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HOMESERVICE MANUALSHYUNDAI2009TUCSON LIMITED, 2.0 BREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLESC (ELECTRONIC STABILITY CONTROL) SYSTEMFAILURE DIAGNOSISFAILURE CHECKUP
2009 Hyundai Tucson Limited, 2.0 B

Failure Checkup

2009 Hyundai Tucson Limited, 2.0 BSECTION Failure Checkup
  1. Initial checkup is performed immediately after the HECU power on.
  2. Valve relay checkup is performed immediately after the IG2 ON.
  3. It executes the checkup all the time while the IG2 power is on.
  4. Initial checkup is made in the following cases.
    1. When the failure is not detected now
    2. When ABS and ESC are not in control.
    3. Initial checkup is not made after ECU power on.
    4. If the vehicle speed is over 409 mph (8 km/h) when the brake lamp switch is off.
    5. When the vehicle speed is over 24.8 mph (40 km/h).
  5. Though, it keeps on checkup even if the brake lamp switch is on.
  6. When performing ABS or ESC control before the initial checkup, stop the initial checkup and wait for the HECU power input again.
  7. Judge fail 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.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.