Component Inspection

Check MAPS performance.
1. IG "OFF".
2. Connect CH A probe to signal terminal of TPS and CH B probe to signal terminal of MAPS connector.
3. Warm up the engine to normal operating temperature.
4. Measure signal waveform of MAPS and TPS together by actuating the throttle.
  Specification:
  
  Fig 1: Measuring Signal Waveform Of MAPS And TPS
  Courtesy of HYUNDAI MOTOR CO.
5. Is the measured signal waveform (Comparison response of TPS with MAPS) O.K?
  YES
  
  Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  
  NO
  
  Substitute with a known - good MAPS and check for proper operation.
  
  If the problem is corrected, replace MAPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.