High current input for extended period of time.
•Excessive steering usage by the driver.
Initialization | |
Periodic | X |
Event |
Date | Revision | Initials |
08FE16 | Initial Release | JK |
Description of Unusual Event setting NTC | Root Cause / Explanation |
Date | FDD & Rev | Modifications to Diagnostic Function |
Algorithm Changes / Lessons Learned / Revision Log