W/Harness Inspection

Check the vehicle speed sensor by using the scan tool.
(if normal, current vehicle speed is display).
Check if current vehicle speed is same as vehicle speed displayed on the GDS.

Fig 1: Screen Display - Vehicle Speed On GDS
Courtesy of HYUNDAI MOTOR AMERICA
Check the damage to the connectors and wiring.
Check the power.
1. Turn ignition switch OFF.
2. Disconnect the vehicle speed sensor.
3. Turn ignition switch ON.
4. Check the voltage of the power terminal.
  Specification: 11.5V ~ 13.0V
Check the signal.
1. Turn ignition switch OFF.
2. Disconnect the vehicle speed sensor.
3. Turn ignition switch ON.
4. Check the voltage of the signal terminal.
  Specification: 8.0V ~ 11.5V
Check the ground.
1. Turn ignition switch OFF.
2. Disconnect the vehicle speed sensor.
3. Turn ignition switch ON.
4. Check the voltage between signal terminal and body ground.
5. Check the voltage between signal terminal and ground terminal.
  Specification: 4) - 5) = Within 200mV