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Home >> Kia >> 2021 >> Sedona SX >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis >> DTC C1501-01: Switch Failure >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal Monitoring
  • EPB Switch Circuit Open/Short
  • Faulty EPB Switch
Threshold Value Case 1
  • Switch wiring circuit open for more than 2s
Case 2
  • Short circuit to GND is detected in the switch for more than 2s
Case 3
  • Short circuit to battery is detected in the switch for more than 2s
Case 4
  • Switch wiring circuit short to each other for more than 2s
Case 5
  • Switch stuck "ON" is detected for more than 90s on under 4 km/h (2.5 Mph) of vehicle speed
Fail Safe
  • Case 1, 2, 3, 4
    • Parking Brake Apply/Release/Dynamic Braking/Dynamic Braking (ESC) inhibited
  • Case 5
    • Parking Brake Apply/Dynamic Braking/Dynamic Braking (ESC) inhibited
Warning Lamp
  • Warning Lamp "ON"
Clear Condition
  • Ignition "OFF" and then "ON" or Return to normal state