Signal circuit Inspection

Check Short to battery
1. Ignition "OFF"
2. Disconnect Front height sensor connector.
3. Ignition "ON"
4. Measure the voltage between Front height sensor's signal wiring of wiring harness side and chassis ground.
  Specification: below 5V
  
  Fig 1: Measuring Voltage Between Front Height Sensor Signal Wiring And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
5. Is "voltage" display near the specified value?
  YES
  - Go to " 2 Check short between power circuit and signal circuit"
  NO
  - Repair short to battery and go to "VERIFICATION OF VEHICLE REPAIR ".
Check short between power circuit and signal circuit
1. Ignition "OFF"
2. Disconnect Front height sensor connector and ECU connector.
3. Measure the resistance between Front height sensor's signal wiring of wiring harness side and Power terminal.
  Specification: Discontinuity (Infinite Ω)
  
  Fig 2: Measuring Resistance Between Front Height Sensor Signal Wiring And Power Terminal
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured resistance within specification?
  YES
  - Go to "GROUND CIRCUIT INSPECTION " procedure.
  NO
  - Repair short between power circuit and signal circuit and go to "VERIFICATION OF VEHICLE REPAIR ".