Component Inspection

■ Check CMPS 

1. IG "OFF" and connect GDS.
2. ENG "ON" and Measure signal waveform at signal terminal of CMPS.

   Reference signal waveform: 

   Fig 1: Screen Display - Normal Waveform Of CMPS1 & 2 At Idle

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Measuring Signal Waveform At Signal Terminal Of CMPS

   Courtesy of HYUNDAI MOTOR AMERICA
3. Is the measured signal waveform normal?

   YES 

   • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
     NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others

   NO 

   • Substitute with a known - good CMPS and check for proper operation. If the problem is corrected, replace CMPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.