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: Display - Throttle Position Voltage Waveform Screen
  Courtesy of HYUNDAI MOTOR AMERICA
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.