Repair Procedures: Inspection

Mount the test fuse to the switch fuse and relay fuse part to confirm a normal joint fit.

Courtesy of HYUNDAI MOTOR AMERICA

Courtesy of HYUNDAI MOTOR AMERICA

1. Analyze GDS data and confirm if there is anything wrong with the stop lamp switch.
   1. Connect the GDS to the self-diagnosis connector.
   2. Turn the spark switch on
   3. Step on the brake pedal.
   4. Inspect the "brake switch" category that displays the "sensor data" GDS.

      Normal waveform:  The pressure sensor signal value will change according to the brake ON/OFF switch.

      Courtesy of HYUNDAI MOTOR AMERICA

Check to see whether or not each connector has been damaged, or terminal surge, or incomplete connection has taken place

[Engine room junction box] 

Courtesy of HYUNDAI MOTOR AMERICA

[ABS/VDC control module] 

Courtesy of HYUNDAI MOTOR AMERICA

Connect probe to each terminal wire and confirm oscilloscope waveform.

[Stop lamp switch input/output] 

Courtesy of HYUNDAI MOTOR AMERICA

[Oscilloscope waveform screen] 

Courtesy of HYUNDAI MOTOR AMERICA