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Home >> Kia >> 2021 >> K5 EX >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Control (ESC) System >> Troubleshooting >> Failure Test

Failure Test

  1. Initial test is performed immediately after the HECU is powered on.
  2. Valve relay test is performed immediately after switching "ON" the IG2.
  3. Test are performed at all times the ignition (IG2) is ON.
  4. Initial test is performed in the following cases.
    1. When the failure is not detected momentarily
    2. When ABS and ESC are not in control.
    3. If initial test is not made after supplying power to ECU.
    4. If the vehicle speed is over 5 mph (8 km/h) with the brake lamp switched off.
    5. When the vehicle speed is over 24.8 mph (40 km/h).
  5. Test continues even if the brake lamp is switched on.
  6. When performing ABS or ESC control before the initial test, stop the initial test and wait for the HECU power input again.
  7. Judge failure in the following cases.
    1. When the power is normal.
    2. From the point in which the vehicle speed reaches 4.9 mph(8 km/h) after HECU power on.
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