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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Abs Diagnosis (Except HEV) (1 Of 2) >> DTC C1501-1F: Switch Failure (Short) >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main action
  • Monitor the switch signal
  1. EPB switch circuit shorted
  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
  • EPB switch failure is detected when the EPB switch input and duty value are abnormal due to short circuit for more than 2 seconds.
Diagnosis time
  • 2 seconds
MIL
  • EPB warning lamp is activated. EBD/ABS/ESC (ESP) warning lamps are not activated.
Reset condition
  • When the EPB switch normal signal is inputted once for each Apply, Release, Neutral value in the same ignition cycle or after ignition switch turned OFF and back ON.