Power Circuit, Signal Circuit, Ground Circuit Inspection

Voltage Inspection for Power Circuit
1. IG key "OFF".
2. Take off a wiring connector of Height sensor.
3. IG "ON"
4. Measure voltage between power wiring terminal of Height sensor connector and chassis ground.
  Specification: 5V
  
  Fig 1: Measuring Voltage Between Power Wiring Terminal Of Height Sensor Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
5. Is the measured value within specifications?
  YES
  - Go to the next procedure.
  NO
  - Check a open of power wiring or shorted circuit for Height sensor.
  - If there is no problem in Power circuit, Substitute with a known-good AFLS ECU and check for proper operation. If problem is corrected, replace AFLS ECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Voltage Inspection for Signal Circuit
1. IG key "OFF".
2. Take off a wiring connector of Height sensor.
3. IG "ON"
4. Measure voltage between power wiring terminal of Height sensor connector and chassis ground.
  Specification: 5V
  
  Fig 2: Measuring Voltage Between Power Wiring Terminal Of Height Sensor Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
5. Is the measured value within specifications?
  YES
  - Go to the next procedure.
  NO
  - Check a open of power wiring or shorted circuit for Height sensor.
  - If there is no problem in Power circuit, Substitute with a known-good AFLS ECU and check for proper operation. If problem is corrected, replace AFLS ECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  - Repair or Replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Short Inspection for Ground Circuit
1. IG key "OFF".
2. Take off a wiring connector of AFLS ECU and Height sensor.
3. Measure resistance between ground terminal of AFLS ECU wiring connector and chassis ground of Height sensor.
  Specification: Approx. 1.0 Ω
  
  Fig 3: Measuring Resistance Between Ground Terminal Of AFLS ECU Wiring Connector And Chassis Ground Of Height Sensor
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured value within specifications?
  YES
  - Go to the next procedure.
  NO
  - Check a open of power wiring or shorted circuit for Height sensor.
  - If there is no problem in Power circuit, Substitute with a known-good AFLS ECU and check for proper operation. If problem is corrected, replace AFLS ECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  - Repair or Replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.