FixVault
Home › Kia › 2017 › Sedona L › Repair and Diagnosis › Brakes › Traction Control › Electronic Stability Control (ESC) System › Troubleshooting › Failure Diagnosis › Problem Symptoms Table

Problem Symptoms Table

Symptom Suspect Area
ABS does not operate. Replace the HECU only when the problem persists even though conditions 1-4 are satisfied.
  1. Check the DTC reconfirming that normal code is output.
  2. Check power source circuit.
  3. Check speed sensor circuit.
  4. Check hydraulic circuit for leakage.
ABS does not operate intermittently. Replace the ABS actuator assembly only when the problem persists even though conditions 1-4 are satisfied.
  1. Check the DTC reconfirming that normal code is output.
  2. Check wheel speed sensor circuit.
  3. Check stop lamp switch circuit.
  4. Check hydraulic circuit for leakage.
Communication with GDS is not possible.
(Communication with any system is not possible)
  1. Power source circuit
  2. CAN line
Communication with GDS is not possible.
(Communication with ABS only is not possible)
  1. Power source circuit
  2. CAN line
  3. HECU
When ignition key is turned ON (engine OFF),
the ABS warning lamp does not light up.
  1. ABS warning lamp circuit
  2. HECU
Even after the engine has started, the ABS warning lamp remains ON.
  1. ABS warning lamp circuit
  2. HECU
CAUTION: During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent the wheels from locking and is not an abnormality.
About FixVault