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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Voltage Monitoring
  1. Faulty Brake Pedal Travel Sensor
  2. Open or short of Brake Pedal Travel Sensor circuit
Case 1 Enable Conditions
  • A failure is detected if PDT is not matched with PDF more than 10mm & 30% for 3sec.

* PDT: Brake pedal travel sensor - PDT
MIL
  • The EBD/RBS/ABS/ESP (ESC)/DBC warning lamps are activated. The AVH warning lamp is activated in case of the vehicle equipped with AVH.
Case 2 Enable Conditions
  • In case that the pedal signal is less than 5mm and has no change (Δpedal<5mm) under no-control for 200ms and,
  • all conditions below are satisfied for more than 500ms during standstill.
  • more than 3 conditions are satisfied for more that 1500ms while driving
  • more than 2 conditions are satisfied for more that 2500ms while driving
  1. 1-1) PSP pressure is more than 15bar and changes more than 10bar
  2. 1-2) BCP1 pressure is more than 15bar and changes more than 10bar
  3. 1-3) BCP2 pressure is more than 15bar and changes more than 10bar
  4. 1-4) BLS signal is "On" for more than 50ms
  5. Pedal signal is maintained more than 20mm for 300 sec while driving
  6. more than 3 conditions below are satisfied:
  7. 3-1) Pedal signal is more than 20mm for 3 sec while acceleration pedal is on
  8. 3-2) The minimum pedal stroke is more than 20mm during 10 Kph vehicle speed increase
  9. 3-3) Pedal stroke is more than 20mm for 3 sec while BLS signal is off
  10. 3-4) Pedal stroke is more than 20mm for 3 sec while PSP pressure is less than 0.5bar and has no change.
  11. Pedal is changed over 15mm more than 50 times for 3s.
MIL
  • The EBD/RBS/ABS/ESP (ESC)/DBC warning lamps are activated. The AVH warning lamp is activated in case of the vehicle equipped with AVH. When PDT and PDF is malfunction together.
Reset condition
  • After ignition switch turned off and on again and Brake Pressed and Released.
Remarks
  • When both PDT and PDF are failed, EBC/DBC/AVH lamps are on.
NOTE: IBAU: Integrated Brake Accumulation Unit
LDC: Low voltage DC/DC Converter
RBS: Regenerative Brake Cooperation System
ABS: Anti-lock Brake System
EBD: Electronic Brake-force Distribution System
VDC: Vehicle Dynamic Control
AVH: Auto Vehicle Hold
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