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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Electric Parking Brake Diagnosis (Except HEV)) >> DTC C1501-01: Switch Failure >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2016 Hyundai Sonata and 2015 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring the Switch signal
  1. EPB switch cirucit open/short circuit
  2. Faulty EPB switch
  3. Driver abnormal switch control (too much activation, pull or push for long time or slowly push/pull switch)
Enable conditions
  • EPB Wake up, battery voltage is in normal range
Threshold value
  • Switch signal is abnormal for more than 2seconds
  • Switch is disconnected for more than 2seconds
  • Switch signal is apply or relase for more than 90 seconds (For apply, vehicle has to be stationary)
Fail Safe
  • EPB function using switch inhibited
Lamp
  • Lamp On
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