PDM Signal Circuit Inspection

1. IG "ON" & ENG "OFF"
2. After connect GDS, select "Oscilloscope" mode.
3. Measure the signal waveform on PDM CAN High line.

   Specification:  Refer to "SIGNAL WAVEFORM "

   Fig 1: Measuring Signal Waveform On PDM CAN High Line

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Identifying Terminals For CAN High Line

   Courtesy of HYUNDAI MOTOR AMERICA
4. Does the measured signal waveform follow the specification?

YES 

• Go to " 2 CAN Low Line Inspection" procedure.

NO 

• Check short to battery or ground. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

1. IG "ON" & ENG "OFF"
2. After connect GDS, select "Oscilloscope" mode.
3. Measure the signal waveform on PDM CAN Low line.

   Specification:  Refer to "SIGNAL WAVEFORM "

   Fig 3: Measuring Signal Waveform On PDM CAN Low Line

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 4: Identifying Terminals For CAN Low Line

   Courtesy of HYUNDAI MOTOR AMERICA
4. Does the measured signal waveform follow the specification?

YES 

• Go to "COMPONENT INSPECTION " procedure.

NO 

• Check short to battery or ground. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.