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Home >> Kia >> 2017 >> Forte EX >> Repair and Diagnosis >> Brakes >> Traction Control >> Electric Stability Program Diagnosis >> DTC C1542-01: Brake Circuit Error >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Signal Monitoring
  1. Poor connector connection
  2. Faulty brake switch circuit
  3. Faulty brake switch
  4. Faulty HECU
Enable Condition
  • Ignition "ON" & Engine "ON"
  • No related DTC is stored
Threshold Value
  • HBA control is prohibited if brake lamp switch "ON" signal is continued for more than 120s, under pressure sensor signal is below 7bar and vehicle speed is over 20km/h (12.5mph) and fault is set if same condition is detected for consecutive 3 times on same ignition cycle.
  • HBA control is prohibited if brake lamp switch "OFF" signal is continued for more than 1s, when pressure sensor signal is over 15bar and no ABS/TCS/ESC/SCC control. and fault is set if same condition is lasted for more than 3s or detected for consecutive 3 times on same ignition cycle.
Disable Condition
  • Ignition "OFF" and then "ON" and brake lamp switch "ON" signal is received and pressure sensor signal is over 15bar for more than 1s and then brake lamp switch "OFF" signal is received and pressure sensor signal is below 7bar for more than 1s.
Warning Lamp
  • ESC (ESP) Warning Indicator Lamp "ON"
Failsafe
  • HBA control is prohibited