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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Abs/ESC Diagnosis (HEV) (1 Of 2)) >> DTC C1501-93: Switch Failure >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

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Troubleshooting Condition Possible Cause
Main Action
  • Monitor the EPB switch signal
  1. EPB switch circuit stuck
  2. Faulty EPB switch
  3. Driver's abnormal switch control (Too many activation, pull or push for long time or slowly push/pull switch)
Threshold Value
  • A failure is detected when the switch is stuck in apply/release state for more than 90 seconds while the vehicle speed is below 4 kph (2.49 MPH)
MIL
  • EPB warning lamp is activated
Reset Condition
  • When the normal switch signal (neutral) is inputted for more than 2 seconds
NOTE: * IEBM (Integrated Electric Brake Module: ESP Control Module)